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CSBG Archive

Lorendiac’s Lists: Character Aliases that Marvel and DC Have Both Used (5th Draft)

CHARACTER ALIASES THAT MARVEL AND DC HAVE BOTH USED (5TH DRAFT)

Pop Quiz!

Each of the following aliases has been used by:

A) One or more Marvel characters.
B) One or more DC characters.
C) All of the above.

(Bearing in mind that when I label characters as “Marvel” or “DC,” I include any who were first published at other companies, but who are currently connected to Marvel continuity or DC continuity because of later purchases or licensing agreements.)

Spelling and punctuation are important — the names “Batman” and “Bat-Man” are not quite the same thing (although you won’t see either version of that on this Quiz). But to make it a bit easier for you, for the purposes of this Quiz I don’t care whether or not a certain user of an alias was in the habit of using the word “the” at the beginning of his pseudonym when introducing himself. With all that in mind, here’s my suggestion for taking the quiz. On a piece of paper or in a Notepad window, please start one line with the letter A, one with B, and one with C. Then, as you peer at the list of names, jot down each numeral from 1 to 21 on the appropriate line. When you check the Answer Key at the very bottom of this ridiculously long piece, you can see how you did.

01. Turtle Man
02. Tachyon
03. Spider Man
04. Songbird
05. Sabretooth
06. Risque
07. Professor X
08. Onyxx
09. Nightman
10. Krag
11. Kingpin
12. King Cobra
13. Iron Fist
14. Heatwave
15. Hard Drive
16. Ghost Rider
17. G-Force
18. Dream Girl
19. Catspaw
20. Cat Woman
21. Black Queen

Now that the Quiz is over, let’s move along.

Introductory Comments

For many years, I had wondered just how often Marvel and DC swipe colorful character names from each other. Every once in a while I’d look at a new hero or villain and think, “Haven’t I seen that name used before, on the other side of the fence?” But it was only in early 2007 that I finally decided to post something on several comic book forums, soliciting suggestions for what became the First Draft of this list. I could think of a few names offhand (“Captain Marvel” was an easy one), and I figured there were more duplications I had seen over the years but wasn’t immediately remembering, and probably other cases involving characters I’d never heard of. I estimated I might end up with 30 “shared aliases” after my fellow fans had weighed in. Then I’d post the resulting list on my favorite forums, and readers would express amusement, and then we’d pretty much forget the whole thing. Right?

That wasn’t quite what happened.

A week later, thanks to the help I received on various forums, my First Draft actually listed 166 shared aliases. Several months later, incorporating new suggestions from other people along with many others I had dug up on my own, I had 303 in the Second Draft. A year after that, I figured I had 416 in the Third Draft. And a year after that, I was up to 653 aliases which both Marvel and DC have used for characters (or someone else used them at another company, and then Marvel or DC later added the relevant characters to their collections, one way or another).

It’s been a little over a year since the last time around, and now I’ve brought it up to . . . drum roll, please . . . 1139 listings of “shared aliases.” Who needs originality in a name, anyway?

As usual, I dare to hope that I finally have most instances of such “duplication” covered here. At any rate, I’ll probably stick to my traditional rule of requiring at least 100 additional aliases be added to the list before I will even consider releasing another draft. How long will it take to accumulate them? Beats me!

Ground Rules

Over the years I’ve had to hammer out some rules of thumb to use in deciding what counts and what doesn’t for the purpose of this list. Let’s run through those now, to save you the trouble of asking why I completely skipped over certain names. (Or you may skip ahead if you’re in a hurry to get to the good stuff, but if you do it that way, then please come back to read these rules later, before you actually ask why I forgot to mention someone who popped into your head!)

1. I’m not interested in characters who have been around so long that they are in the “public domain.” For instance, DC and Marvel have both put their own spins on various characters from Norse Mythology, Graeco-Roman Mythology, Egyptian Mythology, Arthurian Legend, et cetera. But if they didn’t “create” those characters, then I’m not interesting in calling those cases of “duplication.” (On the other hand, I make a possible exception for personifications of the concept of “Death” at both companies. I don’t see that the Marvel version or the Neil Gaiman version from “Sandman” were simply swiped from any single preexisting mythology.)

Note: After I had written the first three drafts of this project, I became aware that there is some reason to believe that at at least some of the Golden Age Quality characters have passed into the public domain by now. Or their copyrights have, even if some relevant trademarks may not have? However, I am not an expert on the legalities and I don’t pretend to know exactly how it stands in each possible instance. Furthermore, I have heard of how Bill Black (of “FemForce” fame) got threatened with legal action from DC when he started publishing “Phantom Lady” stories in the 1970s (on the theory that the original character to use that alias had become “public domain” already), so that leads me to believe that DC thinks (or at least used to think, a few decades ago?) that it owns the original Phantom Lady and various other Golden Age Quality characters, even if that belief may not have been put to the acid test in a court of law. To keep my life relatively simple: Until further notice, I continue to treat any “Golden Age Quality” material as DC material for the purposes of this list if the character has a namesake at Marvel. On the other hand, I’m not interested in listing villains who once fought the original Golden Age Blue Beetle, because I gather it’s commonly accepted that he and his stories (including any original villains featured therein) are definitely “public domain” material now. Ditto for most comic book characters published by Fox, Centaur, and Nedor in the Golden Age.

2. On the other hand, I am willing to list any names which both companies have swiped from mythological sources and then recycled for “new” character concepts who definitely are not “the original Andromeda of Greek myth” or whatever. Both DC and Marvel have, in fact, used the name “Andromeda” for female characters. I list those heroines below, but my “Andromeda” listing does not mention any treatment of the original Andromeda which may have been published by either company.

3. I also ignore any cases where both companies have handled the same “licensed” characters at different times. Both DC and Marvel have published “Tarzan” titles, for instance, but neither company ever claimed to own him, nor any other characters created by Edgar Rice Burroughs.

4. “Group names” don’t count unless individual members also demonstrate the habit of using that name or an obvious variation for themselves personally. Examples of what I don’t count: DC has had evil organizations with the names “Cyclops” and “Colossus,” but I don’t list those as “duplicates” of the names of famous X-Men. Likewise, Marvel and DC each own characters who have used the name “Thunderbolt,” but my entry for that alias does not mention Marvel’s team concept known as “the Thunderbolts,” because each member of that team has used some other colorful alias for himself or herself.

5. After looking at the examples of “Dr. Doome” and “Dr. Doom,” I decided that “pronunciation trumps spelling.” If two names are obviously meant to be pronounced the same way by English-speaking readers, then I’ll count them as “duplicate aliases” even if there are differences in how they are usually spelled and punctuated.

6. It appears that at least a few dozen members of Marvel’s villainous group “The Elements of Doom” have been mentioned by name in the group’s published appearances. I believe it’s been stated in dialogue that their roster includes members named after the full periodic table, not just those members whose names have been mentioned in dialogue. So I’m assuming that any DC character named after a real chemical element has a namesake at Marvel. In cases where it doesn’t appear that such a character was ever mentioned by name at Marvel, I say “presumably one of the Elements of Doom” in the listing.

7. For a long time, members of the Royal Flush gang only dressed up to resemble playing cards found within the suit of spades in a standard deck. In recent years they’ve expanded the size of their organization to include the other three suits. However, I am working on the theory that even in the beginning, the “full official aliases” of core members were such things as “Ten of Spades,” “Jack of Spades,” “Queen of Spades,” and so forth, instead of just being Ten, Jack, Queen, King, and Ace (even though that was how they normally referred to one another in casual conversation, for the sake of convenience). At least some of the online resources which discuss the history of the Royal Flush Gang take that position (as I discovered when I became curious about this point), but if you want to argue that my current stance is wrong, I’ll do my best to consider any real evidence with an open mind.

8. To keep the project down to a manageable size, I’m only counting characters who effectively are controlled by Marvel or DC; either because they were created at those companies or because they were created at some other company whose “character stable” later ended up under the thumb of Marvel or DC (whether by purchase or by some long-term licensing deal that is currently in force). Any other, completely independent company gets ignored. For instance: Marvel and DC have both used “The Ghost.” I list those characters below, but I don’t include any mention of Dark Horse’s vigilante heroine Elisa Cameron, aka “Ghost,” because neither DC nor Marvel has any control over her. Similarly, I ignored the Milestone and Impact characters in the two drafts I posted in 2007, but I changed my mind for the Third Draft in 2008 after I heard DC had acquired permission to integrate both the Milestone and the MLJ/Archie/Red Circle stables into its standard continuity and see what happened. And I’ve decided to include a few cases of costumed characters from Alan Moore’s “Watchmen” who shared aliases with Marvel characters, although I’ve read that Alan Moore will regain full control of those original characters if and when DC lets the trade paperback collection go out of print. (Hey, it could happen! It’s only been a couple of decades, after all! But since it hasn’t happened yet, I figure those characters qualify as DC characters now.)

9. I ignore any characters who have never appeared in comic book format — regardless of how well they have done for themselves in other media, such as TV shows, movies, regular novels, or games which adapted character concepts now controlled by DC or Marvel. However: If a character debuted elsewhere, and later appeared in at least one printed comic book, that makes him fair game!

10. Defining “alias” in this context has led me to some tricky decisions. I’m not interested in finding cases where both Marvel and DC have shown original characters using such bland names as “John Smith” or “Mary Jones,” regardless of whether those were supposedly the “real names” or “aliases” of the characters using them. On the other hand, I tend to include the more colorful names of individual Inhumans, Deviants, New Gods, and Metal Men (among others), even in cases where we are either explicitly told or led to believe that the exotic names being used may be the only names those characters have ever had. It helps that those names often have clear meanings which seem relevant to the characters currently using them. This means that I often accept names that “look like a carefully chosen alias” even if they aren’t. However, I’ve decided I’m not interested in such things as multiple uses of the names “Arak” and “Arion,” because those just look too much like “real names” to me. (Yes, I end up making some purely arbitrary decisions on where to draw the line!)

11. Here are a few things I deliberately exclude from my list: “Atari Force” characters, because I don’t think DC owns them, and (as far as I know) they were never really integrated into the DCU. “Masters of the Universe” characters, for much the same reasons, although I know Superman did travel to Eternia and meet He-Man at least twice in the early 1980s. “Amalgam” characters, because they were not just “Marvel” or “DC” properties, but represented the deliberate swiping and merging of elements of various characters owned by both companies.

Note: After reading the Fourth Draft in 2009, an alert reader reacted to the previous paragraph by informing me that in the early 1980s, when DC was launching its “Atari Force” series, Warner Communications actually owned both Atari and DC. I hadn’t realized! But since Warner doesn’t own Atari now, nor have any license to continue using Atari-owned characters (as far as I know), I’m sticking to my guns and ruling that characters who debuted in “Atari Force” don’t deserve to be listed as DC characters in this document.

12. If one character has normally called himself “Blade” and another frequently introduces himself as “The Blade” — feel free to insert any other word or phrase for “Blade” in that example — then I treat those as variants of the same alias, but I try to distinguish between those different usages in my listing for “Blade/The Blade.” I’m sure I fail to make the correct distinctions on many occasions. The online databases which I use for my research generally don’t bother to mention whether each user of a certain alias is or isn’t in the habit of pronouncing the direct article (“The”) when introducing himself.

13. Sometimes a name you are seeking may be on the list — but not quite where you expected it to be. I want to explain something about that. The way I was taught to alphabetize things was that “Black Widow” precedes “Blackbeard” — the space in the middle makes all the difference. Not everyone does it that way in the modern world — for instance, in two movie review books I have on hand, one puts “Black Widow” shortly before any movie title starting with “Blackbeard,” and the other puts “Black Widow” way after any title starting with “Blackbeard” — but I stick to the way I was taught in school. However, when I find that characters using identically-pronounced aliases have spelled and/or punctuated them in different ways, such as “Black Beard” and “Blackbeard,” I have to make an arbitrary decision about which version to put first in that listing, and I then use that one for alphabetization purposes. (In the case of “Blackbeard” and “Black Beard,” I chose to put “Blackbeard” first because that version is so much more famous in the real world, thanks to a historical pirate captain.)

14. By and large, I am not interested in trying to tally up how many times one basic character concept (such as “Peter Parker is the secret identity of Spider-Man”) is supposed to have been duplicated throughout a comic book multiverse. Although this is not a hard-and-fast rule, I’m likely to just pick the version who seems the most significant . . . and leave it at that. For instance, in my “Spider Man/Spider-Man/Spiderman” listing, I just mention the original Peter Parker of Earth-616; I felt no need to give a grand total for how many variations on the “Peter is Spider-Man” theme have existed in “What If?” stories and the Ultimate Universe and any other alternate timelines we’ve glimpsed. On a similar note, I don’t feel the burning need to list every time a “regular user” of a certain alias has been briefly impersonated by someone who probably had no intention of keeping that alias for himself in the long haul — such as any time someone else in the 616 continuity has pulled on a Spider-Man costume for the next five minutes as a plot device. (Inevitably, though, some of the users I list for certain aliases were, in fact, striving to impersonate another user — but usually for a lot longer than five minutes at a stretch!)

15. This rule wasn’t firmly established in the earlier drafts, but I don’t count the colorful names bestowed upon “ordinary” animals by their masters. Such as a cowboy hero’s favorite horse, or someone else’s trained dog. I’m more likely to count something with an animal-shaped body as a “real character” if there is reason to believe it has human-level intelligence, however that may have happened. For instance, I give the benefit of the doubt to Merlin, the leopard which resides in the home of Baron Winters of the Night Force. He seems capable of carrying on an intelligent conversation with the Baron (criticizing Winters’s lapses of judgment, for instance), even if we never “hear” Merlin’s side of such exchanges as anything more than growls.

16. Some Doubtful Cases: I am currently working on the theory that the characters known as “Comet the Super-Horse” (Silver Age Superman continuity), “Neon the Unknown” (Golden Age hero), “Omega the Unknown” (1970s Marvel hero), and “Deathstroke the Terminator” (Slade Wilson) all used those complete strings as their preferred aliases; not just the first words of each string. Thus, none of those guys are mentioned below in listings for “Comet,” “Neon,” etc. I don’t list Tryco Slatterus under “Champion,” either, because I believe that for millennia his full preferred alias was “Champion of the Universe.”

Now, on to the main event!

THE MASTER LIST

Be warned: I don’t make any claim to tell you everything you could possibly need to know about any of these characters. Most of the time, I won’t even mention what their superpowers are (if any). Nor will I usually tell you which issue showed a certain character using a certain alias for the first time — partially because I figure most of my readers don’t want to see that in every listing; it would just slow things down. And I usually don’t bother mentioning which company used a certain alias first. I always list DC characters first, but only because “DC” precedes “Marvel” alphabetically! I provide as much data as I happen to feel the need to provide in any given case, and you’re welcome to do further research on your own time if you feel the burning urge to know more about a particular user of a particular name! (Some suggestions on where to do that research are found near the bottom of this piece.)

Abraxas
DC: Henchman with a devil-mask who worked for the villain Nicholas Scratch in the late 90s.
MARVEL: Three users; one managed to slay the Galactus of an alternate reality.

Abyss
DC: Two villains. One fought Chris King and Vicki Grant in their “Dial H for Hero” days; one is part of a group called “the Presidential Oversight Watch” in the era of the Legion of Super-Heroes (the post-Zero Hour Reboot version).
MARVEL: Nils Styger, a Genoshan mutate who has helped the X-Men; lost his powers on M-Day.

Acrobat/The Acrobat/Acro-Bat
DC: Five users of “Acrobat” or “The Acrobat”; all villains. One fought Captain Marvel Jr., one fought Golden Age Hawkman; one fought the Silver Age versions of Green Arrow and Speedy; one fought Judomaster and Tiger in their Silver Age Charlton days (their stories were set in the WWII era, though); one was a member of Amos Fortune’s “Luck League” in one JLA story. “Acro-Bat” was the heroic alias used by a member of the Justice Experience until he and most of his team were killed back in the 1970s (according to a retcon in the 1990s); his daughter, Cameron Chase, grew up to be an agent of the DEO and had her own solo series “Chase” for a little while.
MARVEL: At least three users of “Acrobat” (one lived in the 19th Century and fought the Rawhide Kid).

Adonis
DC: Villain who fought the Golden Age Superman. There was also a villain using this name in the “Teen Titans” animated series; he makes the cut here because he appeared in at least two issues of the spinoff comic book series “Teen Titans Go!”
MARVEL: Eric Cameron, villain; apparently died while fighting Captain America.

The Adversary
DC: The name used by a villainous alter-ego of Cary Richards, a kid who had foolishly made a deal with Lord Satanus in exchange for superpowers that made him (when in his magical adult form) about as physically tough as Superman. That situation seems to have been resolved several years ago; The Adversary has not reappeared since then.
MARVEL: A demonic entity who usually fights Forge (and any allies Forge has at the time); he lives in a different reality, but keeps trying to take over the Earth.

Aftermath
DC: Villain; leader of a group which is also called “Aftermath.”
MARVEL: Villain; artificially created entity; one of “the British Sleepers”; defeated by Plasmer with the help of Silver Surfer and The Doorman.

Agent Axis
DC: Two users. The first was a Golden Age Nazi villain (a female spy) who fought the Boy Commandos. The other appeared in a single story in “World’s Finest Comics #250″; he was another Nazi agent who fought several of Earth-One’s heroes when they had traveled back in time to 1942.
MARVEL: Possibly two users. The better-known one was a WWII-era villain, retconned in during the 1970s, who was somehow a merger of three Axis spies (one German, one Italian, one Japanese) into a single entity with the strength of three men. The other user (if it wasn’t just a memory of the same fellow in a very different costume) had been mentioned just once, several years earlier, even getting a cameo as a hallucination, during a Silver Age Captain America story in which Steve Rogers had been drugged and thought he saw “Agent Axis,” one of his old foes from the WWII era.

Agent Orange
DC: Four users; one of them is a Wildstorm character.
MARVEL: Two users; one was Anjelica Jones in a “What If?” timeline.

Agent X/Agent-X
DC: Colonel Togo Ku, a Japanese spy who fought the Golden Age Wonder Woman, called himself “Agent X” while masquerading as a woman.
MARVEL: Four users of “Agent X” and one of “Agent-X.”

Agony
DC: Partner of Ecstasy; the two of them are enforcers of the laws of Hell.
MARVEL: Female member of the Hellbent; a villainess who served Seth; now dead.

Airstryke/Airstrike
DC: “Airstryke” was William Kavanagh, a Hawkman villain who was later killed by the seventh Brother Blood.
MARVEL: “Airstrike” is Dimitri Bukharin, agent of the Russian government; formerly one of the many users of “Crimson Dynamo.”

Ajax
DC: Superman fought a robot of this name in a Golden Age story. Later, we learned the Silver Age Superman gave this name to one of his robot doubles because it was stronger than the rest of its kind; that robot’s mind subsequently was transferred into a different body (called “Wonder-Man”) by aliens; but that character died soon after.
MARVEL: Several users.

Alchemist/The Alchemist
DC: At least two users of “The Alchemist” — one of them was a Golden Age villain also known as “Professor Zodiac.” “Alchemist” was the heroic alias being used by Jan Arrah, formerly known as “Element Lad,” in Legion of Super-Heroes continuity as it stood shortly before the Post-Zero Hour Reboot.
MARVEL: Two mutants have each used “Alchemist.”

All-American
DC: In the continuity of “Kurt Busiek’s Astro City,” a superhero used this name in the 1940s and 1950s.
MARVEL: One of the aliases used by Jack Magniconte of the New Universe.

Alpha
DC: At least two users. One was an alien terrorist, partner of “Beta,” who once fought the Silver Age Supergirl. The other was a former terrorist who appeared a few times in Cassandra Cain’s regular “Batgirl” title. In the title’s final story arc, Alpha seemed to have become very loyal to Cassandra — but he hasn’t been heard from since that time, so don’t ask me if he’s currently “good” or “bad” or “dead” or what!
MARVEL: Several users.

Aluminum
DC: One of the second (and evil) team of Metal Men. Destroyed.
MARVEL: Presumably one of the Elements of Doom.

Ammo
DC: Villain; member of the New Order.
MARVEL: Villain who fought Daredevil twice during the Ann Nocenti run; since then, he has had just one other appearance.

Anaconda/Ana Conda
DC: “Ana Conda” was the leader of an evil group called “the Snakeskin Warriors” who fought Bomba the Jungle Boy in a Silver Age comic. Bomba was just temporarily licensed by DC from the owners, but as far as I can tell, Ana Conda and his group were original creations for the comic book story and presumably are owned by DC. (If I’m wrong, someone say so!)
MARVEL: “Anaconda” is Blanche “Blondie” Sitznski, villainess.

The Anarchist
DC: Simon Elis, a villain who fought the JLA in the 1970s and hasn’t been heard from since?
MARVEL: Tike Alicar, hero, member of X-Statix; dead.

Anarchy/Anarky
DC: “Anarky” is Lonnie Machin, an anarchist vigilante who thinks he’s a hero, but Batman and other superheroes generally disagree with him.
MARVEL: “Anarchy” is a villain; a redheaded woman who worked for Flag-Smasher’s ULTIMATUM outfit during the “Acts of Vengeance” event in 1989. She tangled with Moon Knight and The Punisher on that occasion, and hasn’t been heard from since.

Andromeda
DC: In the Post-COIE era, and again after the Post-Zero Hour Legion Reboot, the heroine known as “Andromeda” was Laurel Gand, a retconned substitute for the role previously filled by the Pre-Crisis Supergirl in the continuity of the “Legion of Super-Heroes.” She was erased by the 2004 Reboot of Legion continuity.
MARVEL: An Atlantean superheroine.

The Angler
DC: Two users. A villain who fought the Golden Age Green Arrow, and another villain who fought Wonder Woman in a 1955 story (I’m not sure if the second guy qualifies as one of the last of the Golden Age villains, or one of the first of the Silver Age villains, or what.)
MARVEL: Kevin Brackett, villain who fought Quasar.

Animal
DC: Apparently the preferred alias or nickname of Alberto Tontini, a gangster who fought the vigilantes known as “the Chain Gang” in their own series.
MARVEL: Appeared in just one X-Men story, as part of a task force sent to capture Fantomex.

Animus
DC: Anima’s demonic male counterpart; he is supposedly the personification of all mankind’s rage and masculine drive.
MARVEL: At least three users.

Annihilator/The Annihilator
DC: In the Silver Age, Superman fought Karl Keller, who had gulped down some explosive chemicals of Kryptonian origin and thereby became “The Annihilator.” The effect of the chemicals finally wore off and Karl seemed so contrite about the whole thing that Superman let him go free. Karl was never heard from again. In the early 1980s, the Earth-One Supergirl teamed up with the first Batgirl (Barbara Gordon) to fight another villain of this name; he was never heard from again after being depowered at the end of the storyline.
MARVEL: “Annihilator” is listed in online resources as an alias of The Hulk (Bruce Banner), but I don’t know when or why he called himself that.

Anomaly
DC: Super-powered clone of Floyd Barstow; villain, but with some signs of scruples.
MARVEL: At least two entities have used this.

The Answer
DC: Mike Patten, villain.
MARVEL: Two users, both villains.

Ant-Man
DC: Jumbo Carson, villain (initially masquerading as a hero), who appeared in a single Silver Age Robin story.
MARVEL: Hank Pym’s first heroic costumed identity. Scott Lang later recycled the role.

Antaeus
DC: Two users. One was a member of the New Olympians in the 1980s. One was Mark Antaeus, a metahuman who joined the JLA, assassinated a mass-murdering dictator in the Middle East, discovered he had thereby triggered a very messy civil war, and then committed suicide; all this happening in the graphic novel “JLA: Superpower.”
MARVEL: A member of the superpowered race called “the Neo.”

The Anti-Monitor/Aunty Monitor
DC: “The Anti-Monitor” was the main villain in the legendary “Crisis on Infinite Earths”; a few years ago he came back from the dead.
MARVEL: “Aunty Monitor” was a parody of DC’s “Anti-Monitor” in a “What The–?” story.

Note on the above: This is a uniquely borderline case. Whether you will think the Marvel parody version truly qualifies under my “pronunciation trumps spelling” rule depends on two other things: Whether you normally pronounce “Aunt” the same way as the word “ant” or make it rhyme with “gaunt” instead, and whether you normally pronounce the prefix “Anti” to end with the sound of a long E or of a long I. According to my dictionary, both pronunciations of “Anti” are widespread and acceptable, so this is a case where there is plenty of room for honest disagreement about the details!

Ape/The Ape
DC: “The Ape” was a villain who fought Batman in the mid-90s; died.
MARVEL: “Ape” is one of the Morlocks.

Apparition/The Apparition
DC: “The Apparition” was a villain who only appeared in “Super Friends #3″ and promptly got killed — along with 99 other supervillains — as part of another villain’s fiendish scheme. “Apparition” was the alias preferred by the Post-Zero Hour Rebooted version of Tinya Wazzo of the Legion of Super-Heroes. (In the original Legion continuity, her usual alias was “Phantom Girl.”)
MARVEL: At least three users.

Aquarius
DC: At least two. The first was an evil living star who fought a JSA/JLA team-up and killed Larry Lance (husband of the original Black Canary, and thus father of the modern Black Canary). The more recent user is Sophie Orkin, who (I am told) sometimes works with Nightwing (Dick Grayson) and sometimes against him.
MARVEL: At least four villains have used this name while affiliated with one version or another of a “Zodiac” group; one of them was just a Life Model Decoy.

Arachne
DC: Richard Thomas Agoras, villain who fought Wonder Woman.
MARVEL: Four users, including Jessica Drew (before she ever became “Spider-Woman”) and Julia Carpenter (after she quit being “Spider-Woman”).

Arcanna
DC: Villain who fought Milestone’s Hardware in the 1990s.
MARVEL: Arcanna Jones, aka “Arcanna,” was the Squadron Supreme’s functional equivalent of the JLA’s own Zatanna Zatara in the original Squadron continuity.

Archer/The Archer
DC: “The Archer” was a Golden Age villain who fought Superman.
MARVEL: “Archer” is a member of the XSE in Bishop’s future timeline; he traveled back to “modern times” and ended up inhabiting the body of a recently deceased criminal named Jude Black.

Arclight
DC: Noah Pasternetti, villain.
MARVEL: Phillippa Sontag, villain; one of the Marauders who performed the Morlock Massacre.

Argent
DC: Toni Moretti, heroine; one of the new batch of “Teen Titans” who debuted in the mid-90s.
MARVEL: Samantha Hassard, a member of Clan Destine.

Argon
DC: One of Mr. Element’s henchmen used this alias in a single story. Later, there was an extraterrestrial villain called “Argon” who fought Superman in the 1970s, died, and hasn’t been heard from since.
MARVEL: Presumably one of the Elements of Doom.

Argus
DC: Two users. One was an obscure villain; one is Nick Kelly, hero.
MARVEL: Villain who cut off Leiko Wu’s hand.

Ariel
DC: Temporary “Dial H for Hero” identity of Vicky Grant.
MARVEL: Several users, including Kitty Pryde at one point.

Armageddon
DC: Villain who fought the Pre-COIE Earth-Two Wonder Woman in the 1940s (according to a retcon in the 1970s). I don’t know whether or not he still existed in the Post-COIE continuity.
MARVEL: Two users; one is the heroic son of an alternate timeline’s version of the villain Apocalypse.

Arsenal
DC: Four users. Three were villains. The last user was Roy Harper, hero; formerly “Speedy” and later known as “Red Arrow.”
MARVEL: An android long since destroyed. Also: a villain who fought Moon Knight.

Asmodeus
DC: A Golden Age villain who fought John Zatara. Also, according to a Vertigo one-shot, a demon of this name was fathered by The Phantom Stranger.
MARVEL: Several users, including at least two demons.

Note on the above: In such cases, it’s very hard to tell if a character described as a demon, and using the name of a legendary demon, is supposed to be “the original user of that name who has been in the public domain for ages” on the one hand, or “someone brand new who is simply recycling a scary old name” on the other. In this case I don’t know about the Vertigo one, but I gave him the benefit of the doubt by listing him here. On the other hand, it seems logical that if Marvel has depicted at least two demons who answer to that name, then at least one or the other should be an original character, and possibly both of them are!

The Asp
DC: Golden Age Quality villain who fought and was killed by The Clock.
MARVEL: Two users; the best-known is Cleo Nefertiti, who was a longtime member of the Serpent Society and also of B.A.D. Girls, Inc. (Sometimes she goes back and forth between the two.)

Assassin/The Assassin
DC: The leading man of a 70s feature titled “Codename: Assassin” simply called himself “The Assassin” in dialogue.
MARVEL: Several users.

Astarte
DC: Villainess; a former Amazon who fought the Earth-One Wonder Woman.
MARVEL: Villainess; one of the Eternals.

Astra
DC: Hero; member of the Xenobrood. Decades earlier, there was a single appearance of a criminal astrologist called “Astra” in a Golden Age Starman story. This is also the real first name of an energy-powered girl in the “First Family” of “Kurt Busiek’s Astro City” — it might qualify as a “costumed alias” as well. (I include her to be on the safe side.)
MARVEL: Several, including a member of the Shi’ar Imperial Guard and another character who claimed to be a former member of Magneto’s Brotherhood of Evil Mutants.

Astro
DC: Bruce Mills became a superhero under this name in the Iron Curtain nation of Dolomain a long time ago — and may not have been heard from since his debut story. Another “Astro” appeared in one Silver Age story as part of a group called “the Band of Super-Villains”; they fought Superman, Batman, and Robin.
MARVEL: Apparently this was the name used by a Golden Age character in one of the stories in “Marvel Mystery Comics #35.” I know nothing more about him, her, or it (as the case may be). I have not found any reference to the character ever reappearing.

Athena
DC: Celia Kazantkakis, a female crimelord.
MARVEL: One of the Warheads; killed by Ghengis shortly after her debut.

Atlas
DC: An action hero of ancient times; not the same guy as the Titan of Greek myth.
MARVEL: Steve Rand, villain. Later: Erik Josten, who’s tried to be a hero as a Thunderbolt (after being a villain under other names).

Atom Smasher/Atom-Smasher
DC: “Atom Smasher,” was once used by Manfred Mota, Golden Age villain. “Atom-Smasher” is an alias used by Albert Rothstein (formerly “Nuklon” of the original “Infinity Inc.”)
MARVEL: Two villains, brothers; Ronald English (dead) and then Michael English. They both used the hyphen.

Aura
DC: Heroine; one of the Ravers.
MARVEL: Annie Herd, bounty hunter. Apparently last seen hospitalized with severe injuries.

Aurora
DC: Two users. The first was a clone-slave of “the Master” who fought Chrick King and Vicki Grant in their Dial for Hero days; that Aurora apparently died at the end of that story arc. The second user was one of the RECOMbatants who once fought the Titans; died in the same issue in which she debuted.
MARVEL: Jeanne-Marie Beaubier, heroine; founding member of Alpha Flight.

Avatar/Avatarr
DC: “Avatar” was a temporary “Dial H for Hero” identity of Chris King. The same spelling was later used by the man who had been “Tiger,” WWII-era sidekick to Judomaster, after “Tiger” grew up to be an insane villain.
MARVEL: At least two users of “Avatar”; one is an adult version of Franklin Richards. Also, there was an “Avatarr” (now dead) in the 2099 timeline.

Axis
DC: Villainess; part of the Dark Nemesis team.
MARVEL: Neo-Nazi villain who fought the First Line and finally died on the moon.

Backlash
DC: Three users. One is a villain; part of the Aryan Brigade. The name was also used for a long time by Marc Slayton, a Wildstorm hero, and recently has been used by Marc’s daughter, Jodi Morinaka.
MARVEL: Mercenary in the Ultraverse; fought Warstrike.

Azrael
DC: Several users; one was a winged alien who worked with the Titans for awhile; another was Jean Paul Valley, a brainwashed assassin for the Order of St. Dumas. (When Jean Paul debuted, he was replacing his father as Azrael, and we were told that their ancestors had been Azraels for a long, long time before Batman ever heard of them.)
MARVEL: At least two users besides the legendary one.

Ballistic/Ballistik
DC: “Ballistic” was Kelvin Mao, hero; member of Blood Pack; dead.
MARVEL: “Ballistik” is a Marvel UK character; member of something called “the Zoo.”

Bane
DC: Villain who broke Batman’s back in “Knightfall”; now a member of the “Secret Six.”
MARVEL: An enemy of the Knights of Pendragon.

Banshee
DC: Max Bine, a villain who fought the Question (Vic Sage) when he was still a Charlton character.
MARVEL: Sean Cassidy, hero.

Barium
DC: Robot; member of an evil “Metal Men” team. Destroyed.
MARVEL: One of the Elements of Doom.

Barker/The Barker
DC: “The Barker” was another name for Carnie Callahan, a Golden Age character in Quality’s comics.
MARVEL: “Barker” is a villain; one of the three brothers known as “The Howlers,” who served as part of “The Gladiators.”

Baron Blood
DC: Golden Age Quality villain who fought the Blackhawks.
MARVEL: At least three users; maybe more. The first was Lord John Falsworth, Jr., a vampiric villain who worked for the Nazis during WWII (although he only debuted in an issue of “The Invaders” published in the 1970s). One of the later users was John’s great-nephew Kenneth Crichton, and another was Dr. Stephen Strange’s brother Victor.

Barracuda
DC: At least two.
MARVEL: At least three.

Barrage
DC: Karnowsky, a Superman villain.
MARVEL: One of “the Riders of the Storm” who worked for Apocalypse.

Basilisk
DC: A Golden Age Quality villain who fought the Blackhawks. In the Silver Age, the name was also used by Irish Autumns, hero. (Irish was a shameless parody of Scott Summers — Cyclops of the X-Men — in an Inferior Five story.)
MARVEL: At least six users.

The Bat
DC: At least three users, one way outside of the mainstream DCU timeline. First: a villain who fought the Blackhawks in a Golden Age Quality comic. Second: Helena Bertinelli — while wearing a dark, pointy-eared costume in the “No Man’s Land” event in a valiant effort to keep the Bat-legend alive in Gotham while Bruce Wayne was far away, indulging in a months-long childish sulk — introduced herself as “I’m The Bat” on at least one occasion that we saw, and probably a lot more that we didn’t. Having people call her “Batgirl” came later. Third: In the alternate timeline featured in the Elseworlds stories “JSA: The Liberty Files” and “JSA: The Unholy Three,” both set in the 1940s, the local analog of what we would normally call “Batman” is consistently called “The Bat” instead.
MARVEL: Villain in the nineteenth century who fought The Rawhide Kid and died.

Batboy/Bat-Boy
DC: At least two users of “Batboy.” First: Midge Merrill, a midget who dressed up as a “batboy” (baseball style; not trying to impersonate a flying mammal) while fighting crime in one Batman story in 1955. Second: a name used for Bruce Wayne (Batman) during the period when he’d been magically reduced to a much younger age during the “Sins of Youth” event.
MARVEL: A character named “Bat-Boy” was mentioned in dialogue, but never depicted, during a parody of the Guardians of the Galaxy which was published in “What The–?” That unseen hero may be the same person as a juvenile crimefighter called “The Bat-Boy Wonder”; in the latter case, that name or nickname was mentioned on a pennant seen in a two-page parody story in another issue of “What The–?” (See the next item on this list for a few more details.)

Batman/The Batman/Bat-Man/The Bat-Man
DC: The most famous user is Bruce Wayne, who debuted in 1939 as “The Bat-Man” but soon dropped the hyphen to become “Batman” (with the introductory word “The” apparently optional). Many other characters have used this name (usually unhyphenated) in later stories from DC; sometimes they were very temporary impersonators (with or without Bruce’s consent), and sometimes they acted as “Batman” on a more long-term basis, in or out of the “regular continuity,” but there is no question that Bruce Wayne is the iconic user of that role.
MARVEL: “Bat-Man” is the alias selected by a parody of DC’s Bruce Wayne in a two-page story in “What The–? #3.” There he is, sitting alone in the dark in his house, trying to think of a scary name and image to use in his impending war on crime — when all of a sudden, like an omen, a careless kid’s baseball crashes in through the window. On the splash page which is the second and final page of the story, we see the guy is now wearing a gray-and-blue outfit modeled on a baggy baseball uniform, and is apparently using the name “Bat-Man.” He doesn’t say “I am Bat-Man” in dialogue, but that name is conspicuously printed on some pennants, along with such things as “Park Knight” and “The Bat-Boy Wonder” (presumably that last item refres to the juvenile sidekick in the background who is clad in a red-green-and-yellow outfit). In all fairness, I should mention that down in the bottom right corner of that splash page, there is a memo from the Marvel legal department saying: “Forget it, guys! No way this sees print!”

Battering Ram
DC: A villain who fought Chris King and Vicky Grant in their “Dial H for Hero” days.
MARVEL: An X-Force member who died in battle.

Battleax/Battleaxe
DC: “Battleax” is an alias for Princess Norka of Nekrome.
MARVEL: “Battleaxe” has been used by several people.

Battlewagon
DC: Villain; member of the Hard Labor Gang which fought the Justice Experience team back in the 1970s of the DCU (according to much later retcons).
MARVEL: Ultraverse character.

Bazooka
DC: A bazooka-toting mercenary (first name “Joseph”) who was part of a group hired to attack the New Teen Titans in 1983; I don’t think he’s reappeared.
MARVEL: Dwight Frye, who served with the Black Powers and the Paranormal Platoon in the New Universe.

Beautiful Dreamer
DC: One of the Forever People.
MARVEL: Two users. The first was one of the Morlocks; she was killed by the Legacy Virus. The second is one of the group of psychically-gifted synthetic children called the Mannites.

Bedlam
DC: Two of them. One was a villain who gave Young Justice a hard time.
MARVEL: Four of them, apparently.

The Beetle
DC: Japanese agent who fought Fawcett’s Spy Smasher during WWII.
MARVEL: Several users; the most famous is Abner Jenkins, a longtime villain who eventually reinvented himself as the hero “Mach-4″ of the Thunderbolts.

Behemoth
DC: At least four users. One is the leader of the Gargoyles of Notre Dame who met the JLE (those gargoyles were knockoffs of the popular “Gargoyles” TV show, but not the same characters). The second was Taro Raiden, member of the Hybrid. The third is a Justice League foe named Terri. The fourth is Bob Brunner, a Legion of Super-Heroes character from the 100th century, according to at least one story in the Post-Zero Hour Reboot version of Legion continuity.
MARVEL: Several users, including a Hulk clone.

Bella Donna/Belladonna
DC: “Bella Donna” has been used twice. Once an obscure villainess; once a Yuppie Demon (whatever that is).
MARVEL: “Belladonna” is Narda Ravonna, villainess. (I don’t count Gambit’s ex-wife because “Bella Donna” really was part of the name on her birth certificate; not an alias.)

Bengal
DC: Villain who fought Green Arrow (Connor Hawke).
MARVEL: Duc No Tranh; joined the Initiative and then served in the Shadow Initiative group.

Beta
DC: Name used by a female alien terrorist who (along with her friend “Alpha”) fought the Silver Age Supergirl.
MARVEL: At least two users; one was an Ultra-Robot destroyed by the X-Men; another was one of the Red Ghost’s second group of super-powered apes.

Big Ben
DC: Villain; member of “the Big Gang” that fought Atom (Ray Palmer).
MARVEL: Villain who fought Spider-Girl in the MC2 timeline.

Big Bertha
DC: Villain; member of “the Big Gang” that fought Atom (Ray Palmer).
MARVEL: Heroine; member of the Great Lakes Avengers.

Bird-Man/Birdman
DC: “Birdman” was a Golden Age Quality villain who fought Quicksilver (the hero later known as “Max Mercury”). “The Birdman” was a crime boss in the continuity of “Kurt Busiek’s Astro City” who was active in the late 1970s (although apparently not based in Astro City itself).
MARVEL: “Bird-Man” has been used by three villains who each served with the Ani-Men; the first and second are dead.

Bishop
DC: Several employees of Checkmate must have held the rank/codename of “Bishop” in the original version of its hierarchy; the first character we explicitly saw called “Bishop” in the original “Checkmate” series was Harvey Bullock, in a period when he was not working for the GCPD. Also, in the continuity of “Kurt Busiek’s Astro City,” a villain called “The Bishop” was the sole survivor of a group of “Chessmen” who (on behalf of the villainess “The Red Queen”) got slaughtered when they invaded Kiefer Square.
MARVEL: Several users; best known is Lucas Bishop, a veteran member of the XSE (a law enforcement outfit) in an alternate future timeline before he ended up in “modern times” and joined the X-Men.

Black Ace
DC: Two users. Another alias occasionally used by the Golden Age Quality hero better known as “Black X.” Also a
MARVEL: A villain who appeared and died in one Golden Age story; I gather he was a pilot working for the Nazis.

The Black Baron
DC: Two users. A Golden Age Quality villain who fought Chick Carter. More recently, a villain who debuted in the “Battle for Bludhaven” mini.
MARVEL: Rupert Kemp, a vampiric villain who fought Captain Britain in the 1970s and died at the end of that story arc.

Black Bishop
DC: There was a time when “Black Bishop” was a codename/title within the Checkmate organization — after they stopped using such simple terms as “Knight” and “Bishop,” but before they started using terms which specified whose chain of command you were in, such as “Black King’s Bishop” or “Black Queen’s Bishop.” According to Wikipedia, the only person known to have been called “Black Bishop” while on the Checkmate payroll is a woman named Jessica Midnight.
MARVEL: A position in the Inner Circle of the Hellfire Club; several people must have held it over the years and we don’t know all their names, but one user was Brian Braddock (better known as the hero “Captain Britain”).

Black Box
DC: Laurence Cooper, hero of an alternate Earth, enemy of Solomon Grundy; only appeared in one issue of “Swamp Thing” in the 1990s.
MARVEL: Garabed “Gareb” Bashur, villain; formerly known as “Commcast” when he was leader of a mercenary outfit called the Executive Elite.

Black Cat/The Black Cat
DC: Early in his career, Barry Allen fought a criminal called “The Black Cat” in Paris. Later, DC introduced us to Steve Robinson, an African-American soldier in World War II, who was often called by the codenames “Black Cat” or “Chat Noir” — apparently depending upon the nationality of the speaker — during his work with a Resistance group in occupied France.
MARVEL: “The Black Cat” is Felicia Hardy, a former cat burglar who is supposedly reformed.

Black Death
DC: Villain who fought the JLA a few years ago.
MARVEL: Two users; both villains.

Black Dragon
DC: In Legion of Super-Heroes continuity, Kirau Nezumi was a Japanese crimelord known as “Black Dragon”; his son is Val Armorr, Karate Kid.
MARVEL: “Black Dragon” is Chiantang, a villain (and a real dragon, though he can change into human form) who has fought Iron Fist and Black Panther in particular.

Black Halo
DC: Quentin Taylor, formerly known as “Omni”; a Wildstorm hero.
MARVEL: This alias has been used by Daimon Hellstrom.

Black Hand/The Black Hand/Blackhand
DC: “Blackhand” was a villain with a horribly burned hand who led a gang that fought Batman in a Golden Age story. One “Black Hand” was a Golden Age MLJ villain who fought Captain Flag several times, and a modern “Black Hand” is William Hand, villain.
MARVEL: “The Black Hand” was a Golden Age villain who fought Captain America.

Black Hawk/Blackhawk
DC: “Blackhawk” was the alias used by the leader of the WWII fighter squadron collectively known as “the Blackhawks.” He was a Quality character in the Golden Age; later ended up at DC. His real name was originally “Bart Hawk,” but later was retconned as “Janos Prohaska.”
MARVEL: In “Mystic Comics #2,” in a story set in the year 2300, there was a villain who used this alias, either with or without a space in the middle. (At least one online resource indicates it may have been lettered both ways in different word balloons in the same Golden Age story, but I don’t know that for sure.)

Black Jack/Blackjack
DC: “Black Jack” was a pirate captain who fought the Golden Age Aquaman. Another “Black Jack” was a Golden Age MLJ hero. Later, “Blackjack” was a villain who clashed with Chris King and Vicky Grant in their “Dial H for Hero” days.
MARVEL: At least four users, three of whom spell it as one word.

Black Knight/The Black Knight
DC: In the Golden Age, Johnny Quick fought a “Black Knight” that turned out to be a robot controlled by a crook named Sam Kirby. Another Golden Age villain used “The Black Knight when fighting MLJ’s Steel Sterling. According to a retcon published long after WWII, another “The Black Knight” was a Nazi villain (apparently surnamed “Von Stauffen”) who fought the Unknown Soldier. In the Silver Age, another “The Black Knight” was Perry White, posing as an armored villain from King Arthur’s era whose “magic sword” could slice into Superman’s otherwise invulnerable body. “Black Knight” was also used within the Checkmate organization before they changed their system of codenames again; the only Checkmate employee known to have used this particular codename/title was Sasha Bordeaux, who later rose to be “Black Queen.”
MARVEL: Many users; probably the most famous is Dane Whitman, hero.

Black King
DC: Originally, senior executives of the Checkmate organization could have the codename/title of “King,” but somewhere along the line they switched to having a “Black King” and a “White King” in their revised command structure. As far as I can tell, Maxwell Lord was the first person at Checkmate to use “Black King”; he was killed by Wonder Woman and was eventually replaced in that slot by Talib Beni Khalid.
MARVEL: Codename/title given to high-ranking members of the Inner Circle of the Hellfire Club. Sebastian Shaw is the character who is best-known by that name; he has moved in and out of that role a few times in the decades since his debut.

Black Queen/The Black Queen
DC: Olga Romanoff, “The Black Queen,” was a Golden Age villainess who fought The Shining Knight. More recently, since Checkmate started using “Black Queen” as a codename/title for a high-ranking woman, there have been at least two users. The second is Sasha Bordeaux.
MARVEL: Codename/title given to various Hellfire Club members. The character who has used that title in the most stories is the immortal sorceress also known as Selene, although we first saw it used by a brainwashed Phoenix (putatively Jean Grey at the time) in the “Dark Phoenix Saga).

Black Patch
DC: Villain who fought Batman and Robin in one Silver Age story.
MARVEL: Pirate who appeared in a single Golden Age story; he was working as an agent of the criminal mastermind Isbisa.

Black Phantom
DC: Villain who fought The Atom (Ray Palmer) in a Silver Age story.
MARVEL: Golden Age villain who fought Namor and died.

Black Racer
DC: Supernatural entity who skis around collecting souls of dying people.
MARVEL: Villain; member of the Serpent Society.

The Black Rider
DC: Golden Age villain who fought the JSA.
MARVEL: Two Old West characters each used this alias; apparently no other connection between them?

Black Roger
DC: Golden Age Quality hero.
MARVEL: Apparently another alias or nickname for a villain also known as “Dark Roger” — he fought Starfox.

The Black Shadow
DC: Villain who only appeared in one Silver Age Lois Lane story.
MARVEL: A creature of pure energy which, like its adversary “The White Shadow,” was generated (but not controlled) by a Chinese mutant; their clashes caused great destruction until the mutant finally ended that problem by deliberately impaling his body on Wolverine’s claws; the Black and White Shadows have not been seen since. There is also a reference on marvunapp.com to a god or demon of this name which existed way back in “the pre-cataclysmic era.”

Black Snake/Blacksnake
DC: “Blacksnake” is a villain; as a member of the Micro Squad, he killed Adam Cray (the third Atom) while mistakenly thinking Cray was Ray Palmer (the second Atom) in disguise.
MARVEL: “Black Snake” was a Golden Age villain who fought Namor.

Black Thorn/Blackthorn
DC: Two users of “Black Thorn.” First: Golden Age Fawcett villain who fought Mister Scarlet. Second: Elizabeth Thorne, a vigilante who joined Checkmate for awhile.
MARVEL: “Black Thorn” is a member of the Shi’ar Imperial Guard. Two users of “Blackthorn”: One was an alternate reality’s version of the hero Hawkeye, and the other was Aline Pagrovna, member of Strikeforce: Morituri; dead.

Black Widow
DC: Three users; all Golden Age characters. One was a woman named Princess Hellene, listed in online resources as “Black Widow,” who once fought the original Flash (Jay Garrick) and then died. Quality used this name for two villainesses (apparently not connected). One fought Plastic Man; one fought the Blackhawks.
MARVEL: At least three; the best-known (although not the first) is Natasha Romanoff, who received this codename when she worked for the KGB and hung on to it after she defected.

The Black Witch
DC: Three Golden Age villainesses used this name. One tangled with Fawcett’s Ibis the Invincible; the other two were Quality characters who tangled with Madam Fatal and Dollman. Recently, during the “Final Crisis: Legion of 3 Worlds” mini, Mysa Nal (long known as “The White Witch” in the original Legion of Super-Heroes continuity) was transformed into “The Black Witch” (still heroic, though).
MARVEL: Alias used by a lawyer named Feritt who fought Captain America in one Golden Age story and died at the end of it.

Black X/Blacque X
DC: “Black X” was the codename of a Golden Age Quality character who worked as a spy for the USA; he also used the name of “Richard Spencer,” which may or may not have been his real one.
MARVEL: “Blacque X” is the name preferred by a young black Canadian who is the great-grandson of Rutherford Princeton, aka Centennial. (We don’t know Blacque X’s original full name, but his first name was Malcolm.)

Blackbeard/Black Beard
DC: At least two users of “Blackbeard”; both Golden Age villains. One fought the Blackhawks in a Quality story — and died. The other was the leader of a pirate crew; his sole appearance seems to have been in “Batman #4.” “Black Beard” was a Golden Age MLJ villain who fought The Black Hood.
MARVEL: “Blackbeard” led a group of “air pirates” who fought Miss America in a Golden Age story; apparently Blackbeard and his crew all died in that same story.

Blackbird/Blackbyrd
DC: “Blackbird” is Nathaniel Blackbird, a member of Wetworks in the Wildstorm universe.
MARVEL: Three users of “Blackbird”; most notable is Heather O’Gara, a villainess formerly known as “Jackdaw” before she became a member of Superia’s Femizons under this new name. Also, “Blackbyrd” is used to refer to Nathaniel Alexander Byrd, a private investigator based in Harlem.

Blackout
DC: Golden Age Quality villain; a Nazi agent who fought the original Uncle Sam.
MARVEL: Two villains.

Blacksmith/Blaquesmith
DC: “Blacksmith” is Amunet Black, a Flash villain.
MARVEL: “Blaquesmith” was one of Cable’s mentors in the alternate future timeline where he grew up. A second character later impersonated the first “Blaquesmith.”

Blackwing
DC: Charlie Bullock, rookie superhero in the Gotham City of the Pre-COIE Earth-2; a shameless imitator of the Golden Age Batman.
MARVEL: Two users; both villains.

Blade/The Blade
DC: Two users of “The Blade.” One fought the Golden Age Tarantula. The other was a clone-slave of a villain known as “The Master.”
MARVEL: A few users of “Blade” — the most famous is a hero named Eric Brooks; the African-American daywalker who spends most of his time killing evil vampires.

Blaze/The Blaze
DC: At least two users of “Blaze”; the more famous is a demonic villainess who has given Superman some very bad times; she was eventually revealed to be the half-demon daughter of the wizard Shazam. There was also a Golden Age villain called “The Blaze” who fought Green Arrow.
MARVEL: The name has been used at least two or three times; one “Blaze” was an “imaginary villain” created by three people trying to prove they were clever enough to fool Spider-Man, but then Spidey persuaded Johnny Storm to pose as “the real Blaze” in order to turn the joke around.

Blind Faith
DC: Villainess; part of the Aryan Brigade.
MARVEL: Two users. One was Alexei Garnoff, mutant member of Siberforce. The other was an Ultraverse character.

Blindside
DC: Two users; one is a member of Relative Heroes.
MARVEL: At least three users, all pretty obscure. (In addition: A note at marvunapp.com suggests that this name may have been used occasionally by a New Universe character also known as “Blindspot” — but I don’t know the details; perhaps there was a one-time typographical error which meant nothing?)

Blindspot
DC: Mercenary whose suit lets him turn invisible.
MARVEL: At least two.

Blink
DC: Temporary “Dial H for Hero” identity of Craig.
MARVEL: Clarice Ferguson of the Exiles.

Bliss
DC: Nicole Callahan, member of Wildstorm’s DV8.
MARVEL: At least three users; one is a 2099 character.

Blitz
DC: Two users. First: A Nazi villain who fought the Golden Age Wonder Woman. Second: a Wildstorm hero; member of Stormwatch; killed in action after a brief career.
MARVEL: Jaime Zimmerman, villain; member of the New Enforcers. There was also a “Blitz” who was part of a group called “The Zoo” in the Marvel UK “Gun Runner” series; that character quickly died.

Blitzkrieg
DC: Villainess who debuted in the “Catwoman” title in 2007. She wears a costume obviously inspired by that of the deceased Nazi villain Baron Blitzkrieg, but it is not clear if she ever had any close connection to the Baron or is simply an admirer whom he never met.
MARVEL: Franz Mittelstadt was a lightning-powered German hero; he was murdered.

Blizzard
DC: Two users. First: A villain, ruler of a place called “Iceberg Land,” who fought the Golden Age Wonder Woman. Second: Temporary villainous “Dial H for Hero” identity of Lisa Davis, but only in Pre-Crisis continuity.
MARVEL: Several, usually villains. The second user, Donny Gill, has recently tried to turn over a new leaf with the Thunderbolts.

Blockade
DC: One of the Point Men.
MARVEL: Three users.

Blockbuster
DC: Mark Desmond, now dead. Then his brother Roland, a Nightwing villain for a long time, now also dead.
MARVEL: At least three. The third was one of the Marauders; he participated in the Mutant Massacre and was killed by Thor; and was subsequently cloned by Mister Sinister.

Bloc/Block/Blok
DC: “Blok,” member of the Pre-Zero Hour Legion of Super-Heroes. “Block” is a villain in “Kurt Busiek’s Astro City”; his partner is “Tackle.”
MARVEL: “Bloc” — a mercenary. “Blok” — a villain working for Mister X.

Bloodhound
DC: At least two.
MARVEL: At least two.

Bloodshed
DC: Villain, one of the “Dead Boys”; fought Lobo and died.
MARVEL: Two users; one an Ultraverse character.

Bloody Mary
DC: Villain; member of the Female Furies. Also: A Milestone character.
MARVEL: Two of them; one is evidently the alias of one of the personalities inside Typhoid Mary’s head.

Blowhard
DC: Codename or nickname used by a soldier who was part of the “original” Suicide Squad program of the WWII era (according to a retcon in the late 80s).
MARVEL: A mutant member of the Morlocks; dead.

Blue Beetle/Blue Beatle
DC: The Golden Age “Blue Beetle” is (I believe) in the public domain now, but two successors of his (both created by Charlton) belong to DC, and so does the fourth user, Jaime Reyes, a teenage “Blue Beetle” whom they created a few years ago.
MARVEL: “Blue Beatle” is the name of a parody of Ted Kord in one “What The–?” story.

Blue Streak
DC: One of the previous aliases of the speedster hero now known as “Max Mercury.”
MARVEL: Four users; one is a member of the A-Next team of the MC2 timeline.

Bluebeard
DC: Golden Age Fawcett villain who fought Mr. Scarlet and Pinky.
MARVEL: Villain who fought Moon Knight.

Blur/The Blur
DC: “The Blur” was a temporary “Dial H for Hero” identity of Jerry Feldon.
MARVEL: At least two. “Blur” was a member of DP7 in the New Universe (until he died). “The Blur” is Stanley Stewart, African-American speedster in the world of J. Michael Straczynski’s “Supreme Power” (Stanley is basically that timeline’s local equivalent of “The Whizzer” from other versions of “Squadron Supreme” continuity).

Boggart
DC: Rosemary Fields, a British heroine who debuted in one of the “Planet DC” annuals.
MARVEL: Robin Wise, a member of the training squad called “the Advocates” at the Xavier Institute; Rogue was supposed to be their regular advisor.

Bolt
DC: Larry Bolatinsky, assassin.
MARVEL: Chris Bradley, hero; dead.

Bombshell
DC: One “Bombshell” was a villain who only appeared in “Super Friends #3” and promptly got killed — along with 99 other supervillains — as part of another villain’s fiendish scheme. Later we met another — Amy Allen, villainess, who infiltrated the Teen Titans on behalf of Deathstroke the Terminator. I am told that after she was identified as a villain and sent to prison, she later rejoined the Titans, but I didn’t read that material and don’t claim to understand why they want to risk having her around.
MARVEL: Wendy Conrad, villainess; used to be one of the Death-Throws. “Bombshell” was also the alias of a heroine in the alternate timeline of “The Last Avengers Story.”

Boomerang/The Boomerang
DC: “The Boomerang” was a villain who fought the Golden Age Green Arrow.
MARVEL: “Boomerang” is Fred Myers, a longtime villain.

Bouncer
DC: At least four users.
MARVEL: “Bouncer” is a villain; one of the three brothers known as “the Howlers,” who served as part of “Gladiators.”

Bounty
DC: At least three. One was an evil entity who took control of Dawnstar in “Legion of Super-Heroes” continuity in the early 90s (this character was presumably erased from existence by the Post-Zero Hour Reboot of Legion continuity). One was a mercenary who fought Damage. The latest was a character in the “Emperor Joker” story arc.
MARVEL: Female mercenary who dated Ben Grimm for a bit in Chris Claremont’s run on the FF.

Bounty Hunter/The Bounty Hunter
DC: At least two users; apparently both used “the” at the start.
MARVEL: At least three users; I’m not sure about the use of “the” in their cases.

Bowman/The Bowman
DC: At least four users. One fought the Blackhawks in a single Silver Age story. One is a former superhero who is the father of White Feather, the archer member of the Inferior Five. One was a member of the Justifiers in the alternate timeline which the Extremists came from (after they had slaughtered all the other inhabitants, including Bowman). One was a member of the Maximums in a “Superboy/Batman” story arc; he was already dead before we met him; he was basically a thinly veiled knockoff of Marvel’s Hawkeye (a characteristic he probably shared with the deceased member of the Justifiers).
MARVEL: At least two. One was apparently a reincarnation of Sir Lancelot; the other is a member of the HYDRA Super-Agents.

Box/The Box
DC: In the continuity of “Kurt Busiek’s Astro City,” the second user of the heroic alias “Jack-in-the-Box” met some possible sons of his from alternate futures. One of them was a cyborg who called himself “The Box.”
MARVEL: Four characters have used “Box” in Alpha Flight continuity. One of them was an outright villain; the other three served as team members in this capacity for various lengths of time; the last of these users, Madison Jeffries, became the longest-running and probably best-known “Box.”

Brain/The Brain
DC: “Brain” (or “The Brain?”) was a Golden Age Quality villain who fought Doll Man. Over at DC, four other Golden Age villains were each known as “The Brain” and each fought one superhero apiece: Zatara, The Crimson Avenger, Green Arrow, and Superman. In the modern era, yet another “The Brain” is also a villain; leader of the Brotherhood of Evil.
MARVEL: Several users.

Brainchild/Brain-Child
DC: “Brainchild” was a telepathic hero; a member of Point Force; he died after being experimented on by the Dominators. He only appeared in a “Timber Wolf” miniseries published in the early 1990s; I don’t know if Brainchild (or Point Force in general) still exist in “modern” continuity.
MARVEL: “Brainchild” is a villain; one of the Savage Land Mutates. “Brain-Child” was Arnold Sutton from the Earth of the original Squadron Supreme; he appeared in just one old “Avengers” story.

Brainstorm
DC: Several users.
MARVEL: Insane villain who was manipulated into thinking he was just venting some frustration while dreaming.

Brass
DC: A member of “Metallik,” which was the group name for one of the other “Team Titans” teams from the alternate future timeline in which Lord Chaos (Donna Troy’s son) was the evil ruler of the world.
MARVEL: Three users.

Breakdown
DC: Holly Denton, Wildstorm character; a member of Gen 14 and later Gen 13 before her death. She also used the alias “Goo.”
MARVEL: Three users. One was a member of the Derangers; one is part of the Freakshow in the 2099 timeline; one is an Ultraverse character.

Brother Power
DC: I’m told that the title character (an animated mannequin) of the old series “Brother Power, the Geek” strongly preferred to just call himself “Brother Power” and resented it when other people kept calling him “the Geek.”
MARVEL: Achmed Korba, villain; fought Spider-Man in one story arc in the 70s; possibly died at the end of it.

Brute/Broot
DC: Several users of “Brute”; all pretty obscure, it seems. (The earliest may have been a Quality villain who fought Kid Eternity.) “Broot” is an Omega Man.
MARVEL: Several users of “Brute”, including an evil analog of Reed Richards from a place called “The High Evolutionary’s Counter-Earth.”

Bug/Bugg
DC: A Golden Age Fawcett villain called “The Bug” fought Spy Smasher. A villain called “Bug” in the 1980s was a partner of Byte. Another “Bug” in the 1990s was part of a “Black Ops” group which fought Steel (John Henry Irons). Another “Bug” was a member of the Maximums in a “Superman/Batman” story arc; he was a thinly veiled Spider-Man knockoff. There is also a user of “Bugg.”
MARVEL: “Bug” is a nonhuman hero who debuted as a member of the Micronauts in the Marvel comic books based on a line of action figures; however, this character was created by Marvel and they have continued to use him in new stories after their license for the Micronauts ended. (I am told that his heroic group is now known as “the Microns.”)

Bulldozer
DC: At least three. Most famously, this was the military nickname of Horace Eustace Canfield Nichols, who served with Sergeant Rock in Easy Company during WWII.
MARVEL: At least two; the more famous one is a villain, a regular member of the Wrecking Crew.

Bulletproof
DC: A Milestone character.
MARVEL: A codename used by the late Nathaniel Briggs when he was acting as a member of “Sentinel Squad O*N*E.”

Bull’s-Eye/Bulls-Eye/Bullseye
DC: “Bull’s-Eye” was a villain who fought the Golden Age Green Arrow in the old Pre-COIE continuity. At least one Silver Age story later established that the Golden Age villain (of Earth-Two in the Old Multiverse) must have had an Earth-One analog; the Earth-One Bull’s-Eye had trained the villain Slingshot. (Post-COIE, those two Bull’s-Eyes probably got merged together into one character in the modern continuity.) There was also a Silver Age Blackhawks story in which the heroes managed to discourage three former athletes (who were using the nicknames or aliases of “Bull’s-Eye,” “Target,” and “Ace”) from becoming career criminals.
MARVEL: “Bulls-Eye” was a Hydra assassin who had a single appearance in 1969; he killed Nick Fury (or so it seemed) in “Nick Fury, Agent of SHIELD #15″ — and then got killed himself by the end of that story. Later, the assassin “Bullseye” became a notorious Daredevil villain.

Note on the above: Three years ago, right after I posted my Second Draft, there was some disagreement regarding just how the Hydra assassin wrote his name. (“Bull’s Eye? Bull’s-Eye? Something else?”) A couple of sources have assured me he used “Bulls-Eye” as his alias throughout that story, so that’s what I’m going with until further notice. Near as I can tell, however, that issue has never been reprinted as part of any TPB, and I don’t feel like coughing up the money to buy a 41-year-old comic book just to check on some punctuation in the dialogue, so it’s awfully hard to be sure. Some online resources have that assassin’s alias punctuated in other ways — and in 2007, when I was researching the point, I found multiple instances online where people were offering copies of the Hydra assassin’s only appearance for sale on their websites with such commentary as “The First Appearance of Bullseye the Assassin!” or words to that effect. Clearly they either mistakenly believed, or else desperately hoped their unsuspecting customers would mistakenly believe, that the assasin on the cover of that comic is the same guy (in a different costume) as the “Bullseye” who has killed two of Daredevil’s old girlfriends: Elektra Natchios and Karen Page.

Burnout
DC: Robert “Bobby” Lane of Wildstorm’s original Gen13 lineup.
MARVEL: Alias for two members of the Mutant Liberation Front in succession; both dead.

Burst
DC: One of the greatest heroes of the planet Thordia.
MARVEL: Genoshan mutate who died in the service of Exodus.

Bushmaster/The Bushmaster
DC: “The Bushmaster” was a Golden Age villain who fought Alan Scott (Green Lantern). Another “The Bushmaster” fought the Earth-One Wonder Woman. Later came “Bushmaster” — Bernal Rojas, hero, member of the Global Guardians; dead.
MARVEL: Two brothers, both villains, have used “Bushmaster.” John McIver (dead), followed by Quincy McIver (longtime member of the Serpent Society).

Butcher/The Butcher
DC: Codename or nickname used by a Nazi villain who fought the Blackhawks in a Golden Age Quality story. Another “The Butcher” fought the Earth-One Superman in a 1978 comic book and hasn’t been heard from since. “Butcher” was also a nickname or alias used by a hit man who tangled with Nemesis (Tom Tresser) in the early 1980s.
MARVEL: Apparently three users.

Buzz/The Buzz
DC: Marcus Gaius, citizen of the old Roman Empire, sold his soul and became a demon known as “Buzz” for the next couple of millennia until Supergirl (the Post-COIE Linda Danvers) started having a redeeming influence on him.
MARVEL: “The Buzz” is a teenage superhero of the MC2 timeline.

Buzzard
DC: Alias used by a Nazi fighter ace who fought the Blackhawks. Also used by a villain who once fought “The Mighty Crusaders” (a collection of Archie heroes) in the 1980s.
MARVEL: Alias of a villain who appeared just once, as one of the “Animen” who fought the Scarlet Spider in the mid-90s. (This group of “Animen” had no connection to the better-known villainous group “The Ani-Men”; the latter usually has members with such names as “Bird-Man” and “Cat-Man.”)

Byte
DC: Blythe Bonner, villainess; partner of The Bug (Buck Bonner).
MARVEL: Curtis Vogel, villain; member of the Bacillicons.

Cadaver/Kadaver
DC: “Kadaver” was a villain who fought Batman.
MARVEL: At least three characters have used “Cadaver.”

Cain/Cane/Kaine
DC: One “Cain” is a villain who was part of the New Order; may have only appeared in the JSA miniseries of the early 90s. “Cain” is also the working name of David Cain, high-priced assassin. (Note: Some stories have suggested that the “Cain” of “House of Mystery” is DC’s take on the Biblical Cain who killed Abel — if so, he is a “public domain” character, but I’m not sure of his canonical status.)
MARVEL: “Kaine” is an evil Spider-Man clone. “Cane” was an assassin who once fought The Punisher — it will probably shock you speechless to hear that Cane is no longer among the living.

Calcium
DC: One of the second (and evil) team of Metal Men. Destroyed.
MARVEL: Presumably one of the Elements of Doom.

Calculator/The Calculator
DC: “The Calculator” is Noah Kuttler, villain.
MARVEL: “Calculator” was Kwong Dae, a character in “NFL Superpro.”

Caliber/Kaliber
DC: “Caliber” is a villain; member of Team Turmoil. “Kaliber” was introduced as “a juvenile delinquent from Qward” when he debuted in “Superboy and the Ravers #1.” (To be fair, I must point that that by Qwardian standards, “juvenile delinquent” meant he had heroic tendencies.)
MARVEL: “Caliber” is a villain who fought Alpha Flight.

Cannonball
DC: Military nickname of Horace Calhoon, who was second-in-command of Tomahawk’s Rangers during the Revolutionary War.
MARVEL: Sam Guthrie, hero.

Capricorn
DC: Villain who fought Superman and Batman in a single story in the 1970s. He died at the end of that story, but the heroes didn’t realize that.
MARVEL: Several villainous Capricorns have served with some version of the “Zodiac” team at different times.

Captain Marvel
DC: Billy Batson (usually). The name was also used by Freddy Freeman as a grown man in the alternate future timeline of the “Titans Tomorrow” stories.
MARVEL: Several users; the first was Mar-Vell of the Kree (now dead), and both a son and a daughter of Mar-Vell have subsequently used the name (as have a few others).

Captain Strong
DC: Horatio Strong, a Silver Age knockoff of the “Popeye the Sailor Man” concept.
MARVEL: Not a masked crimefighter; but he was a Golden Age action hero who got exactly one appearance in “Daring Mystery Comics #3″ in 1940. Hasn’t been heard from since.

Captain Suicide
DC: Villain who fought the Blackhawks in one Golden Age Quality story; he commanded a “Phantom Squadron”; he died in his first appearance.
MARVEL: A Japanese officer who fought The Destroyer in a Golden Age story.

Captain Tiger/Captain Tyger
DC: “Captain Tiger” was a pirate-themed villain who fought the original Teen Titans.
MARVEL: “Captain Tyger” was a French nobleman in the 17th Century who had a career as a pirate for awhile.

Captain Wonder
DC: Fought Wonder Woman in the Pre-COIE, Earth-One continuity. He was a sort of hybrid character; it turned out the Pre-COIE Doctor Psycho was controlling a subconscious image of how Steve Trevor liked to imagine himself.
MARVEL: Jeff Jordan, Golden Age hero.

Cardinal
DC: Temporary “Dial H for Hero” alias of Vicky Grant.
MARVEL: Member of I.C.O.N., an evil conspiracy which once clashed with The Frankenstein Monster; this man apparently died in an explosion (but I gather his death was never confirmed). A later “Cardinal” fought the New Warriors and served with The Crimson Cowl’s Masters of Evil, but later changed his alias to “Harrier” when Hawkeye convinced him to join a new Thunderbolts team.

Carnage
DC: Villain who fought the Blackhawks in one Golden Age Quality story (and died).
MARVEL: Cletus Kassady, villain, uses this alias when bonded with an “offspawn” of the Venom symbiote. The Carnage symbiote also possessed John Jameson on one occasion, causing him to use the same alias, but that didn’t last.

Carnivore
DC: Evil entity who fought the “Supergirl” who was actually a merger of “Matrix” and the Post-COIE “Linda Danvers.”
MARVEL: Two users. One was Dick Chalker, villain; one is Count Andreas Zorba, of the Examplars.

Cascade
DC: Two users. Sujatmi Sunowaparti, heroine; an Indonesian member of the Global Guardians. Rhian Douglas, leader of Sovereign Seven.
MARVEL: Ross Kincaid, an ally of Alpha Flight.

Note from the Fourth Draft: I had Ross Kincaid on a previous Draft of this List. Then I dropped him from the Third Draft because — so far as I knew at the time — he had never appeared in any published comic book; only in a roleplaying game module. Since then, I have been told that he did get referenced at least once in OHOTMU. After I verified this, I decided: “Okay, an issue of OHOTMU may be awfully short on dialogue, but it’s still a comic book, and that’s all my homebrewed rules require in a candidate for this list!”

Cassiopeia
DC: Name used by a member of Red Trinity; a Soviet speedster trio that met Flash (Wally West) in the late 80s and eventually defected to the USA. Cassiopeia died in the mid-90s.
MARVEL: Member of the Pantheon; daughter of Perseus; appeared in several Hulk stories in the 1990s.

Cat/The Cat
DC: “The Cat” was the first alias used by Selina Kyle (better known as Catwoman); at least in the Golden Age continuity. Another villainess of this name fought the Golden Age Green Arrow. A Japanese agent of this name fought Judomaster during WWII (according to his Silver Age Charlton stories).
MARVEL: “The Cat” was a costumed identity for Greer Grant before her physical transformation into “Tigra.” “Cat” or “The Cat” have also been used by several other beings, including Shen Kuei, a martial artist whose abilities rival those of Shang-Chi.

Catalyst
DC: Villain; last seen working as an assassin for Vandal Savage.
MARVEL: Villain; used to work for HYDRA.

Catapult
DC: Member of the demon-hunting group known as the Hell-Enders.
MARVEL: Hero; member of the original “Exiles” team of the Ultraverse; died soon after he debuted.

Cathode
DC: Villainess; member of a group called “the Network” which fought Superman and Batman in “World’s Finest Comics” in the early 80s; they may not exist in Post-COIE continuity.
MARVEL: Villainess with a long-distance teleporting ray who once used it to steal the Statue of Liberty and thus ended up fighting Silver Sable, her Wild Pack, and their temporary ally Deathlok. She hasn’t been heard from since.

Catman/Cat-Man/The Cat-Man
DC: “Catman” is Tom Blake, a longtime Batman villain, supposedly trying to redeem himself nowadays. I believe that he — or his Golden Age version, anyway — originally used a hyphen in the middle, but he’s long since abandoned that punctuation (as did “Bat-Man” himself, come to think of it!). There was also a Golden Age Fawcett villain called “Catman” who fought Ibis, and a Silver Age “The Cat-Man” who once fought the Blackhawks.
MARVEL: At least two villains using the name “Cat-Man” have served with versions of the Ani-Men. They both died.

Catseye
DC: Japanese villain who fought the Suicide Squad.
MARVEL: One of Emma Frost’s Hellions; dead.

Catspaw/Cat’s Paw
DC: “Catspaw” is April Dumaka, heroine in the far future in at least two versions of “Legion of Super-Heroes” continuity.
MARVEL: “Cat’s Paw” was the alias of a foreign spy who fought the Golden Age hero known as “The Angel.”

Catwoman/Cat Woman
DC: “Catwoman” is Selina Kyle, sometimes a hero, sometimes a villain.
MARVEL: “Cat Woman” was a Golden Age villain, leader of a gang of thieves, who fought Captain America and then died at the end of her first appearance.

Cauldron
DC: Two or three of them. One is an obscure Golden Age Quality villain, possibly demonic, who fought Plastic Man a few times. The more recent user of the alias is a robot, originally designed at Project Cadmus, which was forced to fight Superman a couple of times in the 1990s. (I’m not clear on whether Superman’s second fight with “Cauldron” was with the same robot after it was rebuilt, or with a new robot built from much the same design.)
MARVEL: A villain.

Celery
DC: An alien from the planet Salata; his people are plant-derived; he once met Captain Marvel in the 1970s “Shazam!” series.
MARVEL: One of the Warpies; specifically part of a smaller group called “the Advocates.”

Centurion/The Centurion
DC: “Centurion” is one of the Dogs of War who fought the Doom Patrol. “The Centurion” is a villain who usually fought Moon Maiden.
MARVEL: “Centurion” is a villain who fought Ms. Marvel. There are also suggestions that this word alone may have been used as a codename for some members of the Nova Corps, but I’m not sure of the details.

Chain Lightning
DC: Apparently this name has been used by both the Pre-COIE and Post-COIE versions of a female character with multiple personality disorder who sometimes fights Captain Marvel Jr.
MARVEL: Two users, both obscure.

Chairman
DC: The masked leader of an evil organization known as “the Council” which clashed with Supergirl — meaning Kara Zor-El, the Pre-COIE version — in the early 80s. I have no idea whether Chairman, and/or the Council, are still around in modern continuity.
MARVEL: There was a Chairman who was a villain in an old Hostess Twinkies ad in the comic books. (It occurs to me that I have no idea whether those old Hostess ads are presumed to be “in continuity” or not.) There was also a Chairman in the 2099 timeline; a villain who was in command of the Ratpack.

Chameleon/The Chameleon
DC: “The Chameleon” was a villain who fought the Blackhawks. Another “The Chameleon” fought the Golden Age Superman. Much later, “Chameleon” was the alias used by the Post-Zero Hour rebooted version of Reep Daggle, the “Legion of Super-Heroes” member whose Pre-Zero Hour alias was “Chameleon Boy.”
MARVEL: “The Chameleon” was the first supervillain Spider-Man ever fought.

Champion
DC: At least four users. First: the wizard Shazam. Second: a guy who initially posed as a superhero in the mid-80s but turned out to be a villain; ended up fighting the partnership of Green Arrow (Ollie) and Black Canary (the second one). Third: M’onel. Fourth: Herakles when he was masquerading as a run-of-the-mill modern superhero (I choose to mention Herakles to be complete; since he’s a mythological figure in the public domain, I could just ignore him).
MARVEL: Another alias used by a Wolverine villain also known as “Mister X.”

Chance
DC: Villain who only existed as part of an illusionary scenario created by the Guardians of the Universe as a test for Hal Jordan. There was also a “Chance” who fought the Golden Age Hawkman; his name came from the fact that he ran a crooked gambling den and loved to calculate odds.
MARVEL: At least three users; probably the best-known is Nicholas Powell, a mercenary villain who loves to gamble and therefore prefers his contracts to be in the form of bets — if he achieves the stated objective (such as stealing something or killing somebody), then he wins the money.

Changeling
DC: At least five users, beginning with a Golden Age Villain who fought the original Flash, and ending with Garfield Logan (who has since reverted to his earlier alias of “Beast Boy”).
MARVEL: The former villain who died while impersonating Professor X (at the Prof’s request).

Chango
DC: Golden Age Quality villain who fought Midnight.
MARVEL: Villain; member of “the Santerians” who fought Daredevil. (“Chango” is named after an “orisha” (or god) of the Yoruba religion.)

Chaos/Khaos
DC: “Khaos” was a villain who fought Shade the Changing Man, Pre-COIE.
MARVEL: At least three users of “Chaos.” (Please note that I am not even counting the cosmic entity who seems to be the personification of chaos in the MU — he is usually called “Lord Chaos,” a name which has also been used at both companies, as you will see further down.)

Cheetah
DC: At least four; three women and a man who have all been Wonder Woman villains in one version of her continuity or another.
MARVEL: Esteban Carracus, villain; dead.

Cherub/The Cherub
DC: “Cherub” is one of the DNAngels.
MARVEL: “The Cherub” was a Golden Age villain who fought Miss America.

Chill
DC: Leader of the New Rogues until he was killed by Captain Cold.
MARVEL: At least four; one is native to the 2099 timeline and another to the New Universe.

Chimera
DC: Several users.
MARVEL: Several users. One was a Deviant Skrull who died in the “Marvel: The Lost Generation” mini.

Chunk
DC: Chester P. Runk, brilliant physicist who fought Flash (Wally West) but later became one of his closest friends.
MARVEL: Villain; one of the Outriders.

Cinder
DC: Carla Moretti, villainess; Deathstroke recruited her for his new mercenary team called “The Titans.”
MARVEL: “Cinder” was a villain who died in his first appearance in 1992 (“Cage #9″); hasn’t been heard from again.

Circe
DC: Several users. One was a Golden Age Quality villainess who fought Midnight; as far as I know, she was not supposed to be the mythological Circe. Another was a woman who fought the Silver Age Superman; she claimed to be a descendant of the original Circe. Also in the Silver Age, Lois Lane met a female magician called “Circe” who seemed very different from the one I just mentioned. Also, in his first story arc in the mid-80s, the villain Black Mask (Roman Sionis) had a girlfriend called Circe — I think that was the only name she ever used; it might have been her real first name. All of these women I mention were distinct from DC’s version of the “public domain Circe of Greek myth” who has often pestered Wonder Woman, both Pre- and Post-COIE.
MARVEL: In the main MU continuity (i.e. the 616 timeline), Sersi the Eternal is supposed to have been the primary inspiration for the mention of a sorceress called “Circe” in Greek myth, due to an incident in which she had turned a bunch of Odysseus’s rowdy Achaean thugs into pigs as a disciplinary measure. Whether this means she should be considered “just Marvel’s spin on a public domain character” or still qualifies as “an original Marvel character with a differently-spelled name who just happened to help inspire one small portion of the poet Homer’s ‘The Odyssey’” is arguable. However, there is at least one other “Circe” in Marvel continuity, so the name qualifies for this list regardless of how you want to classify Sersi the Eternal.

Claw/Klaw
DC: Several users of “Claw.”
MARVEL: “Klaw” (Ulysses Klaw) is a villain. At least three other characters have used “Claw.”

Claymore
DC: Clayton H. Maure, a member of Wetworks in the Wildstorm timeline.
MARVEL: Two users; both died in their first appearances; one was part of S.H.E. (Super Heroes of Europe).

Cleric/The Cleric
DC: “The Cleric” was an alien missionary who visited Krypton about 200,000 years ago and then carried the Eradicator around with him for all that time until he finally encountered, and gave it to, Kal-El (Superman). After doing so, The Cleric soon died.
MARVEL: A character using the codename “Cleric” died at Hull House.

Cloak/The Cloak
DC: “The Cloak” fought Shade the Changing Man, Pre-COIE.
MARVEL: “Cloak” is Tyrone Johnson, hero; partner of Dagger.

Cloud/The Cloud
DC: “The Cloud” was a Golden Age villain who fought Doctor Mid-Nite. Another “The Cloud” was a temporary “Dial H for Hero” identity of Mark.
MARVEL: “Cloud” was a Defender in the mid-1980s.

The Clown
DC: Lyle Corley, a Flash villain; dead. Also used by a Golden Age Archie villain who fought The Hangman.
MARVEL: One of these has served in the Ringmaster’s Circus of Crime. Another was a member of the Crazy Gang in the 1980s (and maybe he still is, for all I know).

Cobalt/Kobalt
DC: “Cobalt” was a robot, a member of the third “Metal Men” team; eventually went rogue and was destroyed. “Kobalt” is a Milestone character.
MARVEL: “Cobalt” is one of the Elements of Doom

Cobra/Cobrah/Kobra/Kohbra
DC: “Cobra” was a Golden Age Quality villain who fought Manhunter (Dan Richards); worked for the Nazis. Another “Cobra” was a female spy who tangled with the Blackhawks. Another Golden Age villain called “The Cobra” fought John Zatara. For many years, “Kobra” was Jeffrey Franklin Burr, villain; he is now dead. Recently his brother, Jason Burr, has been setting himself up as the new “Kobra.”
MARVEL: Several users of “Cobra,” including at least two Golden Age villains, but the most notable is Klaus Voorhees, a villain who later upgraded himself to “King Cobra.” According to Marvunapp.com, the name of one of the New Men of the High Evolutionary’s Counter-Earth has been spelled as both “Cobrah” and “Kohbra” at different times.

Cobweb
DC: Heroine created by Alan Moore as part of his “America’s Best Comics” line; now part of the ABC imprint at DC.
MARVEL: Two users; one was an enemy of Sleepwalker.

Coil/The Coil
DC: “The Coil” is a villain who fought Chris King and Vicki Grant in their “Dial H for Hero” days. “Coil” is a Milestone character who fought Static in the 1990s.
MARVEL: “Coil” is a villainess; one of the Twisted Sisters in Shadow City.

The Collector
DC: In the early Silver Age, Batman tangled with a gang boss of this name. Later in the Silver Age, another user of this name fought a Batman/Hawkman teamup. Years later, another villain used this name in a late-70s Superman story. Near as I can tell, none of those three men have ever been heard from again after their respective first appearances.
MARVEL: One of the Elders of the Universe. I’m told there was also a human thief who used this alias when he appeared in “Wolverine/Doop #1.”

Colosso
DC: A robot that fought Ralph Hardy (the Archie hero “The Jaguar” at the time) in the 1960s.
MARVEL: Three users.

Comanche
DC: A member of Stormwatch in the Wildstorm timeline.
MARVEL: Archer villain; partner of Shades.

Comet/The Comet
DC: “Comet” was an “Earth-Born Angel of Love” in Peter David’s “Supergirl” title. I’ve also been told that the Silver Age hero previously known as “Captain Comet” later started using just plain “Comet” as an alias. And Rob Connors, “The Comet,” was an Archie character who apparently will soon be integrated into the DCU if he hasn’t been already (I haven’t been paying attention). “Comet” was also the name of a costumed criminal who worked as part of a group called “the Sun and his satellites” in a single Golden Age story; they were fighting Starman (Ted Kord) at the time.
MARVEL: “The Comet” was Harris Moore, created in the 1970s as a superhero with a retconned career from the 1950s; now dead.

Note on the above: I am aware that Peter David’s version of “Comet” was a takeoff from the Silver Age character who was called “Comet the Super-Horse.” However, I am working on the theory that in the Silver Age guy’s case, his full heroic alias was “Comet the Super-Horse,” so I don’t count him as being another duplication of the name “Comet.”

Computo
DC: A villainous artificial intelligence who fought the Legion of Super-Heroes in their original continuity. Also: Danielle Foccart, a heroine, later swiped the name for herself (still in the original Legion continuity).
MARVEL: An artificial intelligence created by Quasimodo.

Confessor/The Confessor
DC: There was a “Confessor” who worked for Brother Blood in the 1980s. “The Confessor” has been used successively by two heroes in “Kurt Busiek’s Astro City.”
MARVEL: Russian mercenary who fought Maverick.

The Conquistador
DC: Villain in the world of “Kurt Busiek’s Astro City”; he was formerly the hero known as “El Hombre.”
MARVEL: At least two villains have used this; the first died in a Silver Age X-Men story.

Controller
DC: Villain who fought Adrian Chase when he was The Vigilante with his own title in the mid-1980s.
MARVEL: Basil Sandhurst, villain.

Conundrum
DC: A “Gotham City Sirens” villainess who fought the Riddler.
MARVEL: Mysterious villain who fought Peter Parker when he was using the identity of “Prodigy”; apparently hasn’t been heard from since.

Copper
DC: Feminine robot; became a new member of the Metal Men after “Infinite Crisis.”
MARVEL: One of the Elements of Doom.

Copperhead
DC: Villain; real name unknown.
MARVEL: At least three villains.

Copycat
DC: Gem Antonelli, member of Wildstorm’s DV8.
MARVEL: Vanessa Carlysle, villain, dead.

Corona
DC: Kako, an Inuit woman who is the mother of Aquaman’s son Koryak, took this name after she became a fire elemental.
MARVEL: At least four users.

Cossack
DC: At least two. One was a Russian robot who fought the Doom Patrol. The second is an alternate alias of the first “Dark Rider” of the DCU.
MARVEL: Russian terrorist who once fought Daredevil.

Crab
DC: Golden Age Quality villain who fought Plastic Man.
MARVEL: Member of an Atlantean gang called “the School.”

Crackerjack
DC: A hero in “Kurt Busiek’s Astro City.” Also a nickname or alias for a Honduran pickpocket (real name unknown) who was a sort of gopher for the team called the Seven Seconds in the “Thriller” series of the mid-80s.
MARVEL: A villain who appeared in the “Ghost Rider 2099″ series.

Crag/Krag/Kragg
DC: “Krag” is Pete Crannick, one of the “New Blood” heroes who debuted in the “Bloodlines” event in 1993.
MARVEL: “Crag” was a member of Alpha Prime, a team of three super-powered Savage Land residents trained by Heather Hudson – but I gather that team has never been heard from again since its debut story in an “Alpha Flight” annual in the 1980s. There are also two users of “Kragg”; one might have it as part of his real name (he fought Daredevil once, but we know precious little about him), but the other is an Earth elemental in the 2099 timeline, so I suspect that in his case “Kragg” was chosen to be a descriptive alias.

Cranky/Kranky
DC: “Cranky” was the only name — presumably a nickname/alias – ever provided for a bad guy who was the leader of a gang of crooks which fought Barry Allen in a single Silver Age story.
MARVEL: “Kranky” was the name used by a parody of the time-travelling villain “Kang” in at least one “What The–?” story.

Crawdaddy
DC: A sentient mutated crab in the future timeline of the original “Kamandi” series.
MARVEL: A mutated hillbilly farmer, member of a super-powered clan called “the HicksMen” which only appeared in one “What The–?” story.

Creeper/The Creeper
DC: Jack Ryder, hero, has intermittently appeared in stories as “The Creeper,” going back about 40 years now. I am told that a Vertigo miniseries a few years seemed to retcon in a “previous” Creeper, a woman named Madeline Benoir, active in the 1920s. There was also a Creeper in the “DC One Million” event, living in the year 85,271. Another “The Creeper” was a criminal in a Silver Age Lois Lane story; I believe he was published before all the others, but had no apparent connection to any of them.
MARVEL: “The Creeper” was an alias used by Ambassador Lissom, a funny-animal villain (I’m told — but I haven’t seen any images) who appeared and died in a single Golden Age story. “Creeper” was the alias used by a kid living in New York City a century ago; a super-powered member of a group known as the Street Arabs. He was killed in the same “Runaways” story arc in which he debuted.

Crime-Buster/Crimebuster
DC: “Crimebuster” was a Fawcett hero in the Golden Age. I don’t know that anyone has ever revived the character (or any “successor” with the same alias) in anything published by DC in recent decades.
MARVEL: Three users. The first was Frank Moore, son of a hero called The Comet; Frank is now dead and at least two other guys have tried to continue the role. (As near as I can tell from Wikipedia, two of the Marvel guys have spelled the name without a hyphen.)

Crimson
DC: Jodi Slayton, heroine; daughter of the first Backlash (Marc Slayton). She worked with Wildstorm’s Wildcore team for awhile, and has subsequently used the aliases of “Jet” and “Backlash.”
MARVEL: Villainess; member of a quasi-vampiric group called the Ravens; died fighting X-Factor.

The Crone
DC: “The Crone” was a Golden Age MLJ villainess who fought The Wizard.
MARVEL: At least two users, not counting “public domain” characters.

The Crooked Man
DC: “The Crooked Man” was J.J. Crook, a crimelord who appeared in the “Chain Gang War” series and apparently died at the end of it (but I hear the body was never found after the big explosion).
MARVEL: “The Crooked Man” was a crimelord who fought The Shroud.

Crossbones
DC: Nicholas Jones, member of Wildstorm’s Wetworks, dead.
MARVEL: Brock Lumlow, villain.

Crossbow
DC: Golden Age Quality villain who fought the Blackhawks.
MARVEL: Two users. One is a British assassin who fought Daredevil; one is an alternate future version of Blade (as in “Eric Brooks, the daywalker”).

Crow
DC: Golden Age Quality villain who fought The Spider. Also a Golden Age MLJ villain who fought The Hangman.
MARVEL: There is an intelligent talking crow, apparently called “Crow,” who had some conversations with Lord Pumpkin in the Ultraverse continuity of the 1990s.

Crucible
DC: A villain who debuted as one of many metahumans who were running wild in Bludhaven in the “Robin” title around the time of “Infinite Crisis.”
MARVEL: Two users; one is Byron Calley, villain; he was formerly “Burner,” a founding member of the second Brotherhood of Evil Mutants, which became Mutant Force, which became the Resistants.

Crusader
DC: Two, both heroes. First: Don Powers, hero, apparently appeared in a single issue of “Aquaman” in the 1970s. Second: Derek Bradbourne, who appeared in one story in the early 90s and also seems to have faded into obscurity.
MARVEL: Several users.

Crusher
DC: A villain who was once defeated by Bobo Bennetti.
MARVEL: Several users.

Cutthroat
DC: Villain who recently debuted as a Black Canary foe.
MARVEL: Daniel “Danny” Leighton, a former member of the Skeleton Crew.

Cyberion/Siberion
DC: “Cyberion” was used for awhile by Victor Stone before he reverted back to his usual alias of “Cyborg.”
MARVEL: “Siberion” is a villain, a member of the Peristrike Force; that group fought Darkhawk in the early 1990s and haven’t been heard from since.

Cyborg/The Cyborg/Psi-Borg
DC: “Cyborg” is the heroic alias normally used by Victor Stone. In the 1990s, the villain Hank Henshaw was often called “The Cyborg.”
MARVEL: Two villains have each used “Psi-Borg.” Captain America once fought an AIM assassin called “The Cyborg.”

Cyclone/Psi-Clone/Psyclone
DC: At least four users of “Cyclone.” One was a Golden Age Quality hero. One was briefly a villain, fighting the JLA in a single story in the 1970s. One was a temporary “Dial H for Hero” villainous identity of Nylor Truggs — retcon-erased by COIE. One is Maxine Hunkel, heroine; a granddaughter of Ma Hunkel, the Golden Age “Red Tornado.” Also: “Psi-Clone” was a temporary “Dial H for Hero” alias of Vicky Grant.
MARVEL: There have been at least three users of “Cyclone,” all villains; the first is dead. There is also a “Psyclone” in the 2099 timeline.

Cypher
DC: Three users; including Cameron Begay, formerly “Cypher” of the DEO and now better known as “Omni” of the “Relative Heroes.”
MARVEL: Two users. First: Doug Ramsey of the New Mutants, long dead. More recently, an African-American mutant girl has been using the same alias.

Dagger/The Dagger
DC: Ned Brann was a villain who used this name while fighting the Golden Age Batman. David Rennington used it while fighting Batman in the 1980s.
MARVEL: At least two users; the famous “Dagger” is Tandy Bowen, heroine; partner of Cloak.

Damage
DC: Grant Albert Emerson, hero.
MARVEL: Jaime Ortiz, a cyborg villain who fought Wolverine and The Punisher.

Damocles
DC: A WildStorm villain.
MARVEL: Eric Barlow used this name while leading a terrorist group which fought Thor; Eric was ultimately killed by his own brother.

Dark Angel
DC: First used by a Golden Age Fawcett villainess. Later used by another villainess who has caused a lot of trouble for Wonder Woman and Donna Troy.
MARVEL: Several users.

Dark Rider
DC: Two of them, both villains; the second claims to have killed the first.
MARVEL: Several of them.

Darkling
DC: Dora Keane, an Earth-S villainess who fought the Marvel Family in the early 80s. There was also an MLJ heroine who debuted in the 1980s; sadly, when last seen she had just been completely mind-wiped by the villain known as The Brain Emperor.
MARVEL: Henrique Manuel Gallante, member of Psionex.

Darkstar
DC: The first user was one of the clone-slaves created by “The Master” to fight Chris King and Vicki Grant in their “Dial H for Hero” days.” I believe this can also be used to address any member of the Darkstars, an intergalactic outfit that tried to replace the (then-defunct) Green Lantern Corps at one point.
MARVEL: Laynia Petrovna, Sasha Roerich, and Reena Stanicoff have each used “Darkstar.” Each has served with the Winter Guard, and each has been killed. Laynia, however, recently made a comeback to resume her role as the original Darkstar of the MU.

Darwin
DC: A Tarzan parody who worked with the Inferior Five.
MARVEL: A long-lost former X-Man.

Data
DC: Freddy Martin, member of the Seven Seconds in the “Thriller” series of the mid-1980s.
MARVEL: Name used by the Kymellian smartship belonging to Kofi Whitemane in a few Power Pack stories.

Dazzler/The Dazzler
DC: Two users. “The Dazzler” was Daniel Domino, a villain who fought The Fly (the Archie hero) in a story in 1960. Another “The Dazzler” was Ken Baldwin, a character who fought Hal Jordan in a story in 1966. (Neither of those Dazzlers has ever been heard from again.)
MARVEL: Three users; the most noteworthy is Alison Blaire, heroine.

The Deacon
DC: In the continuity of “Kurt Busiek’s Astro City,” “The Deacon” is Deke McManus, a crimelord who dresses as if he were a man of the cloth.
MARVEL: At least three users of “Deacon” or “The Deacon.”

Deadeye
DC: Alias or nickname of a criminal who once fought The Creeper (Jack Ryder). Also, in the timeframe between COIE and Zero Hour, we saw some Qwardians who were trying to be evil equivalents of various Justice League heroes; the counterpart of Green Arrow was called “Deadeye.”
MARVEL: Four users.

Deadline
DC: Mercenary villain.
MARVEL: Kishi Oramosha, villain.

Deadman/The Deadman
DC: “Deadman” is Boston Brand, a ghostly hero.
MARVEL: “The Deadman” is apparently another alias used by a magical entity who appeared in “Wolverine: Evilution” and who also likes to modestly call himself “The Saviour.”

Deadzone
DC: Jay Daniels, member of the S.T.A.R. Corps.
MARVEL: John DeZoan, vigilante who killed members of organized crime outfits.

Death
DC: The best-known user is one of the Endless. There was also a “Death” who was one of several villains modeled on Tarot cards; they fought the JLA in the 1970s.
MARVEL: The sister of Eternity; the cosmic entity whom Thanos is traditionally so obsessed with. Also the alias of various Horsemen of Apocalypse (including the characters better known as “Archangel” and “Wolverine” and “Gambit,” at different times).

The Death Dealer/Death-Dealer
DC: “The Death Dealer” was a Green Arrow villain who was recently killed by a new vigilante villainess, Cupid.
MARVEL: Two users of “Death-Dealer.” One is Li Ching-Lin, agent of Wang Yu-Seng/Fu Manchu. The other lives in an alternate future timeline, ca. A.D. 2020.

Death Masque/Deathmask
DC: “Death Masque” is a villain who fought Ray Terrill (the second hero to call himself “The Ray”) in the 1990s.
MARVEL: “Deathmask” was the first supervillain to fight The Night Man in the Ultraverse.

Deathgrip
DC: A terrorist who fought Aztek.
MARVEL: Two villains. One fought the original Captain Marvel of the MU (Mar-Vell) and died; one fought Dazzler and ended up comatose.

Deathwish
DC: A Milestone character.
MARVEL: An Ultraverse villain.

Decibel
DC: Villain who fought Chris King and Vicki Grant in their “Dial H for Hero” days.
MARVEL: According to a note on marvunapp.com, this may be an alternate alias of a villain better known as “Riot,” who is part of a group called “Heavy Mettle.”

Defender/The Defender
DC: At least two users of “The Defender.” One was Lex Luthor in a single Silver Age story; another was a villain who fought the Earth-One Superman just once in the 1970s.
MARVEL: Looks like three users; one was a Golden Age hero who was killed in the line of duty.

Delta
DC: Member of the Pantheon, a group which fought Superman and Batman in the Earth-One continuity of the early 1980s.
MARVEL: Two users, both robots; oddly enough, one is part of a robot team called “the Warzone” which was allegedly created by a group called “the Pantheon” (no relation to DC’s Pantheon with its own Delta).

The Demon
DC: Etrigan is frequently just called “The Demon.”
MARVEL: Several users; the first was a human magic-user, real name unknown, who fought Thor in the mid-60s.

Dervish/The Dervish
DC: “Dervish” is a villainess; she is (or used to be) part of the metahuman group called “the Jihad.” I’m also told that J’onn J’onnz used to call himself “The Dervish” when he was posing as a Turkish superhero.
MARVEL: Female mutant; member of a gang called “the Spikes” which appeared in “X-Treme X-Men.”

Desire
DC: One of the Endless.
MARVEL: Wife of the Dark Man in Asgard.

Destiny
DC: Two users. First: a mysterious Golden Age Quality hero; hasn’t been heard from since 1944. Second: one of the Endless.
MARVEL: Paul Destine, villain, dead. Irene Adler, villain and later part of Freedom Force (if there’s a difference?), dead.

The Destructor
DC: A villain who fought the Archie heroes Fly Man and The Shield in one Silver Age story.
MARVEL: Kerwin Korman, an agent of A.I.M., used this name while wearing a battlesuit of his own design.

Devastator
DC: Jack Snyder, villain; member of the Overmaster’s Cadre.
MARVEL: Two Russian heroes, Kirov Petrovna and Gregori Larionov, have successively used this alias. (Gregori took over after Kirov died.)

Diablo
DC: In the Silver Age there was a man called “Diablo” who worked as a henchman for the evil Dr. Dome. (I don’t know if “Diablo” was part of the henchman’s real name, or a nickname, or an alias to conceal his real name, or what, but I’m assuming “alias” until further notice.)
MARVEL: Evil alchemist who has fought the Fantastic Four on various occasions. The name has also been used by a couple of smoke-monsters.

Note: I am ignoring any users of “El Diablo” in this listing, on the theory that “El” is different from “The” for my purposes. However, as you scroll down you will see that both Marvel and DC have used that alias, as well!

Dinah Soar/Dyna-Soar
DC: “Dyna-Soar” was a temporary “Dial H for Hero” identity of Lori Morning in post-Zero Hour “Legion of Super-Heroes” continuity.
MARVEL: “Dinah Soar” was a founding member of the Great Lakes Avengers; now dead.

Disruptor/The Disruptor
DC: Three villains; looks like all have used “The Disruptor.” First: Samuel Epo, who fought The Creeper in the 1970s and never reappeared. Second: Michael Beldon, villain; son of “Brains” Beldon, a criminal mastermind. Third: Angelica, a teenage villain (member of the Terror Titans) who believed herself to be Michael Beldon’s long-lost daughter at the time she debuted — but it turned out she wasn’t. (She was killed by the second Clock King, the guy who had previously fed her that lie about her pedigree.)
MARVEL: At least two “Disruptors”; both villains; one of them is dead.

The Djinn/Jinn
DC: “The Djinn” is a villain; a member of the terrorist group called the Jihad which fought the Suicide Squad.
MARVEL: “Jinn” was the chief assassin working for Anton Lone (evil mastermind and father of the hero Solitaire) in the Ultraverse continuity; now dead.

Doc
DC: Two Omega Men from the planet Aello have successively used this as their working names.
MARVEL: At least three; one has only appeared in the timeline of “Earth X.”

Note: Of course zillions of other characters who are known as “Doctor (Whatever),” whether in civilian life or as a costumed alias, have frequently been called “Doc” for short by some of their acquaintances. However, while they may tolerate the use of that as an occasional nickname, those characters usually don’t embrace that monosyllable as their preferred alias by telling everyone they meet: “Just call me Doc.”

Doctor Destiny
DC: Three users. First, a Golden Age villain who fought the first Hourman. Second, a Golden Age Fawcett villain who fought Bulletman. Third, John Dee, one of the earliest supervillains to fight the JLA.
MARVEL: Two users; the first was a Golden Age villain who fought Captain America.

Doctor Doom/Doctor Doome
DC: “Dr. Doome” was an adversary of the original Seven Soldiers of Victory in the Golden Age. “Doctor Doom” was a master smuggler who fought Batman and Robin in a single story Golden Age story.
MARVEL: “Doctor Doom” (Victor Von Doom) is a villain.

Doctor Eternity
DC: Golden Age Fawcett villain who fought Captain Marvel Jr.
MARVEL: Golden Age villain who fought Captain America and Bucky.

Doctor Hurt
DC: Villain who has made Batman’s life miserable. There have been hints that he may be The Devil, or a man possessed by The Devil, which could mean he is merely a “public domain” character masquerading under a new alias, but I gather that this point has never been nailed down as solid fact, so I give him the benefit of the doubt by listing him here.
MARVEL: Villain who used to fight Nightraven; later, after being brought back from the dead, he renamed himself “Suture.”

Doctor Rocket
DC: A humorous character who only got very short stories (one page or less!) in the Silver Age.
MARVEL: Villain who fought She-Hulk; he was erased from history by the villain Clockwise.

Doctor Time/Doctor Tyme
DC: “Doctor Tyme” is a villain who fought the Doom Patrol in one Silver Age story.
MARVEL: “Doctor Time” is a villain who only appeared in an issue of “Spidey Super Stories.”

Doctor Voodoo
DC: Three users. First, a Golden Age Fawcett hero whose real name was Hal Carey. Second, a Golden Age Quality villain who fought Doll Man. Third, a villain who fought the original Batgirl (Barbara Gordon) in a few stories in the early 1980s; he hasn’t been heard from since.
MARVEL: Jericho Drumm recently took this as his new alias; for decades before that, he was the hero known as “Brother Voodoo.”

Dog/Dogg
DC: “Dogg” is a Milestone character.
MARVEL: At least two characters have used “Dog” as an alias.

Dollar Bill
DC: A hero in the 1940s in the world of “Watchmen”; he died in the line of duty.
MARVEL: Name commonly used by a young moviemaker who was frequently hanging out with the Defenders back around the 1970s. I understand that many years after his heyday, we belatedly learned that his real name was Aaron Tagma English, but I believe he never was caught calling himself anything but “Dollar Bill” in the old days.

Dome/The Dome
DC: “The Dome” was a Golden Age Fawcett villain who fought Bulletman and Bulletgirl. Another “The Dome” was a villain who fought Brane Taylor, the Batman of the year A.D. 3051, according to a story published in the 1950s.
MARVEL: “Dome” was the alias or nickname of a member of a Chinese-American street gang called “the Joy Boys.”

Domino/The Domino
DC: “The Domino” was a villain who fought the Golden Age Superman. “Domino” was a female Nazi agent who fought the Blackhawks. “Domino” was also the alias of a gangster who tried to establish himself as the secret crime boss of Smallville in the days of the Earth-One Superboy.
MARVEL: Several users; probably the most famous is the one who worked with X-Force for awhile, although this is complicated by the fact that the first “Domino” to actually appear in a Marvel comic, meeting the New Mutants and then fighting alongside them (beginning just before they were relaunched in a new title as “X-Force”), was actually impersonating the “real Domino” who was an old friend of Cable’s but who had never appeared in any comic books at that point.

Dominus
DC: Villain who’s given Superman some bad times.
MARVEL: Alien computer that became a supervillain.

Doom/The Doom
DC: “The Doom” was a villain who fought the Golden Age Green Arrow. Incidentally, “The Doom” turned out to be Tom Wayne, a millionaire — no relation to Batman’s millionaire father Thomas Wayne, as far as I can tell.
MARVEL: “Doom” was commonly used by the metal-masked fellow in the 2099 timeline who starred in his own title — “Doom 2099″ — for 44 issues. If you take his claims at face value, he was allegedly the mainstream (Earth-616) version of the classic character “Doctor Doom,” but I’m told that this was never positively established as canonical fact. According to marvunapp.com, at least two other alternate timelines are also known to have characters who prefer to introduce themselves as just plain “Doom”; one was an analog of our own beloved Victor Von Doom, and the other was an analog of Victor’s protege/impersonator, Kristoff.

Double-Header
DC: Two-headed hero who failed of admission to the Legion of Super-Heroes; he ended up with the Legion of Substitute Heroes in the Pre-Zero Hour era.
MARVEL: Two-headed mutant in the “Earth X” timeline.

Dragon/The Dragon
DC: “The Dragon” was a Golden Age Fawcett villain who looked part-human, part-reptilian. Two more users of “The Dragon” were Golden Age MLJ villains. One has the distinction of being the first bad guy ever defeated in the feature “Fu Chang, International Detective.” The other was a Japanese spy who ran afoul of The Web.
MARVEL: Several users (some of whom were dragons).

The Dragon King
DC: A Japanese agent who was instrumental in creating the magical field which forced many Golden Age heroes to stay away from Axis territory during WWII or else be mind-controlled (as revealed in a 1980s retcon). He has also been active in modern times; it seems he is now a villain loyal only to himself instead of serving his homeland.
MARVEL: Looks like at least three individuals have used this.

Dragonfire
DC: Chinese operative, partner of Angry Wizard and Barefoot Tiger; that trio once captured some of the Outsiders, but it didn’t last.
MARVEL: Chen Hei-Kwun, a Night Raven foe; he supposedly died after being 1) mauled by the pet tiger of Yi Yang (his superior in the Dragon Tong), 2) shot by Yi Yang, and 3) staggering backwards and falling through an open manhole for good measure. (But I gather we were never told that a medical examiner had performed an autopsy and signed a death certificate, so who knows?)

Dragonfly
DC: Temporary “Dial H for Hero” identity of Chris King. There was also a villainess who fought Batman in the Silver Age and recently made a comeback. And another villainess who debuted as an MLJ character (an agent of the evil outfit known as P.E.R.I.L.) in the Silver Age.
MARVEL: Several users.

Dreadnaught/Dreadnought
DC: “Dreadnaught” was a member of the genetically-engineered group known as the RECOMbatants; he (like his teammates) died at the end of his first appearance. The second “Dreadnaught” was constructed by extraterrestrials; along with partner Psi-Phon, he fought the Post-COIE Superman and other heroes, and was defeated. Then he exploded now that the test of Earth’s inhabitants was over. “Dreadnought” was John Naissi, a thug who was transformed into a werecat by The White Magician.
MARVEL: “Dreadnaught” was Paul Turner of the Marvel UK Super Soldiers; now deceased. “Dreadnought” can refer to any one of many powerful robots which have been manufactured by Hydra and sold to various customers.

Dream Girl/Dream-Girl
DC: “Dream Girl” is Nura Nal, who has used this alias as a member of the Legion of Super-Heroes in more than one version of Legion continuity.
MARVEL: “Dream-Girl” was the nickname or alias of a criminal who fought the Golden Age hero “The Angel” in a single story; her associates were “Hash-Head” and “Jelly-Face.”

Dreamer
DC: Nura Nal used this alias in the Post-Zero Hour Reboot version of Legion of Super-Heroes continuity.
MARVEL: Jamie Flores, a member of the Crazy Eight group, which had no connection to the two Marvel characters who have each used “Crazy Eight” as a personal alias.

Druid/The Druid
DC: One “The Druid” was a Golden Age Quality villain who fought Doll Man. Later, another “The Druid” fought Atom (Ray Palmer) and Zatanna in the Silver Age. Yet another “The Druid” fought some of the Archie heroes in the 80s. Yet another “The Druid” (at least I think he was a new one) fought the JLE in the 90s.
MARVEL: At least three users; probably the best-known is Anthony Ludgate Druid, who’d previously called himself “Doctor Druid” for many years, but was using plain “Druid” right before he died. (And the latest user of “Druid” happens to be Anthony’s son.)

The Dude
DC: Two Golden Age villains. One was a Fawcett character who fought Bulletman and Bulletgirl. The other fought Doctor Fate.
MARVEL: A gunfighter who was part of a heroic group called “the Renegades”; they operated in Texas in 1836, as depicted in two stories published in the early 1970s; they’ve never been heard from since.

Duke/The Duke
DC: “The Duke” was a villain who fought the Golden Age Green Arrow. “Duke” is Henry Duke, would-be superhero in the Wildstorm Universe; he was a regular in the title “The Intimates,” in which he was a student at The Seminary.
MARVEL: At least four characters have had “Duke” as a nickname or alias.

Dummy/The Dummy
DC: At least two users of “The Dummy,” both villains; both were little men who used the schtick of pretending to be a ventriloquist’s dummy. The first was an adversary of the Golden Age Vigilante. The second fought Batman in the Silver Age. (Neither of those villains has any apparent connection to Batman’s later foes, The Ventriloquist and Scarface — I just thought you might be wondering.) Beyond that, a very doubtful case — might qualify as a “character,” might not! — was an actual ventriloquist’s dummy who appeared in a two-part “Sergeant Rock” story in the early 1980s. On the surface, it seemed the little figure (called “The Dummy” in the story title, and by members of Easy Company) was simply a lifeless object which other people had to carry around, but for awhile Rock thought he could hear The Dummy arguing with him inside Rock’s head, as if The Dummy were telepathic/haunted/whatever. The Dummy was lost underwater at the end of the story — so there was never a chance for any of the DCU’s experts on mystical matters to take a long, close look and offer an opinion on whether or not any sort of “life” or “consciousness” was present, as opposed to the possibility that Rock’s imagination was getting carried away after a few years of the stresses of combat. (But if I didn’t mention this particular Dummy, someone would have accused me of overlooking him!)
MARVEL: Two users. One was a small criminal who posed as a ventriloquist’s dummy in a single Silver Age story; one was a student with a gaseous body who attended Xavier’s school.

Dusk
DC: An alien woman who debuted in the “Final Night” miniseries, just in time to warn the heroes of Earth that the Sun-Eater was coming.
MARVEL: Seven users.

Dybbuk
DC: An Artificial Intelligence character who began as a member of the Israeli team of superheroes called “Hayoth.” Dybbuk later ended up working for the U.S. government. Another character of the same name (I think it was a different character, anyway) was part of a mind-controlled group called “the Hypothetical Army” which fought the JLA.
MARVEL: Ally of Ruby Thursday of the Headmen.

Dynaman
DC: In the timeline of the Elseworlds miniseries “The Golden Age,” this was the alias used by a villain (masquerading as a hero) who had taken control of, and arranged for new powers to be added to, the body of Daniel Dunbar (formerly “Dan the Dyna-Mite”). Dynaman died at the end of the mini after a zillion Golden Age superheroes found out who he really was. (If you don’t know his original name, I’d hate to ruin the surprise.)
MARVEL: Golden Age hero.

Dynamite/Dyna-Mite
DC: Apparently the word “Dynamite” alone has sometimes been used as an alias by the Golden Age crimefighter originally known as “Dan the Dyna-Mite.”
MARVEL: “Dynamite” is Michael Crawley, a member of Psi-Force in the New Universe. “Dyna-Mite” was a British WWII-era crimefighter, member of a briefly-extant costumed group called the Crusaders, according to a retcon in Marvel’s “Invaders” series in the 1970s.

Eagle/The Eagle
DC: At least three users. One was an agent of the OSS during World War II. It was also a superheroic alias used by Alfred Pennyworth in a single Silver Age story. More recently, we learned that Steve Tremaine was “The Eagle,” a superhero in the Wildstorm timeline whose heyday was back around the 1940s and 1950s.
MARVEL: Two users; one is a member of the X-People in the MC2 timeline.

Earthquake
DC: Villain who has fought Superman.
MARVEL: Member of the Shi’ar Imperial Guard.

Echo
DC: Several users. One is the partner of Query; those two have served as the Riddler’s henchwomen on various occasions.
MARVEL: Maya Lopez; she later served as “Ronin” in the “New Avengers” team for awhile.

Ecstacy
DC: Partner of Agony; the two of them are enforcers of the laws of Hell.
MARVEL: Renee Deladier, French villainess; she has stolen Cloak’s powers twice.

The Eel
DC: At least four users; all villains.
MARVEL: At least three of them.

Effigy
DC: Martyn Van Wyck, villain.
MARVEL: Lt. Velmax, a Skrull who spent a long time on Earth and became a member of the First Line; died when a Skrull ship exploded as shown in the mini “Marvel: The Lost Generation.”

Egg Head/Egghead
DC: A Batman villain used “Egghead” in the live-action “Batman” show of the 1960s. He, or variations of him, have since appeared in a few comic books. Note: Online resources differ on whether the villain’s alias has a space in the middle.
MARVEL: Three users of “Egghead”; most famous is Elihas Starr, a villain who was an enemy of Hank Pym’s for a long time before dying in battle (after Hawkeye fired an arrow into Egghead’s gun which somehow caused it to explode).

Eight Ball/Eight-Ball/Eightball/8-Ball
DC: “Eight Ball” was a Golden Age Quality villain; a mad scientist who fought Plastic Man.
MARVEL: Several users. One preferred “8-Ball”; he is now dead. Another, one of the Fatboys, preferred “Eight-Ball.” The other Marvel users apparently stick to “Eightball.”

El Diablo
DC: Four users; the first was a villain in a long serial in 1938 and 1939 in “Adventure Comics”; the other three have all been heroes.
MARVEL: Villain who fought The Sub-Mariner in a story published in 1955.

El Supremo
DC: Villain who once fought the Sea Devils.
MARVEL: Criminal who fought Power Man and Iron Fist.

Electro/Elektro
DC: “Electro” was a “light ray creature” who was actually a hoax contrived by the Silver Age Lex Luthor.
MARVEL: Several users of “Electro”; most famous is Maxwell Dillon, one of the earliest Spider-Man villains. “Elektro” was a robot villain. He was later revealed to have been rebuilt and turned into a mailroom employee at the Baxter Building. Also, the spelling “Elektro” was once used in a “What The–?” story for a parody version of Electro (Max Dillon).

Elektra/Electra
DC: “Electra” was a Golden Age Quality robot villainess with electrical powers who fought Plastic Man.
MARVEL: Elektra Natchios made a reputation for herself as an assassin simply called “Elektra” in the criminal world, I believe. “Electra” was once used in a “What The–?” story for a parody of Elektra.

Ember
DC: “Ember” was an Earth-Born Angel in Peter David’s “Supergirl” series; the “angel” character (whom Linda Danvers met by traveling back in time about 200 years) turned out to be a merger of the spirits of Rachel Pratchet and a black girl named Ember (she’d been a slave of the Pratchet family).
MARVEL: When Alecto, one of the Furies of Greek myth, temporarily possessed a human host named Carlie Colon and fought “Ghost Rider” (which meant Danny Ketch at the time), the Alecto/Carlie merger was calling herself “Ember.” Since the physical body was that of an original character, I figure “Ember” herself counts as original enough for my purposes, despite my “no public domain characters” rule (which gets bent on occasion, anyway). At least two other “Embers” have also appeared in Marvel continuity; one may be a long-lost illegitimate son of the character Pyro.

Empathy
DC: Heroine; has served with a recent version of Infinity Inc.
MARVEL: Cosmic entity; one of the Friendless.

The Enchantress
DC: Member of the Shadowpact.
MARVEL: Amora of Asgard, usually a Thor villain.

Enforcer/The N-Forcer
DC: One “The Enforcer” fought Batman and Paul Kirk (Manhunter) in the 1970s. Two different “Enforcers” each fought Firestorm in the 1980s. Also: “The N-Forcer” is a hero in the Honor Guard in the universe of “Kurt Busiek’s Astro City.” (I’m not clear on the details, but some think there have actually been several different people inside the “N-Forcer” armored suits over the decades.)
MARVEL: “The Enforcer” was a villain who was killed by one of the “Scourge of the Underworld” operatives.

Enigma
DC: An alias used by the character who, during the one-year gap between “Infinite Crisis” and the “One Year Later” stories, had briefly served as a Teen Titan under the name “Riddler’s Daughter.” Her actual ancestry is unknown. She later became part of the villainous group Titans East.
MARVEL: Tara Virango, heroine from Bangladesh. Oddly enough, Tara never actually called herself “Enigma” when she debuted in a two-part Spider-Man story; it was only retconned in as an alias for her when she was briefly mentioned in “Civil War: Battle Damage Report,” years later!

Entropy
DC: An alias used by Krona, an Oan villain. Also the name used by a Wildstorm character whom I believe is a Kheran.
MARVEL: Cosmic entity.

Epiphany
DC: A member of the D.N.Angels.
MARVEL: Cosmic entity.

Epoch
DC: A time-traveling villain who usually fights the Justice League; he was originally known as “The Time Lord,” and later preferred “The Lord of Time,” before switching to “Epoch.”
MARVEL: Daughter of Eon; cosmic entity.

Epsilon
DC: At least two users. The first was a member of the Pantheon, a group which fought Superman and Batman in the Earth-One continuity of the early 1980s. The second was a mysterious new hero who joined the Titans for awhile, but turned out to be evil and may have died in battle. (This is complicated by the fact that during his time with the Titans, the body of Epsilon was often being mind-controlled by another person, Kevin Tanaka, who definitely died.)
MARVEL: One of the Ultra-Robots; long since destroyed.

Equinox
DC: The child to whom Power Girl gave birth during “Zero Hour”; after super-fast aging to reach his maturity as an incredibly powerful entity, he began calling himself this. He hasn’t even been mentioned in dialogue, much less appeared onstage, since the mid-90s, so it’s far from clear if he ever existed in the latest version of Power Girl continuity in the DCU. (Hopefully not.)
MARVEL: Terry Sorenson, villain who became a member of the Initiative.

Everyman
DC: Hannibal Bates, shapechanging villain.
MARVEL: Larry Eckler, villain; dead.

The Executioner
DC: At least four. One was a Golden Age adversary of MLJ’s The Hangman. One was Willy Hooker, owner of a shooting gallery, dressing up in a hooded costume and shooting escaped felons in order to collect the bounties on their heads. (It turned out he was arranging those escapes, so as to keep the money flowing into his own pockets.) Another user was a hit man who was hired to kill that pesky reporter Clark Kent in a Silver Age story — he failed, not surprisingly. This alias was also used by a teenaged Bruce Wayne, very briefly, in an issue of “Superboy” in the Pre-Crisis continuity; I doubt that story is still canonical.
MARVEL: Many users; probably the most notable is Skurge of Asgard, the faithful servant of Amara the Enchantress for a long time; he eventually died heroically.

Face/The Face
DC: “The Face” was a villain who fought the Golden Age Starman. Recently a hero called “The Face” participated in the Dark Side Club Tournament in the “Terror Titans” mini.
MARVEL: One “The Face” was a Golden Age villain, based in Japan, who once fought The Destroyer and died in that same story. Another “The Face” was introduced in the 1970s as a villain who fought the Invaders in the 1940s; he was a Nazi colonel who wore an iron mask over the right half of his face, which had been devastated by a bomb; this character also died shortly after debuting.

Fade/Phade
DC: “Fade” is a Milestone character. “Phade” is a villainess working for Onimar Synn.
MARVEL: “Fade” is a mercenary in the timeline of Marvel’s “2099″ books. “Phade” is an Ultraverse heroine.

The Fakir
DC: Demonic villain; supplied Isaac Bowin (one of the two Golden Age villains known as “The Fiddler”) with magical abilities; later did the same for another villain called “Trasher, the Ace of Base.”
MARVEL: Golden Age villain who fought Captain America and Bucky.

Falcon/The Falcon
DC: Three users of “The Falcon.” One was a Golden Age hero published by MLJ. The other two were Silver Age villains — one fought J’onn J’onnz; one fought Hawkman.
MARVEL: Two users. Carl Burgess, Golden Age hero. Sam Wilson, hero; Captain America’s co-star for several years in the 1970s.

False Face
DC: Golden Age Fawcett villain who fought Captain Marvel Jr.
MARVEL: In a 1953 story, Bob Brant and the Trouble-Shooters fought a communist spy called “False Face” because of his skill at disguise.

Fang/The Fang
DC: “Fang” is Jake Ketchum, werewolf and superhero; member of the band “Scare Tactics.” Another “Fang” was a Golden Age MLJ villain. “The Fang” was a Golden Age crime boss who once fought Batman and Superman.
MARVEL: Several users; at least two “Fangs” have been members of the Shi’ar Imperial Guard.

Fast Forward/Fastforward
DC: Two users of “Fast Forward.” One was a villain; part of the group called the Network that fought a Superman/Batman team-up shortly before the transition to Post-COIE continuity. The other is Ted Bruder, hero; served as a member of the Doom Patrol.
MARVEL: “Fastforward” was the alias eventually adopted by an amnesiac blond guy who was a mysterious speedster from some extradimensional reality; he’d initially said he thought his name was “Buried Alien” or something similar. (This was a thinly disguised reference to DC’s own Barry Allen, who had died in “Crisis on Infinite Earths” a few years before “Buried” appeared out of nowhere, wearing red shorts and yellow boots and not much else.)

Fastback/Fastbak
DC: “Fastback” is Timmy Joe Terrapin, hero; a founding member of the Zoo Crew. “Fastbak” is one of the New Gods from New Genesis.
MARVEL: “Fastback” is a female mercenary, a member of the Cannibal Catch group which was working for Slug in the early 1990s; she appeared in two stories and hasn’t been heard from since.

Fastball
DC: Obscure villain.
MARVEL: Timothy Ferris; hero in the New Universe.

Fatboy/Phatboy
DC: “Phatboy” was a meta-powered native of Boring II; now dead.
MARVEL: “Fatboy” was a vampire who met Blade.

Father Time
DC: Three users. Two were Golden Age villains; one fought the original Hawkman and the other fought the original Wildcat. The modern one is the leader of S.H.A.D.E., and is usually portrayed as a villain.
MARVEL: Three users; one was a Golden Age hero; another is an Elder of the Universe.

Felicity
DC: One of the Omega Men; she was killed during the “Invasion” event of the late 80s.
MARVEL: Villainess; a member of the Theatre of Pain in the 2099 timeline.

Fever
DC: Shyleen Lao, heroine; member of a previous version of the Doom Patrol. Also used by a villain in the world of “Kurt Busiek’s Astro City.”
MARVEL: A cyberspace character in the 2099 timeline.

The Fiddler
DC: Two Golden Age villains, no apparent connection; the one who became more famous was Isaac Bowin, who continued to fight superheroes off and on through the next several decades until he was killed by “Mockingbird” (Lex Luthor) at the start of the “Villains United” miniseries.
MARVEL: Golden Age villain, working for the Nazis, who fought Captain America and Bucky; died in his first appearance.

Fiend
DC: Another alias of the Wildstorm hero who was also known as “Pagan”; he apparently died recently.
MARVEL:

Firearm
DC: Villain; member of the Hard Labor Gang which fought the Justice Experience team back in the 1970s of the DCU (according to much later retcons).
MARVEL: Three users; most famous is Alec Swan, private investigator and bounty hunter in the Ultraverse, who had his own series for awhile.

Fireball
DC: Two users. First was a Golden Age MLJ hero. Second was Sonya Chuikov, a Russian heroine who was active in the WWII era (according to Post-Crisis retcons); I gather we don’t know what happened to her after the war.
MARVEL: Member of the mercenary group called “the Seekers.”

Firebird
DC: Serafina Arkadin, Russian superhero.
MARVEL: Bonita Juarez, hero.

Firebrand
DC: At least four users. Most recently: Andre Twist, introduced in “Crisis Aftermath: The Battle for Blüdhaven #1.”
MARVEL: Gary Gilbert, villain; dead.

The Firebug
DC: Four users of “The Firebug.” Three are villains in Batman-related continuity. Long before them, there was a Golden Age user who once fought Fawcett’s Mister Scarlet and Pinky, and died in the same story.
MARVEL: “Firebug” is a villain who fought Beta Flight once and apparently died.

Firefist
DC: Lyle Byrnes, villain. This alias was also used by a Khund who briefly served with the “Legion of Super-Heroes,” shortly before their Post-Zero Hour Reboot.
MARVEL: An alias of Rusty Collins. Also: a serial killer who fought Spider-Man once, using a flamethrower glove.

Firefly
DC: One hero (Harley Hudson, a Golden Age MLJ character) and two villains, each of whom has fought Batman (no other apparent connection, though).
MARVEL: Very short-lived villain; fought The Shroud and died.

Firelord
DC: “Firelord” was a villain who only appeared in “Super Friends #3″ and promptly got killed — along with 99 other supervillains — as part of another villain’s fiendish scheme.
MARVEL: Pyraeus Kril of Xandar, a former Herald of Galactus.

Flame/The Flame
DC: At least two users. One was a Golden Age Quality villain who fought Doll Man. One was a superhero from another world who appeared in a Superman/Batman team-up story in the 1960s.
MARVEL: At least four users.

Flame Thrower/Flame-Thrower
DC: “Flame-Thrower” is a villain in the continuity of “Kurt Busiek’s Astro City.”
MARVEL: In a Hostess ad in 1980 (published as a page of a comic book), a villain called “Flame Thrower” briefly fought The Human Torch (Johnny Storm).

Flare
DC: Two users. One was an enemy of Little Boy Blue in the Golden Age. The other user was Ray Sah, a villainess from Rimbor who served with one incarnation of the Fatal Five when they fought the Legion of Super-Heroes in the original continuity (around the mid-80s).
MARVEL: Two users; both villains. One was part of the Hellbent; died. One is a member of Shadowforce Alpha.

Flashback
DC: A Milestone character; she was a member of the Blood Syndicate. Before that, there was a French villain by that name who fought Batman and the Pre-COIE Wonder Woman in a single issue of “Brave and the Bold” and never appeared again.
MARVEL: Gardner Monroe, who has been part of Gamma Flight, Beta Flight, and Omega Flight at various times.

Flashpoint
DC: Wildstorm hero; used to be part of Stormwatch.
MARVEL: Travis Slaine, a character who fought Nightwatch and then disappeared by being compressed to a sub-molecular reality; hasn’t been heard from since.

Flaw
DC: Villain who fought Amethyst, Princess of Gemworld.
MARVEL: One of the Shi’ar Death Commandos.

Flex
DC: One of several aliases used by Sturgis Butterfield, a member of the Hero Hotline group.
MARVEL: Hero who served with Alpha Flight and Beta Flight, but lost his powers on M-Day.

The Fly
DC: At least two. One was a villain who fought the Golden Age Tarantula. The other is an Archie hero.
MARVEL: A Spider-Man villain.

The Flying Fox
DC: At least four users. One was a Golden Age aviator who apparently used this as his callsign. One was a member of the Young All-Stars during WWII (according to Post-Crisis retcons). One was Bruce Wayne in a temporary identity he invented as a teenager (according to the Pre-Crisis, Earth-One continuity). One is a heroine in “Kurt Busiek’s Astro City.”
MARVEL: One user; part of a group called “the Animen”; apparently had just one appearance in the mid-90s. (Please don’t confuse his group with the more famous villainous team “the Ani-Men.”)

Fog/Fogg
DC: “Fog” was a member of a “Night and Fog” duo which operated for the Axis in WWII (according to a retcon in “All-Star Squadron”). “The Fog” is a member of the Brotherhood of Dada which fought the Doom Patrol.
MARVEL: “Fogg” was an assassin; part of the “Knight and Fogg” duo which fought Spider-Man.

Fool/The Fool
DC: “The Fool” was a Golden Age villain who fought Alan Scott (Green Lantern).
MARVEL: Name used by a member of the Brethren (they were an alien group led by Thane Ector); he died in battle.

The Fox
DC: At least five users. A Golden Age Quality villain who fought the Blackhawks. Also, an MLJ hero. Also, an Impact hero from the early 90s — he had a different secret identity than the previous MLJ character, although he was based on the older version. Also, a villain who fought the Blackhawks in a story published by DC in the Silver Age; apparently no relation to the Fox they’d already tangled with in their Quality days? Also, one of the Terrible Trio that fought Batman in the Silver Age.
MARVEL: At least three users; all villains. (One fought the Two-Gun Kid in the Old West.)

Frag
DC: One of the Blasters.
MARVEL: One of the Inhumans.

Freak
DC: Heroine; served as a member of the Doom Patrol.
MARVEL: At least four users.

Freefall
DC: Roxy Spaulding, heroine; founding member of Wildstorm’s first Gen13 team.
MARVEL: At least two; one is a villain in the MC2 timeline.

Frenzy
DC: Lloyd Malcolm Jefferson, villain; a founding member of the Brotherhood of Dada which fought the Doom Patrol.
MARVEL: Joanne Cargill, villainess.

Frog Man/Frog-Man
DC: “Frog Man” is a villain who fought the Inferior Five.
MARVEL: At least two “Frog-Man” characters. One was Francois Le Blanc, a member of the Ani-Men, now dead. The other was Eugene Patilio, who wore his father’s old costume in a heroic role a few times in “Marvel Team-Up” in the 1980s. (He was the son of the original “Leap Frog,” an old Daredevil villain.)

Frostbite
DC: Three users: A member of Wildstorm’s DV8. A member of the Young Heroes. And a Qwardian villain (modeled after Ice of the Justice League) who appeared in the Post-COIE, Pre-Zero Hour days.
MARVEL: Sloan Alden, a villain. Also used by a female mutant in a group called “the Chosen” who fought the X-Men 2099 group. (The 2099 Frostbite’s genes had been tinkered with by Master Zhao in an attempt to make her the functional equivalent of Iceman of the original X-Men.)

Frosty/F’rahsti
DC: “Frosty” was a temporary “Dial H for Hero” alias of Vicki Grant. It was also the only name provided for a crook who appeared in one Superboy story in 1950.
MARVEL: In a parody story published in “What The–?”, “F’rahsti” was the name of a snowman-shaped monster who fought the hero then known as “Son of Santa.” (In the context of that story’s weird little timeline, that brave hero had been formerly known as “Son of Satan” until an editor chose to rearrange the letters of his fiery logo into something more family-friendly and then have him start facing Christmas-themed villains.)

Furball
DC: An alias of Brin Londo (better known as “Timber Wolf”) in the Legion of Super-Heroes continuity which followed the leap (in the late 80s) to “five years later.”
MARVEL: Villain; a member of the Allergen Gang that fought Captain America in a child-oriented one-shot special: “Captain America: Return of the Asthma Monster.”

Fury
DC: At least four users. The first two were mother and daughter. The daughter, Lyta Trevor, was a founding member of Infinity Inc. (Pre-COIE, Lyta was the daughter of the Earth-Two, Golden Age Wonder Woman. But Post-COIE, the “previous” Fury, Helena Kosmatos, was created out of thin air and retconned in as a 1940s heroine who had later become Lyta’s biological mother.) The third user is a villain who once fought Piper (formerly a Flash villain known as “Pied Piper”). The latest user was Erik Storn, who received powers from Lex Luthor, served with a new Infinity Inc., and then died.
MARVEL: “The Fury” is an almost unstoppable artificially created entity who specializes in killing superhumans.

Fusion
DC: At least three users. One was a Soviet operative who fought the Outsiders and died in the late 80s. One was a temporary “Dial H for Hero” identity of Jay. One was a member of the “Metallik” group of the Team Titans program.
MARVEL: Two Spider-Man villains have used the name.

Futura
DC: Temporary “Dial H for Hero” alias of Vicki Grant.
MARVEL: The name, presumably an alias, used by a woman who claimed to be psychic when she appeared in a single Golden Age Captain America story.

Future Man/Future-Man
DC: “Future-Man” was a temporary “Dial H for Hero” identity of Robby Reed.
MARVEL: “Future Man” was a Golden Age villain who had traveled back from a distant future to conquer this era so that the rest of his culture could relocate and run things in the Twentieth Century. (The Earth in their day was a very dry wasteland; they felt it necessary to evacuate.)

Gallium
DC: Robot member of the third “Metal Men” team; eventually went rogue and was destroyed.
MARVEL: Presumably one of the Elements of Doom.

The Gamesman
DC: Villain who fought Aquaman in the 90s.
MARVEL: Two villains used this alias in quick succession when fighting Jessica Drew, the original Spider-Woman, in her solo title. Apparently they’ve never been heard from since.

The Gamesmaster
DC: Villain who fought Chris King and Vicki Grant in their “Dial H for Hero” days.
MARVEL: Very powerful telepathic villain; he debuted in the 1990s while refereeing the competitions of the Upstarts.

Gargantus
DC: Villain; one of the Ani-Men who fought the JLA in the 1980s.
MARVEL: A few users, including one robot.

The Gargoyle
DC: Many users. In the Golden Age, villains called “The Gargoyle” fought: Superman (DC), Mister Justice (MLJ), and Mr. Scarlet (Fawcett). Since then, other users of “Gargoyle” or “The Gargoyle” have fought Batman, the Challengers of the Unknown, and the Teen Titans. The Titans villain (real name Bromwell Stick, aka “Mister Twister,” aka “The Gargoyle”) is probably the best-known.
MARVEL: Most notably: Isaac Christians, who served as a Defender. Previously, there was another “Gargoyle,” a Soviet scientist who died in his first appearance.

Gauntlet/The Gauntlet
DC: The first was a villain who appeared and died in a Bronze Age Jimmy Olsen story. The second is Douglas Strange, a villain who debuted in the “Hawk and Dove” regular title that starred Hank Hall and Dawn Granger as the heroic co-stars.
MARVEL: Several users.

Gazelle
DC: Giselle Smith, heroine; joined the version of the Legion of Super-Heroes which followed the 2004 Reboot.
MARVEL: Member of Salem’s Seven.

Geiger
DC: Villain; member of the Nuclear Legion which participated in “The Battle for Bludhaven.”
MARVEL: Delilah “Dee Dee” Dearborn, heroine; became part of the Initiative program.

Geist
DC: Member of the Blood Pack; hero. Also used by a member of Wildstorm’s Wildcore team.
MARVEL: A villain; a diehard Nazi who finally got killed by Magneto.

Gemini
DC: In “Peacemaker #1″ in 1988, there was a character called “Gemini” who appeared to be a new recruit to the organization of the evil Dr. Tzin-Tzin, but turned out to actually be an undercover U.S. agent trying to infiltrate the organization; that Gemini died in the same issue in which he debuted. In the early 1990s, in a “Timber Wolf” mini in which the title character had time-traveled back to modern times, there was another “Gemini” who apparently became a friend of his, but I don’t know much more than that. Right now “Gemini” is used by Gemini DeMille, the daughter of the late Madame Rouge, with similar powers and an equally nasty personality. Also,
MARVEL: Several users have been associated with one incarnation or another of the “Zodiac” criminal outfit. There was also an Ultraverse “Gemini” who was a merger of twin brothers, Erik Johnson and Noel Robinson. (When last seen, those two seemed to have become permanently separated, though.)

The General
DC: In the early 1990s, Ulysses Hadrian Armstrong, a juvenile criminal mastermind, began making trouble in Gotham City while calling himself The General. (He has a love of military history, tactics, and nomenclature.) Years later, after Air Force General Wade Eiling had his mind transferred into the virtually indestructible body of The Shaggy Man, he started calling himself “The General,” which I choose to interpret as a criminal alias even though he had previously held that rank before going rogue.
MARVEL: Several users; I’m not sure how many of them had actually held general rank in orthodox armed forces.

Genesis
DC: Temporary heroic alias of Vicky Grant in her “Dial H for Hero” days. Also, the name was later used for a powerful entity, the hybrid product of a love affair between an angel and a demon, who possessed Jesse Custer in the “Preacher” series from Vertigo.
MARVEL: Tyler Dayspring (or Tyler Summers), villain, an adopted son of Cable (according to one source, but there seems to be considerable doubt on the details of their family ties); killed by Wolverine.

G-Force
DC: An alien speedster who lost a race, fell to Earth, and managed to gasp out a warning before he died; then Wally West found himself participating in the next dangerous race being organized by the same powerful beings who had caused G-Force’s death.
MARVEL: Professor Daniel Jones, who became a superhero in the Marvel UK two-part miniseries “Die Cut vs. G-Force,” and apparently hasn’t been heard from since?

Ghost/The Ghost
DC: Several users. One “Ghost” was a Golden Age Fawcett villain who fought Mister Scarlet. Another Golden Age Fawcett villain called himself “The Ghost” and fought Minute-Man. Over at DC, Golden Age villains called “The Ghost” fought Zatara, Superman, and Green Arrow (a different villain each time). The modern user of “The Ghost” is Alec Rois, a villain who first fought Captain Atom in his Silver Age Charlton days, but he got rebooted at the same time Captain Atom did (in the late 1980s, Post-COIE).
MARVEL: “The Ghost” is a villain who fought Iron Man; real name unknown. Also: “Ghost” was used by a member of Death Force: Morituri in the alternate future timeline of the “Strikeforce: Morituri” comic books.

Ghost Girl
DC: Character who appeared in a short, humorous Elseworlds tale in a “L.E.G.I.O.N.” annual.
MARVEL: Two users. First: Wendy Hunt, a Scottish girl who served with the group of mystery men known as “the Crusaders” during its very brief existence in the WWII era (as revealed in the “Invaders” series in the 1970s). Second: Lili Stephens, who served with Beta Flight.

The Ghost Rider
DC: In “Smash Comics #20,” the Golden Age Quality hero whose real name was Kent Thurston introduced himself by this alias in one fight scene. He was invisible at the time, beating up some criminals whom he expected would associate this hard-hitting “Ghost Rider” with a deceased racecar driver who had been a local celebrity while using that same nickname. Note: This was a special case. Most of the time, Kent Thurston used either “Hooded Justice” or “The Invisible Hood” or “Invisible Justice” when doing his crimefighting. (Indecision can be a terrible curse!)
MARVEL: Several users; probably the most famous is Johnny Blaze. (It doesn’t hurt that Nicholas Cage played him in the movie.)

Gigantus
DC: An alien from the world Mota; his name reflected the fact that he was much larger and stronger than most members of his species (but turned out to be quite short by human standards). He served with the L.E.G.I.O.N. in the 1990s.
MARVEL: Two users.

Gila/The Gila
DC: “The Gila” was a Golden Age Quality villain who fought the Blackhawks.
MARVEL: “Gila” was one of Dominus’s minions (part of a group also known as “the Desert Dwellers”; it is believed that over a dozen “Gilas” existed at one point; several were destroyed in combat with the West Coast Avengers.

Gimlet
DC: Ed Collins, a villain who impersonated Batman in a single Silver Age story.
MARVEL: A member of the Maggia who was killed by The Top Man.

Giz
DC: Mercenary who works with Mouse.
MARVEL: Character in the Ultraverse who provides tech support for Warstrike.

Gizmo
DC: Two users. First was Mikron O’Jeneus, villain; he was a founding member of the Fearsome Five and later became a member of the Silicon Syndicate. A couple of years ago, we met another villainous Gizmo (Mikron’s son) who joined the Cyborg Revenge Squad.
MARVEL: In the multidimensional group known as the Captain Britain Corps, one member was “Gizmo” (real name: William “Billy” Ransom) of Earth-40121.

Gladiator
DC: Temporary “Dial H for Hero” identity of Chris King.
MARVEL: Several users, including Kallark, leader of the Shi’ar Imperial Guard.

Glitch
DC: Name of a Gremlin who became friendly with the Earth-One Wonder Woman.
MARVEL: Charles “Chazz” J. Amundson, computer hacker; worked for Spymaster I in one story but then switched sides and was placed on parole.

Glob
DC: Major Dan Stone, formerly known as “Flow”; a member of the International Ultramarine Corps.
MARVEL: At least two, both of whom met the Man-Thing; the second was apparently destroyed by Man-Thing’s touch.

Glowworm
DC: A villain in the continuity of “Kurt Busiek’s Astro City.”
MARVEL: Two users; one was a villain who fought Power Man and Iron Fist in one story; the other was a Morlock, now dead.

Goblin/Goblyn
DC: In one Golden Age story, Batman fought a “Goblin” who was simply a safecracker wearing a scary mask.
MARVEL: Three users of “Goblin.” Also, “Goblyn” is the nonhuman-looking twin sister of Laura Dean; Laura and Goblyn appeared several times in the late 80s and early 90s in the original “Alpha Flight” title, although they were never members of Alpha — Beta Flight membership was as far as they got.

Gog
DC: Superman villain.
MARVEL: Several of them.

Gold
DC: One of the original Metal Men.
MARVEL: One of the Elements of Doom.

Golden Blade/Goldenblade
DC: “Golden Blade” is an alien hero; part of the group “the Honor Team of Thronn,” as seen in one Silver Age Green Lantern story.
MARVEL: “Goldenblade” is a mercenary; partner of Sapper.

Gorgon
DC: Two of them (not counting any mythological Gorgons in the DCU, such as the original Medusa). One was a villain, one of the Extremists — though it eventually turned out that the only one who appeared onstage while fighting the Justice League was actually a robot duplicate of the “original” Gorgon. The other Gorgon was one of “the Hybrid” who once fought the Titans; apparently died later in Roulette’s fight club.
MARVEL: One of the Inhumans. Also: Tomi Shishido, villain who fought Wolverine and died.

Grace
DC: Grace Choi; created by Judd Winick for his recent version of the Outsiders team.
MARVEL: Several users.

Grandmaster
DC: Leader of the evil robotic Manhunters.
MARVEL: The Elder of the Universe who is obsessed with playing games.

Grasp
DC: Villain who fought Swamp Thing and died.
MARVEL: “Grasp” was a member of the mercenary group called “the Seekers”; finally committed suicide.

Grasshopper
DC: At least three. A Golden Age Quality villain who fought Plastic Man. An MLJ villain who fought Fly-Girl. And a temporary “Dial H for Hero” alias of Vicky Grant.
MARVEL: Three users; apparently all wanted to be superheroes and all died pretty quickly after they got started.

The Gray Man/Greyman
DC: “The Gray Man” is a powerful being who was assigned, centuries ago by the Lord of Order, to collect dream-stuff from sleeping mortals.
MARVEL: Frederick Gramon, a villain on Earth-Shadowline, used either “Greyman” or “The Gray Man” or perhaps some other variation. (Online resources differ on how his alias was lettered, and I haven’t read the relevant miniseries.)

Graybeard/Greybeard
DC: “Greybeard” was the oldest living active criminal in the world of Captain Marvel’s Pre-COIE stories, both in the Golden Age comics from Fawcett and in the Earth-S era.
MARVEL: The Grand Vizier of Polemachus is listed at marvunapp.com as both “Graybeard” and “Greybeard.”

Green Terror
DC: Golden Age Quality villain who fought Plastic Man.
MARVEL: Golden Age villain.

Greeny
DC: Golden Age Fawcett villain; served as henchman to the villainous archer “Mister Green.”
MARVEL: Nickname or alias used by an alien who appeared in one story — he had a green epidermis.

Gridlock
DC: Villain who fought Impulse.
MARVEL: New Universe character; served with the Paranormal Platoon.

The Griffin/Gryphon
DC: “Griffin” was Griffin Grey, developed superspeed and superstrength, said he wanted to be a hero but often acted like a villain; now dead.
MARVEL: “The Griffin” is Johnny Horton, villain. “Gryphon” is Ekatarina Gryaznova, who fought X-Force.

Grim/Grimm
DC: “Grimm” is a renegade from Gorilla City. I suspect the name of being an alias, rather than what his parents had originally named him; the meaning in English is just too apt. (Yes, I could be wrong!)
MARVEL: “Grim” is used as an alias by the son of Ben Grimm and Sharon Ventura in the MC2 timeline. “Grimm” was an enemy of Conan the Barbarian in the Hyborian Era; near as I can tell, the character was created at, and presumably is still owned by, Marvel.

Grunt
DC: Hero who served with the Doom Patrol (in John Byrne’s reboot version of the DP).
MARVEL: At least two users.

Guardian
DC: Jim Harper, Golden Age hero; the same costumed role was later used by his modern-day clone.
MARVEL: James MacDonald Hudson of Alpha Flight.

Gunhawk
DC: A Batman villain.
MARVEL: At least one, maybe two, “Wild West” characters from the 19th Century.

Gunshot
DC: Villain; served as a member of “the New Extremists” and later in the Overmaster’s second Cadre.
MARVEL: A Genoshan Magistrate.

Hafnium
DC: Villain who fought Metamorpho and was destroyed.
MARVEL: One of the Elements of Doom.

Hag/The Hag
DC: “The Hag” was a Golden Age Quality villain who fought Doll Man. “The Hag” was also the first alias used by Mysa Nal in the original Legion of Super-Heroes continuity; at the time, she appeared to be old and ugly, and was part of a villainous group fighting the Legion; it turned out she had been magically transformed and enslaved, but that spell was broken at the end of her first appearance. (Mysa later joined the Legion as “The White Witch.”)
MARVEL: At least two users; one was a Golden Age villain who fought the original Human Torch and Toro.

Half-Life/Halflife
DC: “Half-Life” was Byron Stark, member of the Ravers; now dead. “Halflife” is a Milestone character; a foe of the Blood Syndicate.
MARVEL: “Halflife” is an extraterrestrial villain. “Half-Life” was Anthony Masterson, a villain who fought the Hulk a few times — and may or may not have committed suicide; online resources contradict one another on the subject of whether he was “dead” or merely in a “coma” when last seen.

Half-Man
DC: Golden Age Fawcett villain; he was missing one eye, one leg, and one arm, due to war injuries. He repented of previous misdeeds in his last appearance — after his physical injuries were magically healed so that he no longer felt he was just “half a man,” I gather.
MARVEL: A four-armed servant of Supremus who died fighting Nick Fury.

Hammer/The Hammer
DC: In 1954 (when they were still published by Quality), the Blackhawks fought some agents of the USSR called “Hammer” and “Sickle.” In a DC story published ten years later, the Blackhawks fought a villain called “The Hammer” who was a different character. Many years later, DC fans met another “Hammer” who was a member of the Russian superhero team “the People’s Heroes.” (That last “Hammer” was married to a teammate called “Sickle.”)
MARVEL: Several users, including a Russian “Hammer” who also works with a partner called “Sickle.”

Hammer Hand/Hammerhand
DC: “Hammer Hand” was a Golden Age Quality villain working for the Nazis; fought The Ray.
MARVEL: Three users of “Hammerhand”; two of them were Spaceknights. (The first Spaceknight of that name is presumed dead, and was replaced by another.)

The Hang Man/Hangman/The Hangman
DC: “Hangman” was a Milestone villain who fought the hero Hardware. “The Hangman” was a Golden Age Quality villain who fought the Blackhawks. Another “The Hangman” was a French pilot in WWI; a rival of the Enemy Ace. Another “The Hangman” was a villain who once fought a Batman/Elongated Man team-up in the early 1980s. Two MLJ heroes (father and son) have used “The Hangman,” and so did an Impact hero in the early 90s who was clearly inspired by the MLJ users, but had a different secret identity. However, as far as I can tell, “The Hang Man” has only been used as the name popularly applied to a mysterious cop-killer who always used a hangman’s noose on the victims during a year-long killing spree which was depicted in the graphic novel “Batman: Dark Victory.” (Since that story is more of a whodunit than most Batman stories, I prefer not to ruin the surprise, so I won’t name the killer.)
MARVEL: Three users of “The Hangman,” all villains; the first and second are dead.

Harbinger
DC: Lyla (no last name known?), who was the Monitor’s assistant before and during Crisis on Infinite Earths.
MARVEL: At least two. One was a servant of Apocalypse; now dead.

Hard Drive/Hardrive
DC: “Hard Drive” was the first team leader of the Young Heroes.
MARVEL: “Hardrive” was a villain; a cyborg member of the Dark Riders.

Hardcore
DC: Last name “Powell,” first name unknown. Student at Hamilton School who possesses an invulnerability aura. Sent to jail by Guy Gardner in “Detention Comics #1.”
MARVEL: Assassin who fought Luke Cage; apparently died in an explosion.

The Harpy
DC: Temporary villainous “Dial H for Hero” identity of Vicki Grant. Later, Iris Phelios used this in a few stories; she was fanatically loyal to Maxie Zeus, but hasn’t been heard from in almost two decades.
MARVEL: At least two have used this alias, including Betty Ross (who later married Bruce Banner) when she was briefly mutated into a villainous creature.

Harrier
DC: Villain who fought the modern Wonder Woman.
MARVEL: Several users.

Harrow
DC: Villain who only existed as part of an illusionary scenario created by the Guardians of the Universe as a test for Hal Jordan.
MARVEL: An evil psychic entity which was eventually destroyed by Galactus.

Harvest
DC: Supernatural vigilante killer who once fought the Birds of Prey.
MARVEL: Several users, including Chi Lo, one of the Young Gods.

Haven
DC: The name, apparently an alias, used by a kind-hearted hermit whom Batman met just once, in “Detective Comics #514.” (Haven died at the end of the story.)
MARVEL: Radha Dastoor, apparently a powerful mutant, now dead.

Hawk/The Hawk
DC: Hank Hall, Sasha Martens, and Holly Granger have each served as the “Hawk” half of one “Hawk & Dove” heroic duo or another. But long before any of those characters came along, there were at least three in the Golden Age. “The Hawk” is listed as Quality’s first masked hero. He appeared in “Feature Funnies #2″ (1937) — and was never heard from again! Another “Hawk” was a Golden Age Quality villain who fought Quicksilver (the future “Max Mercury”). Yet another “Hawk” was a Golden Age Fawcett villain who fought the hero Minute-Man.
MARVEL: Several users, including one of Killraven’s Freemen.

Hazard
DC: Two, both villains; no apparent connection between them. One is Rebecca Sharpe, former member of the Injustice Society. One is Manuel Cabral, a criminal mastermind who used to give Steel (John Henry Irons) a bad time.
MARVEL: Two users. One is a character in the 2099 timeline; one is Carter Ryking, a mutant villain who lost his powers on M-Day.

Headhunter
DC: Villain who fought Batman in the early 90s.
MARVEL: At least three users (no known connections among them).

Heat Wave/Heatwave
DC: “Heat Wave” is Mick Rory, an old Flash villain (from the Barry Allen era) who sometimes reforms and then goes bad again.
MARVEL: “Heatwave” was one of the Spaceknights; went rogue and died.

Helio
DC: Two users. One was a being with sun-powers who was created by Eclipso in a story published in 1966; died in the same story. The other debuted at Charlton as part of a Silver Age superhero team called “the Sentinels.” I’m told that DC has never revived anyone from the team’s roster.
MARVEL: One of Maelstrom’s minions. The first user died, but more than one clone of him has appeared since then.

Helium
DC: Villain; one of the Gas Gang. Also, one of Mr. Element’s henchmen in his first appearance must have been using this alias (since Mr. Element claimed all six noble gasses were represented).
MARVEL: One of the Elements of Doom.

Hellion
DC: Helen Beleanto, villainess who fought The Spectre in the 1990s.
MARVEL: Julian Keller, one of the team of Hellions formed by Emma Frost at the Xavier Institute.

Hercules
DC: At least four users of the name definitely were not “the original Hercules of Graeco-Roman myth.” (Please don’t bother telling me that “Herakles” or “Heracles” would be more accurate as the original name of the legendary character who did Twelve Labors — I already knew that “Hercules” was only a later Roman version of the famous character’s name, but the modern world ignores that detail in movies, TV shows, etc., so I’ve given up trying to fight the trend, okay?) As an example of one of the “original characters” of this name: One “Hercules” was a Golden Age hero who was published by Quality; he was born and raised in the USA in the early 20th century; his real name was Joe Hercules and he had superhuman strength (which apparently was never explained, but just at a wild guess, perhaps readers were meant to assume he was a distant descendant of his legendary namesake?).
MARVEL: Several users — and, as with DC’s uses of the name, I’m not even counting the variations of “the mythological Hercules” who have existed in one timeline or another.

Hero
DC: Hero Cruz has an H-Dial which he uses; has served with the Ravers and the Titans (apparently very briefly in the latter case).
MARVEL: At least two users; in one case it was a temporary alias of The Forgotten One.

High Father/Highfather
DC: “Highfather” is the name taken by the New God who was previously known as Izaya.
MARVEL: “High Father” is a villain who fought the Dragon’s Claws. (They reside in the 82nd Century of their native timeline.)

High-Tech/Hi-Tek/Hi-Tech
DC: “Hi-Tek” was a teenage computer hacker who once fought Green Arrow in the early 1980s before reforming. “Hi-Tech” is a villainess who has fought Superman several times.
MARVEL: “High-Tech” became the preferred alias of Curtis Carr, the reformed ex-villain who had invented the role of “Chemistro.”

The Highwayman
DC: Three users. One was a Golden Age Quality villain who fought Doll Man. One was a villain of the Old West who appeared in one issue of “All-American Western” in the Golden Age. The third is a mystic character who has clashed with Hawkman in modern times.
MARVEL: Looks like three users; all villains.

Hitman
DC: Hired killer Tommy Monaghan; possibly dead at the end of his own series (I’m told it’s rather unclear).
MARVEL: Burt Kenyon, an assassin who fought Spider-Man and the Punisher.

Holocaust
DC: A villain who started out by fighting the Doom Patrol in the late 80s. This name has also been used by a Milestone character who later switched to “Pyre” for awhile.
MARVEL: Villain; son of Apocalypse from the “Age of Apocalypse” timeline.

Hood/The Hood
DC: “The Hood” was a Golden Age villain who once fought Hawkman. Another Golden Age villain of that name fought Lando, Man of Magic. Fawcett had yet another Golden Age villain of that name who fought Captain Marvel, Jr. “Hood” is George Cross, a costumed hero in England who met Batman during “Knightquest”; may not have appeared again?
MARVEL: Several users.

Hook/The Hook
DC: “The Hook” was the assassin who killed Boston Brand, who promptly became the ghostly Deadman. Later, Kieron Masterson became “Hook,” one of the new heroes who debuted during the “Bloodlines” event.
MARVEL: Looks like two users of “Hook”; both villains. One was a Golden Age bomb builder; one is a member of the Hellbent.

Hornet
DC: Member of the Maximums; a Wasp knockoff whose first name is “Jaime.”
MARVEL: Three users; one was Peter Parker.

Horse
DC: Villain; one of the Twelve Brothers in Silk; recently got himself killed by his sister, who is now known as “White Canary.” (In fact, she killed all twelve of her brothers.)
MARVEL: A member of China Force who defected, and then died. This alias (or nickname, or whatever) was also the only name provided for a drug dealer who was serving as a priest of Dormammu in a “Doctor Strange” story arc in the 1980s.

Host
DC: H’v'ler’ni robot containing and powered by the minds of 500 members of the H’v'ler’ni extraterrestrial race; fought Superman shortly after his Post-COIE Reboot.
MARVEL: Living pathogen which was defeated by Mystique.

Hot Shot/Hotshot
DC: Two users of “Hot Shot.” The first was a Golden Age villain who once fought Hawkman; the second fought Argus in the 1990s. Two users of “Hotshot.” First is Billy Lefferts, member of the “Hero Hotline” service. Second is Raymond Gibson, part of a U.S. government program called “The Last Line” which is trained and equipped for the specific task of fighting Superman (using lots of Green K) if he ever goes rogue.
MARVEL: At least three users of “Hotshot.”

Hotwire
DC: Yvette Brawner, a villai6ness in the continuity of the “The Batman” cartoon of the 2000s; she has appeared in at least one comic book set in that continuity.
MARVEL: At least two users. One is a thief in the 2099 timeline who can turn intangible; he happens to be the son of the “Punisher 2099″ character.

The Human Cannonball
DC: Ryan Chase, fledgling hero in a few Lois Lane stories in the Pre-COIE continuity.
MARVEL: Member of the Circus of Crime.

The Human Fly
DC: Golden Age Quality villain who fought Quicksilver (the hero later known as “Max Mercury”).
MARVEL: A few users. This tag was apparently used at least once by the Spider-Man villain better known as “The Fly.” There was also a superhero — said to be based to some extent on a real-life figure, stuntman Rick Rojatt — who had his own Marvel title in the late 70s as “The Human Fly.” (However, I hear that the comic book stories never said that their masked hero’s real name was Rick Rojatt, and the plots were unabashedly fictitious, so I am counting this Human Fly as an original Marvel character.)

Humbug
DC: Villain who fought Ray Palmer (Atom).
MARVEL: Buck Mitty, villain who controls insects.

The Hunchback
DC: Three users: A Golden Age Fawcett hero; a Golden Age Fawcett villain; another villain who fought Barbara Gordon in her Batgirl days.
MARVEL: Apparently this was an alias used by the character “Half-Mad” in “Werewolf by Night” in the 1970s.

Hunter
DC: Several, including Rip Hunter who sometimes just uses this name.
MARVEL: Several.

Huntress/The Huntress
DC: Several users — and I’ll try to sort them all out for you. DC’s first “The Huntress” was Paula Brooks, a Golden Age villainess who fought the original Wildcat (Ted Grant) several times and eventually joined the Injustice Society. (Decades later, Post-COIE retcons told us that before she ever became known as “The Huntress,” Paula had made a sincere effort to be a heroine under the alias “The Tigress” during the WWII era, as shown in the “Young All-Stars” title.) There was also a Golden Age Quality villainess named Diane Lindsey who called herself “The Huntress” when she fought Doll Man. In the 1960s, another “The Huntress” worked for the evil syndicate known as O.G.R.E. while fighting Aquaman and Mera, but then switched sides and led those heroes to her employer’s headquarters; that story was her sole appearance. In the 1970s we met Helena Wayne, Pre-Crisis Earth-Two heroine; daughter of the Golden Age versions of Batman and Catwoman; she was wiped out of existence by COIE. However, an analog of Helena Wayne is now known to still be going strong as “The Huntress” in the Earth-2 of DC’s New Multiverse. Since 1989, however, the “regular” Huntress of the modern mainstream continuity of the DCU has been Helena Bertinelli; she’s kinda-sorta a heroine, if you catch her on a good day.
MARVEL: A codename used by Bobbi Morse before she became “Mockingbird.”

Hyena/The Hyena
DC: The Golden Age Doll Man fought a villain of this name. In the 1980s, Firestorm fought two villains of this name. One turned out to be a girl named Summer Day who had been cursed by the bite of a were-hyena. She later fell in love with a doctor named Jivan Shi and once bit him on the throat, causing him, too, to become “The Hyena.” Years later, a “Hyena” who (presumably) was either Summer or Jivan got killed by Deadshot — one online resource claims that we were never given any info whatsoever regarding which Hyena appeared in that story. In the world of the “Superman/Batman: Generations” stories, there is a different “Hyena” (doesn’t look like a close analog of any previous user) who fought that timeline’s Batman III (Bruce Wayne Jr., or “B.J.”) in the 1980s.
MARVEL: Henry Mortonson, Golden Age villain who fought the original Human Torch.

The Hypnotist
DC: Golden Age Quality villain who fought Plastic Man.
MARVEL: Golden Age villain who fought the original Human Torch and Toro.

Icarus
DC: Eddie Hamilton, a young hero who died in the “Shadow War of Hawkman” series in the 1980s.
MARVEL: Jay Guthrie, a younger brother of Sam Guthrie (Cannonball), used this name while he was a student at the Xavier Institute; he is now believed dead (although his mutant healing factor had saved him on several previous occasions).

Ice
DC: Heroic alias adopted by Tora Olafsdotter after she stopped being the second “Ice Maiden” of the Global Guardians.
MARVEL: Several users.

The Ice Man/Iceman
DC: Two users of “The Ice Man.” One was a Golden Age Quality villain who fought Plastic Man. The other was a villain hired to fight the L.E.G.I.O.N.
MARVEL: “Iceman” is Bobby Drake, founding member of the X-Men.

Ice Queen
DC: Villainess who fought Nightmaster in one story in 1969.
MARVEL: Several users.

Icon
DC: A Milestone hero.
MARVEL: A Wakandan villain. Also the name of a computer program modeled on one version of “Heather Hudson” in the “Exiles” title.

Impala
DC: Mbulaze, a Zulu speedster hero who served with the Global Guardians until he lost his powers.
MARVEL: Zambian woman mercenary who has worked with B.A.D. Girls, Inc.

Impasse
DC: An alien who fought Katydid (one of the Omega Men) in one issue of “Omega Men” in the mid-80s.
MARVEL: Villain who once fought Power Man and Iron Fist in the 1980s; that’s all we ever saw of him.

Impulse
DC: Two users. Best known as a former alias of Bart Allen, the hero who later served as “Kid Flash” and then “Flash”; he died; but I hear he is now back in harness as “Kid Flash” once again. Also: Richard Kent Shakespeare, who served with the Legion of Super-Heroes shortly before the team’s Post-Zero Hour Reboot.
MARVEL: Two users. First, a member of the Imperial Guard of the Shi’ar; now dead. Second: Dwight Hubbard, member of Psionex.

The Incinerator
DC: Villain who was captured by a temporary alliance of Batman and The Monolith.
MARVEL: Costumed villain who appeared in one “Power Man/Iron Fist” story.

Indigo
DC: Two users. A heroine who was a member of Sovereign Seven. Later: an feminine android who seemed to be a villain; then was allegedly reprogrammed and seemed to be a heroine while serving with the Outsiders; then turned out to be a villain after all; Brainiac 8, in fact; the character is now dead.
MARVEL: Patient in the Clinic in “D.P.7″ (a New Universe title); dead.

Inertia
DC: Thaddeus Thawne, a clone of Bart Allen and a villain; recently became a member of the new “Titans East.”
MARVEL: A female character in the Squadron Supreme timeline who infiltrated that group on behalf of Kyle Richmond’s “Redeemers” resistance group.

Inferno
DC: “Inferno” is Frank Verrano, a Golden Age MLJ hero. It has also been used at least twice by different characters in different versions of Legion of Super-Heroes continuity. Once as a new alias for Dirk Morgna (Sun Boy), Pre-Zero Hour. Once as the alias of a female character, real name unknown, in Post-Zero Hour continuity.
MARVEL: Several of them.

Infinity
DC: A mysterious new recruit to Oracle’s “Birds of Prey.”
MARVEL: A cosmic entity. Also: It turned out that this had been the intended alias of Leslie Anne Shappe when she became a killer vigilante, but she carved an “infinity” symbol onto the chest of her first victim, and an observer called it a crazy eight symbol, and thus the media began calling Leslie “Crazy Eight.”

Ingot
DC: In the Post-Zero Hour version of Legion of Super-Heroes continuity, Douglas Nolan, twin brother of the hero Ferro, was known as “Ingot” before he died.
MARVEL: Member of Brute Force.

Ink/Inque
DC: “Ink” was a temporary “Dial H for Hero” identity of Lori Morning in the Post-Zero Hour version of Legion of Super-Heroes continuity. “Inque” was a recurring villainess in the “Batman Beyond” TV series; she qualifies for this list because she also appeared in at least one “Batman Beyond” comic book.
MARVEL: Two users of “Ink”; one is Eric Gitter, who initially worked for Donald Pierce but later joined the “Young X-Men.”

The Invisible Man
DC: Golden Age Fawcett villain who fought Bulletman and Bulletgirl.
MARVEL: Perhaps three different users, according to marvunapp.com.

Ion
DC: Alias used, off and on, by Kyle Rayner, hero. (Eventually a retcon said that “Ion” is actually a separate entity that’s bonded, off and on, with Kyle Rayner.) The name was also used by a Stormwatch member who died in action during the second issue of the first “Stormwatch” title.
MARVEL: Violetta Todd, villainess.

I.Q.
DC: Ira Quimby, a villain whose mind can function with superhuman brilliance (provided he gets enough sunlight to keep his brain powered up).
MARVEL: Ishmael Questor, a brilliant and telepathic member of the Young Allies on the Counter-Earth created by Franklin Richards.

Iridium
DC: Robot member of the third “Metal Men” team; eventually went rogue and was destroyed.
MARVEL: One of the Elements of Doom.

Iron
DC: One of the original Metal Men.
MARVEL: One of the Elements of Doom.

Iron Butterfly
DC: A Milestone character.
MARVEL: Two users; women who were analogs from different timelines.

Iron Cross
DC: Villain; member of the Aryan Brigade. Also: In the world of “Kurt Busiek’s Astro City,” a German hero uses this name.
MARVEL: Three users.

The Iron Duke
DC: Two users. One was a villain who tangled with the Blackhawks in one Silver Age DC story. The second was an evil sorcerer who fought The Demon (Etrigan) and soon died.
MARVEL: A Golden Age villain who appeared in “Mystic Comics #3.”

Iron Fist
DC: Golden Age Quality villain who fought Plastic Man.
MARVEL: Several users; Daniel Rand is the most famous.

Iron Maiden
DC: Character in the Elseworlds mini “JLA: Another Nail.”
MARVEL: Several users.

Iron Man/The Iron Man
DC: According to dc.wikia.com, the Golden Age Robotman fought a villain called “Iron Man” in “Detective Comics #168″ — I have not been able to learn anything else about the character. Beyond that, I’m told (and have confirmed from other sources) that Quality had a Golden Age action hero named Hugh Hazzard, and he had a robot sidekick named Bozo. The robot was sometimes called “Bozo the Iron Man”; and sometimes the duo was called “Hugh Hazzard and his Iron Man.” However, I don’t know if Bozo ever had the habit of saying to new acquaintances: “Just call me The Iron Man.” (After all, Superman is often called “The Man of Steel,” but that doesn’t mean he uses it as a regular alias when introducing himself.)
MARVEL: The most famous “Iron Man” is Tony Stark, brilliant inventor of each of the many suits of armor he has worn over the years. Lots of other characters have worn such armor and used the name “Iron Man” at one time or another, but none of them ever had a prayer of “permanently replacing” Tony in that role.

Iron Mask
DC: Golden Age Quality villain who fought Doll Man.
MARVEL: An Old West villain.

Ivory
DC: “Ivory” and “Ebony” were Wildstorm heroes; a loving couple who died together.
MARVEL: Used by a beautiful, scantily clad, white-haired (or was it silver-haired?) girl who auditioned for a “What The–?” parody version of the JLA despite a serious lack of real super-powers; she later appeared in other stories in that title as Wolverina’s best friend.

Jack Frost
DC: Two users. Zan of the Wonder Twins reportedly turned himself into an icy form which he called “Jack Frost” on one occasion in the old “Super Friends” comic book. Later, the same alias was used by Dane McGowan of the Vertigo series “The Invisibles.”
MARVEL: Two users. One was a Golden Age superhero who, in the 1970s, was retconned to have been a member in good standing of a WWII-era group called the Liberty Legion; at some point, it was also established that he remembered nothing of his own origins. In the early 90s, Thor speculated that this Jack Frost might be a person he had once heard of (but never met) who was exiled from the Frost Giants for being such a runt by their standards, but that theory has never been proved or disproved. The second user of this name was a villain who debuted in the Silver Age and later renamed himself “Blizzard” (becoming Marvel’s first user of that alias).

Jack of Hearts
DC: Within the past decade, at least three men have each used this alias while serving with the Royal Flush Gang in the regular DCU. There is also a “Jack of Hearts” who appeared in one “Justice League Unlimited” comic book set in the DCAU continuity; I don’t know if his secret identity is the same as any of the other three characters I just mentioned. (If I knew that it were the same, I wouldn’t bother to mention him at all.)
MARVEL: Three users. The best-known by far is a hero; real name “Jack Hart”; a Contraxian/human half-breed who has served with the Avengers in the past; his current vital status is unclear.

Jack O’Lantern
DC: At least three. The latest one is Liam McHugh.
MARVEL: At least four, all of them villains.

The Jackal
DC: Lots of them. One was a Golden Age villain, leader of a gang of looters, who once fought the Earth-Two Batman. Another was a Silver Age villain who fought the Earth-One Batman (I’m referring to the Pre-COIE numbering in these “Jackal” listings.) Another was the crook who ordered Joseph Wilson’s (the future Jericho’s) throat to be cut (and that man later called himself “The Ravager” before Slade Wilson finally killed him). In the 1990s, a terrorist called The Jackal fought Superman. Also, a Golden Age MLJ villain of this name fought Bob Dickering (“The Hangman”), and a modern user of “The Jackal” has fought DC’s new version of “The Web.” Also, one fought the Silver Age Blackhawks.
MARVEL: Miles Warren, villain.

Jackhammer
DC: Two villains have used this name. One fought the Pre-COIE Superman (so he may not exist in continuity now). The other was a member of the Demolition Team.
MARVEL: Villain.

Jack-in-the-Box
DC: Three men — Jack Johnson (dead), his son Zachary Johnson, and Zachary’s protege Roscoe James — have each used this heroic costumed alias in the continuity of “Kurt Busiek’s Astro City.”
MARVEL: Jack Mead, an Australian aboriginal mutant who was used as a telepathic lie detector by the staff at the Neverland concentration camp.

Jade
DC: Jennie-Lynn Hayden, heroine; daughter of Alan Scott, the Golden Age Green Lantern.
MARVEL: At least three users.

Jaguar
DC: An Archie heroine.
MARVEL: An obscure villain who was killed by a “Scourge” in the 1980s.

Javelin/Javelynne
DC: “Javelin” was a former Olympic athlete from Germany who became a villain; currently dead.
MARVEL: Several users of “Javelin.” There was also a “Javelynne” who fought Hawkeye.

Jester
DC: Chuck Lane, originally a Golden Age Quality hero. There was also a Golden Age Quality villain of this name who fought Madam Fatal. Later: Cord Dexter Lemoyne, member of Wildstorm’s Wetworks.
MARVEL: Jonathon Powers, a long-time Daredevil villain (now supposedly reformed), is the most famous of several users.

Jet
DC: Two users. One is Celia Windward, a member of the New Guardians in the late 80s; she apparently died, but was somehow back again as the new leader of the Global Guardians in the “One Year Later” era. The other was Jodi Slayton of the Wildstorm universe; she is the original Backlash’s daughter and eventually started using the “Backlash” alias herself.

Jinx
DC: Three users. Best-known is an East Indian sorceress and villainess who joined the Fearsome Five. Another was a villain who fought Chris King and Vicki Grant in their “Dial H for Hero” days, and there is also a young villainess-turned-heroine called “Jinx” in the continuity of the “Teen Titans” animated series; she qualifies here because she has appeared in comics set in that same timeline.
MARVEL: Several users.

The Jokester
DC: In the New Multiverse, this name is used by Earth-3′s analog of The Joker.
MARVEL: This name was used by a parody of DC’s Joker in at least one “What The–?” story.

Jolly Roger
DC: Three users. One was a Golden Age Fawcett villain who fought Captain Marvel Jr. One was Thomas Wexler, who dressed as an old-time pirate while running a smuggling ring; he fought Batman in a story in the 1950s. The third is a character in the timeline of “The Invisibles.”
MARVEL: At least three users; one is an Ultraverse character and another lives in the 2099 timeline.

Jolt
DC: Two users. One was Carlotta Rivera, heroine; she was one of “the Blasters” until she, like most of that group, went “missing in action” and (I gather) simply hasn’t been heard from in a long time. The other user is a villainess who has fought Superman in his Post-COIE continuity.
MARVEL: Hallie Takahama, heroine; the first honest person to join the original Thunderbolts in the 1990s. (At the time, she assumed they were honest superheroes too.)

The Judge
DC: Leader of the villainous group known as “The Judge and Jury” which fought the Team Titans in their title in the early 90s. Also, there was a Golden Age MLJ villain who was supposed to be a real judge, but was also the secret leader of a pirate gang; I’m told that no name for him other than “The Judge” was ever used in that story, so I’ll accept it as an alias.
MARVEL: Michael Hart, a vigilante who appeared in the “Deadline” miniseries.

Kamikaze
DC: The first user was a superhuman agent of Imperial Japan during WWII; worked with the Axis Amerika group which fought the Young All-Stars (as shown in the late 1980s). The second user is one of the Blood Soldiers; they are a modern group of Japanese villains whom the new Judomaster (Sonia Sato) was fighting when the JSA first encountered her.
MARVEL: Mutant assassin, used to be part of the Mutant Liberation Front; now dead.

Karma
DC: Wayne Hawkins, served with the Doom Patrol, later died.
MARVEL: Xi’an Coy Manh, founding member of the original New Mutants.

Katana
DC: Tatsu Yamashiro, Japanese heroine; has served with various incarnations of the Outsiders.
MARVEL: Villainess; a member of the Cyber-Ninjas, a special squad within the larger organization known as the Si-Fan.

Kestrel
DC: A supernatural entity which has no physical body of its own; it has possessed several people at different times while making trouble for one “Hawk and Dove” duo or another.
MARVEL: Three users; one was a member of the Marvel UK group the Gene Dogs.

Key/The Key
DC: Two villains; one apparently died in the early 50s. The second has fought the Justice League on various occasions.
MARVEL: “Key” was an Australian mutant who assisted Cable.

Killshot
DC: Russian cyborg villain; he was part of the group of professional assassins called “the Hangmen,” all of whom are now dead.
MARVEL: Assassin who fought Spider-Man.

King/The King
DC: “King” Standish was a Golden Age masked crimefighter called “The King” (and later an agent of the OSS during WWII). A Golden Age Quality villain called “The King” fought Captain Triumph. In more modern times, “King” was a codename/title for a high-ranking member of Checkmate, although it no longer is.
MARVEL: Several users.

King Cobra/King Kobra/King Kobrah
DC: Four users of “King Cobra.” First: a villain who fought the Golden Age Doctor Mid-Nite. Second: a Golden Age Quality villain who fought the Blackhawks. Third: a villain who fought Batman, Robin, Batwoman, and Bat-Girl in a Silver Age story. Fourth: a guy who fought The Shadow in a story DC published in the 1970s. There was also a gangster in a Silver Age Superman story who was consistently called “‘King’ Kobra” in the dialogue. (The implication was that “Kobra” was his real surname.)
MARVEL: Two users of “King Cobra.” The first fought Miss America in the Golden Age. The second is Klaus Voorhees; after previously calling himself “The Human Cobra” and just plain “Cobra,” he finally upgraded himself to this alias sometime after he became the leader of the Serpent Society. Also, “King Kobrah” was an Old West villain who fought Kid Colt.

King Size/King-Size/Kingsize
DC: In the Silver Age the Inferior Five fought several characters who were obvious parodies of contemporary Marvel concepts. One was a villain called either “King Size” or “King-Size” (online resources differ on the punctuation, and I don’t think the story’s ever been reprinted in TPB); his real name was Hector Prynne; he was a parody of Hank Pym’s “Giant-Man” persona.
MARVEL: “Kingsize” is a villain; one of Ricadonna’s Rogues.

Kingpin/The Kingpin/King-Pin
DC: In 1951, a crime boss called “The Kingpin” put a bounty on Clark Kent’s head. About a year later, in “World’s Finest Comics #57,” Bruce Wayne was suspected of being the mysterious new crime boss in Gotham known as “Kingpin.” In a story published in 1967, we learned that the Earth-One Superboy once fought a gangster called “King-Pin.” Each of those three villains faded into obscurity after a single appearance.
MARVEL: It appears that “The Kingpin” has been used by three characters (including Matt Murdock), but it is most strongly associated with Wilson Fisk, who has often been — off and on since his debut — the most powerful crimelord in New York City.

Kismet
DC: A cosmic entity; their equivalent of Marvel’s “Eternity.”
MARVEL: An alias taken by the character previously known as “Her.”

Klang
DC: A robot who only appeared in one Silver Age story (it happened to be a Batman/Metal Men team-up).
MARVEL: Name used by a parody of the time-travelling villain “Kang” in at least one “What The–?” story.

Knight/Night
DC: At least two heroes have been “Knight.” First: Percival Sheldrake, Earl of Wordenshire, the “Knight” of the first “Knight and Squire” duo that consciously imitated the Batman/Robin duo in a story published in 1950. Second: Cyril Sheldrake, son and successor of the first Knight (having previously served as his father’s “Squire”). “Knight” also was a rank/codename in the original version of the Checkmate organization; several people were addressed that way at various times, including Roy Harper (who was then better-known as Speedy and has used other heroic aliases since then). There was also a “Night”; a Golden Age Quality villain who used “dream gas” when he was fighting Doll Man.
MARVEL: One “Knight” was an assassin who was part of the “Knight and Fogg” partnership that fought Spider-Man. At least two other “Knights” have also existed (with no connection to “Knight and Fogg”). Marvel has also had at least two or three minor characters who sometimes used “Night.”

Knockout
DC: Kay, a villainess, former member of the Female Furies of Apokolips; now dead.
MARVEL: Elizabeth Rawson, villainess, member of the Femme Fatales and the Femizons.

Know Man/Noman
DC: “Know Man” is a powerful entity who debuted in “Justice League: Midsummer’s Nightmare.”
MARVEL: “Noman” was the alias of a “What The–?” parody version of Jack Monroe (Nomad).

Komodo
DC: Villain who has fought the modern Secret Six.
MARVEL: Two users; one is a villain who apparently had just one appearance in the 1990s; the other is Melati Kusama, who became part of the Arizona Initiative

Krypton
DC: One of Mr. Element’s henchmen used this alias in a single story.
MARVEL: Presumably one of the Elements of Doom.

Lady Killer/Ladykiller
DC: “Lady Killer” was a Golden Age Fawcett villainess who fought Mr. Scarlet and Pinky.
MARVEL: “Ladykiller” was a female assassin; she was eventually rehabilitated to the extent that, while calling herself “Ladyfair,” she sacrificed her life in a heroic cause. “Lady Killer” is Elena LaBrava, an Ultraverse heroine; founding member and leader of “The Strangers.”

Lamprey
DC: Tayla Scott was a student at the Legion Academy, a thousand years in the future, in the Pre-Zero Hour version of “Legion of Super-Heroes” continuity.
MARVEL: Villain in Mark Gruenwald’s “Squadron Supreme.”

Lancer
DC: A Stormwatch member who died in action in the second issue of the first “Stormwatch” title.
MARVEL: On the Earth of “Heroes Reborn,” Doctor Doom gave powers to Samantha Dunbar and she became his loyal follower under this alias.

Landslide
DC: Temporary villainous “Dial H for Hero” alias of Nylor Truggs
MARVEL: Two users.

Lariat/The Lariat
DC: “The Lariat” was a villain who fought the Golden Age Vigilante.
MARVEL: “Lariat” was a mutant who appeared in one issue of “X-Treme X-Men.”

Lash/The Lash
DC: “The Lash” was a villain who fought the Golden Age Vigilante.
MARVEL: “Lash” was Elvis Colby, an Ultraverse character; one of the many victims of the anti-Ultra serial killer known as Rafferty.

Lava
DC: Superboy (Kon-El) fought a villain of this name in the late 90s.
MARVEL: One of the Hellbent.

Lead
DC: One of the original Metal Men.
MARVEL: One of the Elements of Doom.

The Leader
DC: Golden Age Quality villain who fought Plastic Man.
MARVEL: Samuel Sterns, a green-skinned villain who usually fights The Hulk.

Legion
DC: Villain who only appeared in the “Green Lantern: Emerald Dawn” mini.
MARVEL: Two users (not counting groups). One is Professor X’s son, who suffers from Multiple Personality Disorder. The other is or was a member of the Special Executive. Since the second guy’s power was to apparently “create” duplicates of himself, similar to what Madrox does, except that they were all himself pulled back from times in the future, and since one of his “duplicates from the future” got killed in the 1980s, it’s quite possible he’s dropped dead by now. (I don’t think that was ever confirmed, though.)

Leopard Girl
DC: Lois Lane called herself this in one Silver Age story when she was in Africa and had amnesia.
MARVEL: Used by a girl also known as “Gwen” in a short-lived “Jungle Action” title published in the mid-1950s.

Leviathan/LeViathan
DC: Two users of “Leviathan.” First: It was the heroic alias used by Gim Allon in the continuity of the Post-Zero Hour Rebooted Legion of Super-Heroes. (The original version of Gim was called “Colossal Boy.”) Second: George Calderon, villain who debuted during “52.” Also, I am told that the Post-Zero Rebooted version of Salu Digby (aka “Shrinking Violet” ended up sometimes calling herself “LeViathan” (yes, with a capital V) after Gim Allon had died a heroic death.
MARVEL: Many users.

Libra
DC: Villain who fought the JLA once in the 70s and then disappeared until the time of “Final Crisis.”
MARVEL: Several users, usually connected with one incarnation or another of the evil organization called Zodiac.

Light/The Light
DC: “The Light” was a villain who fought the Golden Age Sandman. Another “The Light” was a recurring villain in the adventures of the Golden Age Starman (Ted Knight). Furthermore, the Golden Age version of Luthor once called himself “The Light” in a clash with Superman.
MARVEL: Two users; one used “The Light” and the other was just plain “Light.”

Lightmaster
DC: Temporary “Dial H for Hero” identity of Chris King.
MARVEL: Edward Lansky, villain.

Lightning Bug
DC: Two villains. One fought Sargon the Sorcerer in the Golden Age. The other is a villain killed by The Red Hood (Jason Todd) and his friend Scarlet.
MARVEL: Two users; looks like each had just one appearance. One was a Morlock who died fighting Jean Grey.

Lightning Lord
DC: Mekt Ranzz, villain; brother of Lightning Lad and Lightning Lass of the Legion of Super-Heroes.
MARVEL: At least two users; one was also known as “the Lord of Living Lightning.”

Lilith
DC: A Golden Age Quality villainess used this name when she fought the Blackhawks. The more famous Lilith is a heroine; an occasional Titan who eventually started calling herself “Omen.” She’s currently dead (I think).
MARVEL: Daughter of Count Dracula; villain.

Lionheart
DC: Richard Plante, a distant descendant of the old Plantagenet dynasty, who became a hero working for the British government during the “Bloodlines” event.
MARVEL: Two or three users.

Lion-Mane/Lionmane
DC: At least 2 users of “Lion-Mane” — one was a man who fought Silver Age Hawkman; one was a woman who fought Hawkman, post-Zero Hour. Also, there was a “Lionmane” villain who fought the Earth-Two Huntress, Pre-COIE.
MARVEL: “Lionmane” has been used as an alias by Lo Chien, an evil warlord.

Livewire/Live Wire
DC: “Live Wire” was the heroic alias used by Garth Ranzz in the Post-Zero Hour Reboot version of “Legion of Super-Heroes” continuity (Pre-Zero Hour, he was known as “Lightning Lad”). “Livewire” is Leslie Willis, a Superman villain.
MARVEL: “Livewire” is Rance Preston, villain; member of the Circus of Crime.

The Lizard
DC: Two users. One was a Golden Age villain who fought Green Lantern (Alan Scott). The other was a gang leader who once fought the Metal Men and hasn’t been heard from since.
MARVEL: Alter-ego of Curt Connors, a Spider-Man villain (although usually a nice guy when in his standard human form).

Lockup/Lock-Up
DC: “Lock-Up” is Lyle Bolton, villain.
MARVEL: “Lockup” was a Brood Mutant who died fighting the X-Men.

Lodestone
DC: Rhea Jones, heroine; served with the Doom Patrol. There was also a Lodestone who was part of Wildfire’s Legion in the 75th Century (according to the Post-Zero Hour Rebooted version of Legion of Super-Heroes continuity).
MARVEL: Villainess who fought Darkhawk.

Long Shot/Longshot
DC: “Long Shot” was the military codename or nickname of a convict who was recruited for the WWII-era special unit of the U.S. Army known as “Hunter’s Hellcats.”
MARVEL: A few users of “Longshot”; the best-known is the incredibly lucky guy from the Mojoverse who has served with the X-Men and the Exiles.

Looter/The Looter
DC: “Looter” was a villain who fought Kamandi; died.
MARVEL: Three users of “The Looter.” One was a Golden Age villain who fought Captain America; one was a Wild West villain who fought the Two-Gun Kid; one is a Spider-Man villain who later changed his alias to “Meteor Man.”

Lord Chaos
DC: Son of Donna Troy and Terry Long in an alternate future timeline where he grew up to be a world-conquering tyrant.
MARVEL: A cosmic entity.

Lucifer
DC: A few people have used this at different times. For instance, one villain called “Lucifer” fought Blue Devil in the 1980s and then died.
MARVEL: An alien who crippled Charles Xavier long before he formed his first X-Men team.

Lynx
DC: Teenage villain who formerly worked for King Snake and often fought Robin. (She’s already died, come back from the dead, and died again — I think she’s still dead at the moment.)
MARVEL: At least three.

Macro-Man
DC: Gigantic artificial body built on Apokolips and directed by the mind of the New God known as “Doctor Bedlam” or “Baron Bedlam”; the body was destroyed while fighting Captain Marvel (Billy) in the “Legends” miniseries, but Bedlam survived.
MARVEL: A set of five robots owned by the Canadian military which could merge into one super-robot. This “Macro-Man” appeared in one “Alpha Flight” story in the 1980s and hasn’t been heard from since.

Mad Dog
DC: Villain who fought Cassandra Cain in the final issues of her “Batgirl” series.
MARVEL: Several users; best-known is probably Buzz Baxter, the ex-husband of Patsy Walker (Hellcat).

The Mad Hatter
DC: Two users. The original Mad Hatter is Jervis Tetch, a Batman villain, who first appeared in the Golden Age. According to a retcon in the early 1980s, “The Mad Hatter” who had fought Batman a few times in previous Silver Age/Bronze Age stories had actually been an impostor; not Jervis himself.
MARVEL: An actor hired by the villainess “The White Rabbit” to pose as a supervillain ally of hers.

Madam Satan
DC: An Archie/MLJ Golden Age villainess; had her own feature; worked for the Devil.
MARVEL: Villainess who appeared in at least one Golden Age story as a superpowered minion of “The Devil” who resides in “Hades.”

Madam X/Madame X
DC: “Madam X” is used as an alias by Maria Romero, mayor of Gotham City, in a graphic novel set in an alternate future: “Batman: Digital Justice.” There is also a villainess called “Madame X” who fought the modern Batman when she was trying to poison Gotham’s water supply. (No connection between the two women, as far as I know.)
MARVEL: “Madame X” is an alias used by Nina Vladimirovna Tsiolkovsky, a Communist spy.

Madman/The Madman
DC: “The Madman” was a MLJ villain who fought The Web in the Silver Age.
MARVEL: “Madman” is Phillip Sterns, villain; he happens to be the brother of Samuel Sterns (The Leader). “Madman” was also a nickname used for old-time criminal Michael McHooey, a Night Raven foe.

Maelstrom
DC: A female slave laborer from Apokolips who hoped to rip off Superman’s head in order to prove her love and devotion for Darkseid (and perhaps even win Darkseid’s love in return). Maelstrom failed in that quest, but was strong enough to whip Supergirl the first time the two characters tussled.
MARVEL: A villain who is the result of an Inhuman/Deviant romance.

Maestro/The Maestro
DC: I’m not sure of these details, but I’ve been told that at least four different DC villains with musical themes have called themselves “Maestro” or “The Maestro” at some point; two of those also were called “The Mad Maestro.” A Golden Age Quality villain who fought someone called “Swing Sisson” may be a fifth user of the name.
MARVEL: An evil future version of the Hulk. The name was also used by “modern Hulk” when an evil personality took over his body at one point.

Magneto
DC: Two users. One was a temporary “Dial H for Hero” identity of Robby Reed. One is a villain; a member of “the Awesome Threesome” group which fought Aquaman in the Silver Age.
MARVEL: The first villain the X-Men ever fought.

Magno Man/Magno-Man
DC: “Magno Man” is a Charlton villain who fought Dan Garrett (Blue Beetle) in the 1960s.
MARVEL: “Magno-Man” was bred by the Skrulls of Kral and once fought the Fantastic Four.

Magog
DC: The first user was a Golden Age Quality villain who fought Doll Man. The second is a ruthless vigilante introduced in the possible future of “Kingdom Come” (which is now stated to have happened on an alternate Earth of the New Multiverse). More recently, in the JSA comics, Lance Corporal David Reid became “Lancer” of the JSA, and then, after dying, was turned into “Magog” — probably supposed to be the same guy as the “Kingdom Come” character, or at least an alternate-timeline-analog of him.
MARVEL: At least two. One was a demon who fought the Hulk once. One apparently lives in the Mojoverse.

Magpie
DC: At least two users. One was a professional thief in the 30th Century who tangled with the Legion of Super-Heroes in their original continuity in the 80s. The other is Margaret Pye, villainess; now dead.
MARVEL: Two users.

The Maha Yogi/The Mahayogi
DC: “The Mahayogi” was a member of the Cadre of the Immortal.
MARVEL: “The Maha Yogi” is one of the aliases of an evil sorcerer, thousands of years old; he has also been called “Merlin Demonspawn” and “The Mad Merlin” due to his habit of impersonating the “real” Merlin who served King Arthur in Camelot.

Major Domo
DC: A villain who appeared in one issue of the original “Omac” series by Jack Kirby.
MARVEL: A personal assistant to Mojo in the Mojoverse.

Major Victory
DC: According to Wikipedia, either two or three men, all working for agencies of the U.S. government, have worn flagsuits and called themselves “Major Victory.” Apparently so little is known about the second user that he may or may not be the same as the (third?) user who popped up after “Infinite Crisis” as part of the team “Freedom’s Ring.”
MARVEL: In “Guardians of the Galaxy” continuity, the version of Vance Astrovik (or “Vance Astro”) who lives 1000 years in the future eventually started carrying Captain America’s old shield and calling himself “Major Victory” as a regular thing.

Malice
DC: Villainess; daughter of Vermin Vunderbarr of Apokolips.
MARVEL: Six users.

Mammoth
DC: Baran Flinders, villain; founding member of the Fearsome Five.
MARVEL: Four users.

Man O’War/Manowar
DC: Two villains use “Man O’War.” One is Atlantean; one is an alien who has fought Captain Atom.
MARVEL: “Manowar” is an Atlantean villain; member of Fathom Five.

Man-Ape
DC: Villain who first fought Captain Comet in a 1952 story.
MARVEL: M’Baku, a Wakandan villain.

The Mandarin
DC: Golden Age MLJ villain who fought The Fox.
MARVEL: Two users. The first is one of Iron Man’s major enemies; he wears ten rings which give him all sorts of nifty powers. At one point, when the first guy was believed dead, his son Temujin inherited the role.

Mandroid/The Mandroid
DC: “The Mandroid” fought the Challengers of the Unknown (and was destroyed) in a Silver Age story.
MARVEL: A parallel world analog of Johnny Storm had been turned into a “living robot” called “Mandroid”; the name might also be applied to any wearer of “Mandroid” armor; a design originally produced by Stark International.

Man-Fish
DC: Juan Vallambrosa, an occasional ally of the Sea Devils in their Silver Age stories.
MARVEL: Villain who was created by Arnim Zola and fought Captain America.

Mangler/The Mangler
DC: Golden Age Quality villain who fought Plastic Man. There was also a crook who called himself “The Mangler” when he met Superman in one Silver Age story.
MARVEL: Three users.

Manhunter
DC: Lots and lots and lots of them.
MARVEL: Bounty hunter who went after Kid Colt in the 19th Century.

The Manikin/The Mannikin/Mannequin
DC: “The Manikin,” first name Miranda, was a Batman villainess in a two-part story in 1981. Hasn’t been heard from since? “The Mannikin” was a wooden creature which fought The Demon (Etrigan) in the 1970s and was soon destroyed; never reappeared.\
MARVEL: “Manikin” has been used twice. Most notably by Whitman Knapp, hero, trained in Canada’s Beta Flight program; became a regular face in the original “Alpha Flight” series in the late 80s and 90s. “Mannequin” has also been used at least twice; once by an Ultraverse character who was apparently the composite of three people and a couple of other things thrown into the mix.

Manta
DC: Villain; one of the Dogs of War who fought the Doom Patrol.
MARVEL: Member of the Shi’ar Imperial Guard.

Manticore
DC: Four users.
MARVEL: Villain who has worked for the Brand Corporation.

Mantis/The Mantis
DC: “Mantis” is a New God from Apokolips. “The Mantis” was a Golden Age Quality villain who fought Doll Man.
MARVEL: “Mantis” served with the Avengers before she became the Celestial Madonna.

Manx
DC: Hero; member of the Justice Experience team back around the 1970s (according to retcons in the 90s); died in the line of duty.
MARVEL: A savage, feral creature bred from Hellbent stock; apparently killed by Slaine.

Marauder/The Marauder
DC: “The Marauder” was a villain who fought the Earth-One Superman a few times.
MARVEL: At least two users; one was the character who was the combined essences of “Team America” (or “The Thunderriders”); that combined entity was also known as “Dark Rider.”

Marionette/The Marionette
DC: Temporary “Dial H for Hero” alias of Barry Allen. Years later, Chris King and Vicki Grant (in their own “Dial H for Hero” days) fought a villainess of this name who died in her first appearance.
MARVEL: A heroine who debuted as a member of the Micronauts in the Marvel comic books based on a line of action figures; however, this character was created and owned by Marvel and they have continued to use her in new stories after their license for the Micronauts ended. (I am told that her group of fellow adventurers is now referred to as “the Microns” if it is mentioned at all.)

Marvel Man/Marvelman
DC: “Marvel Man” was a Superman-analog on a distant world strongly resembling Earth (it was creatively called “Terra”) in the same universe as Earth-One of the Pre-COIE DC Multiverse. I say “analog” because he had much the same face and power set, but his origin story was different; no Kryptonian blood in him, nor in his cousin, Marvel Maid (a Supergirl analog, except that she was the mentor-figure who was much more experienced in the heroic use of her powers than her cousin). Marvel Man, also known as “Ken Clark,” appeared in a two-part story in the Silver Age and has never been heard from since.
MARVEL: Apparently “Marvel Man” has been used by Wendell Vaughn and by Vance Astrovik at different times. Also, Marvel has recently bought at least some of the rights (I’m not prepared to say “all the rights, beyond a shadow of a doubt!”) to a character who debuted in the UK in the 1950s as “Marvelman” but who, in American publications of much later stories written by Alan Moore and others, was renamed “Miracleman.” (As I understand it, Marvel doesn’t have the rights to any of the stories from the 1980s and 1990s.)

Mask/The Mask/Masque
DC: In the Golden Age, each of the following heroes (or a heroic duo, in one case) fought a different villain called “The Mask.” From Fawcett: Spy Smasher; the Mr. Scarlet/Pinky duo. From Quality: Plastic Man; Doll Man. From DC: Johnny Quick; Zatara; Hourman; Wonder Woman; Green Arrow. One user came along a bit later and was not so villainous as his predecessors: in a 1954 Superboy story (which you may or may not regard as “Golden Age” material), Superboy met a mysterious figure who wore a lead mask and called himself “The Mask” while using his knowledge of Clark Kent’s secret identity to compel Superboy to do certain tasks. This mysterious figure turned out to be Pa Kent, as part of the set-up for a surprise birthday party. Since that time, “The Mask” seems to have become far less popular as an alias, although a magical duplicate of Nina Close (she was “The Mask” who had previously fought Wonder Woman) appeared in a Silver Age JLA story, and what appears to be a Reboot of that same character concept has appeared in modern Wonder Woman continuity.

MARVEL: Two users of “Masque.” The more famous was a villainous Morlock who had the ability to do the equivalent of advanced plastic surgery by just running his hands over your flesh and reshaping you to his own specifications; he is now dead. The other “Masque” was a “bioduplicate” of Madame Masque. Also, it appears that Emalia, wife of the villain Boneyard in the Ultraverse, sometimes called herself “Mask”; she is now dead.

The Masked Marauder
DC: Villain who fought Ted Kord in a Charlton story in the 1960s.
MARVEL: Frank Farnum, villain.

The Masked Marvel
DC: In a 1954 story, Superman met a pro wrestler who used this as his professional alias. (Note: From online research, I gathered that this has actually been a very popular alias for pro wrestlers in the real world; a tradition which began decades before the Superman story was published.)
MARVEL: Adam Austin is “The Masked Marvel,” a hero featured in two short stories published in the last pages of “X-Men #187″ and “X-Men #189.”

Masquerade
DC: A Milestone character.
MARVEL: Member of Elektra’s Order who quickly got himself killed after he debuted.

The Master
DC: At least one DC villain had the habit of just calling himself “The Master”; he made a lot of trouble for Chris King and Vicki Grant during their “Dial H for Hero” days, and was finally revealed as the evil half of Robby Reed, a previous user of an H-Dial. There were also two Golden Age MLJ villains who used this alias; one fought The Comet and the other fought Bob Phantom; both seem to have died in their first (and only) appearances.
MARVEL: Marvunapp.com believes at least two characters formed the habit of calling themselves “The Master” as a complete working alias.

Note: Of course I’m ignoring a zillion cases from both companies where a character has often been addressed or spoken of (perhaps by students or henchmen) as “Master” or “The Master,” even though his official alias was either a) something entirely different, or b) only included the word “Master” as part of a longer string.

Master Man
DC: Two of them. First: A Golden Age hero they acquired from Fawcett and allegedly have never used at all since they got him! Second: A Golden Age Quality character who was basically the evil equivalent of the hero Kid Eternity.
MARVEL: A diehard Nazi villain.

Master Mind/Mastermind/The Mastermind
DC: “The Mastermind” is a villain who fought Green Arrow in one Silver Age story. “Mastermind” (I think he didn’t use “The”) is a villain who appeared in some comic books set in the world of the DCAU; he usually was working with (or competing with?) Mister Nice and The Perfesser. “Master Mind” was a Golden Age MLJ villain who fought the team of The Shield and The Wizard.
MARVEL: At least five users; apparently most or all of them don’t habitually use the definite article. Probably the most famous is Jason Wyngarde, villain; he was a founding member of the original Brotherhood of Evil Mutants and later played a key role in the legendary Dark Phoenix Saga. At last report, he was dead of the Legacy Virus. (Two other users of the alias are Jason’s daughters, by the way.)

Match/The Match
DC: “The Match” was an arsonist who once fought the Golden Age Batman. Another “The Match” was a Golden Age Quality villain who fought their Manhunter (Dan Richards). “Match” is a clone of the modern Superboy.
MARVEL: “Match” is Ben Hammil, a student at the Xavier Institute.

Maul
DC: Jeremy Stone, Wildstorm hero; founding member of the WildC.A.T.S.
MARVEL: Jamal Peoples, one of the early members of “the Order” which was organized as part of the USA’s 50 State Initiative; then he was kicked off the team on a morals charge.

Mauler
DC: DeMarcus Chapelle, a veteran soldier who became a member of the Phantom Limbs.
MARVEL: At least six users (not counting a couple of groups called “the Maulers”).

Maverick
DC: Callsign of a U.S. Air Force pilot who first appeared in “Captain Atom #1″ in 1987.
MARVEL: Two users. The first was Christoph Nord, apparently a hero; the second was a mutant villain who impersonated the first and then was killed.

Maximus
DC: A Pre-Crisis villain who once fought the Earth-One Wonder Woman; his plan was to steal all her charisma and implant it in himself (but some of it would go into android doubles of himself, instead — please don’t ask me how or why he intended to achieve that).
MARVEL: The evil brother of Black Bolt of the Inhumans.

Maya
DC: Chandi Gupta, heroine from Bombay; in the 1990s she became a member of the Justice League International at the tender age of 13.
MARVEL: At least three users. One is the Inhuman who served as nanny to Luna.

Megaton
DC: Temporary “Dial H for Hero” identity of the Pre-Crisis version of Pete Ross.
MARVEL: Jules Carter, villain, dead.

Membrane/Membrain
DC: “Membrain” was a member of Wildfire’s Legion in the 75th Century.
MARVEL: One user of “Membrane” and one of “Membrain.”

Menace/The Menace
DC: “The Menace” was a Golden Age villain who fought John Zatara.
MARVEL: “Menace” is Lily Hollister, villainess.

Mentor
DC: Robot villain who fought Blue Beetle (Ted Kord) in a Charlton story in the 1960s.
MARVEL: Looks like three users; one is A’lars, leader of the Eternals of Titan.

Mercury
DC: One of the original Metal Men. It was also the name of a costumed criminal who worked as part of a group called “the Sun and his satellites” in a single Golden Age story; they were fighting Starman (Ted Kord) at the time. There was also a Golden Age villain (“Trick Tate”) who posed as the mythological Mercury and did it well enough that he tricked Johnny Quick into divulging his super-speed formula.
MARVEL: Numerous users. One of the Elements of Doom. Also a superheroic alias used by Makkari the Eternal in the 1930s/1940s. And there were others.

Merlin/Merlyn
DC: “Merlyn” is an archer villain who has tangled with Green Arrow. He was also on Zandia’s Olympic Archery Team in the 2000 Summer Olympics. In addition, “Merlin” is a name Baron Winters uses for his leopard when conversing with it — we never understand the leopard’s responses, but Winters evidently does, so I assume it qualifies as “a sentient person.”
MARVEL: Several characters have reportedly used the name “Merlin” at one time or another; whichever Merlin was actually King Arthur’s court magician would be disqualified under my rules (public domain and all that), but the various imitators who are just “original Marvel characters swiping the name of a legendary figure” are each qualified for this list.

Mermaid
DC: A heroine in the world of “Kurt Busiek’s Astro City” who was active back around the 1970s.
MARVEL: A woman who served with a new X-Men team in the “Earth X” timeline.

Merman
DC: “Merman” was a villain who fought the Golden Age Flash. Another “Merman” was a member of a trio called “the Band of Super-Villains” which clashed with Superman, Batman, and Robin in a single Silver Age story. Another “Merman,” probably a Sub-Mariner parody, is a superhero on Earth-6 of the New Multiverse.
MARVEL: Alias used by an alternate timeline analog of Namor (as seen in “Avataars”).

Mess/The Mess
DC: “The Mess” was Meyer Qayd, who once tried out for the Silver Age Legion of Super-Heroes and was rejected. Never heard from since?
MARVEL: Nicole Martin, a member of the Gamma Corps.

Metalhead/Metal Head
DC: “Metalhead” was a villain who fought Batman in the early 90s.
MARVEL: “Metalhead” is a hero; member of the X-Men 2099. “Metal Head” is a villain.

Metalo/Metallo
DC: “Metalo” was a Golden Age villain in an armored suit who fought the Earth-Two Superman. “Metallo,” both Pre- and Post-COIE, has been a villain whose brain was transplanted into an artificial body powered by Kryptonite; he also fights Superman.
MARVEL: “Metallo” is Mike Fallon, a criminal.

Midnight
DC: Two users. First was Dave Clark, a Golden Age Quality Comics hero (created by Will Eisner, with what I hear was a strong resemblance to Denny Colt, The Spirit). April Clarkson recently debuted as a new Batman villainess using the same name.
MARVEL: Several users.

Mikado/The Mikado
DC: “The Mikado” is a villain who once fought the original Question.
MARVEL: “Mikado” is a Japanese woman who has helped Blade hunt vampires.

Mind-Master
DC: Villain who fought the Blackhawks in a Silver Age story.
MARVEL: Two users; both obscure villains, I gather.

Mind-Monster/Mind Monster
DC: “Mind Monster” was a Golden Age Quality villain who fought Doll Man.
MARVEL: The “Mind-Monster” was a creature once summoned up by “Merlin” or “Merlyn” to test Captain Britain’s courage.

The Mink
DC: Villain, member of Shadow Force; died in the first issue of “Hitman.”
MARVEL: In the parallel world which is home to Marvel’s first version of the Squadron Supreme, “The Mink” was the functional equivalent of DC’s Catwoman (with Kyle Richmond, aka Nighthawk, in the Batman role). It seems she hasn’t been heard from since Gruenwald’s miniseries ended.

Mirage
DC: At least three. An obscure Batman villain. Later: Miriam Delgado, heroine. And there was also a heroine of this name in the timeline of “Kurt Busiek’s Astro City”; she was active back in the 1970s.
MARVEL: At least two. Desmond Charne, villain, dead. Also an alias of Danielle Moonstar, heroine.

Mister Sinister
DC: Villain from the fourth dimension who fought the Golden Age Superman.
MARVEL: Nathaniel Essex, villain who has given the X-Men and their allies some very bad times; now believed dead.

Misery
DC: According to at least one online resource, a character in “Superboy and the Ravers” used this name; I haven’t been able to pin down any personal details.
MARVEL: Three users. One was a member of the Hellbent; may be dead. One fought Spider-Girl in the MC2 timeline. One fought the Ghost Rider of the 2099 timeline.

Misfit
DC: Charlotte Gage-Radcliffe, hero; initially called herself “Batgirl” before settling for this name instead.
MARVEL: Villain. A client of the Power Broker who ended up superhumanly strong but also looked deformed; became a member of the Night Shift.

Miss America
DC: A Golden Age heroine DC acquired from Quality; Joan Dale, who later married Derek Trevor, according to Post-COIE continuity. (Note: I hear she is still alive and youthful-looking today, and has recently renamed herself “Miss Cosmos.”)
MARVEL: A Golden Age heroine named Madeline Joyce; later married the Golden Age Whizzer (Robert Frank). Now dead.

Mist/Myst
DC: A Golden Age Starman villain and his daughter Nash have both used the alias “The Mist” (or perhaps sometimes just “Mist”). Another “The Mist” was a Golden Age MLJ villain who fought The Black Hood. There was also a “Myst” who was a member of the demon-hunting group called the Hell-Enders.
MARVEL: “Mist” is either the real name or else an adopted alias of a Valkyrie who is part-Faerie on her mother’s side; I favor the “alias” theory. (Valkyries usually have such names as “Brunnhilde” and “Geirahod” and “Sigurdrifta,” so you can see why I question whether the simple word “mist” was the authentic birth-name of the character.)

Mister Big
DC: Three users; all villains. One fought the Golden Age Green Lantern (Alan Scott). One debuted in the alternate future timeline of the original OMAC stories by Jack Kirby. The third user has tangled with the modern Superboy (Kon-El).
MARVEL: Two; one was a bad guy in the 1930s; one was Frederick Foswell in his “Ultimate Universe” version. (In the original Silver Age Spider-Man continuity, Frederick Foswell was once the crimelord known as “The Big Man”).

Mister E.
DC: A blind man with various mystic abilities and unpredictable changes of personality.
MARVEL: A native of the Shadow Realm who fought Captain Universe (Steve Coffin at the time) and apparently died as a result.

Mister Green
DC: Two Golden Age villains. One was a Fawcett villain; he was a green-clad archer. The other was a Quality villain who fought Plastic Man; he was a green-skinned mad scientist who was determined to help the plant world rise up against the tyranny of human domination; he died in his first appearance.
MARVEL: At least two characters have used this as an alias. One is a criminal in New Orleans who allegedly is called this because he always knows where the money is. The other was Bruce Banner (Hulk); he went through a phase where he consistently used this as his online alias whenever he communicated with a mysterious friend called “Mister Blue.”

Mister Hyde/Mister Hide
DC: Golden Age Fawcett villain who fought Mr. Scarlet and Pinky.
MARVEL: Calvin Zabo, villain. In one “What The–?” story, a parody of Calvin was called “Mister Hide.”

Mister Justice
DC: A Golden Age MLJ hero.
MARVEL: Hero; member of the First Line; believed to have died (along with several teammates) in the explosion of a Skrull warship in the miniseries “Marvel: The Lost Generation.”

Mister Magic/Mister Magik
DC: “Mister Magic” was a villain who joined the “New Rogues”; he was killed (as were the rest of the team) by the “Old Rogues” (veteran Flash villains) in a showdown. Also: Asquith Randolph used several aliases throughout his career; in the 1940s he was known as “Mister Magik” (according to retcons in the 1990s), but he was using “The White Magician” by the time Wonder Woman (Diana) met him. Diana later killed Randolph in the same battle in which he mortally wounded Artemis, the replacement Wonder Woman. (Artemis would later make a complete recovery from her slight case of death, but Randolph doesn’t seem to have been as lucky.)
MARVEL: “Mister Magic” was a villain who got just one appearance; the Mayhem Organization paid him to fight Team America.

Mister Marvel
DC: Extraterrestrial villain who appeared in a single Silver Age Batman story.
MARVEL: Villain; he was a high-wire performer in the Circus of Crime which fought Kid Colt in the Old West.

Mister Menace
DC: An alias used in at least one story by the criminal who previously had been the Golden Age villain known as “Sportsmaster.”
MARVEL: A character whom Franklin Richards briefly brought to life from a “Protectors of Peace” comic book.

Mister Mind
DC: Originally a Fawcett character; a telepathic green worm who fights Captain Marvel.
MARVEL: Mercenary who fought Team America once.

Mister Murder
DC: Golden Age Fawcett villain who fought Bulletman and Bulletgirl.
MARVEL: Mercenary assassin who was killed by Agent X.

Mister Muscle
DC: One of several aliases used by Sturgis Butterfield, a member of the Hero Hotline group.
MARVEL: Villain who was working for the Mayhem Organization when he fought Team America (apparently his only appearance).

Mister Nice
DC: Very soft-hearted villain who apparently only appeared in comic books set in the continuity of the TV shows of the DCAU (but never in the TV shows themselves!).
MARVEL: A villain who worked for Arcade at least once; his power is to induce fear, I gather.

Mister Nobody
DC: Villain who has fought the Doom Patrol.
MARVEL: Criminal in the MC2 timeline.

Mister Paradox
DC: Golden Age villain who fought Alan Scott (Green Lantern).
MARVEL: An employee of the Time Variance Authority — until he was erased from history by the villain Clockwise.

Mister Sinister
DC: Purple-skinned alien from “the fourth dimension” who once tangled with the Golden Age Superman.
MARVEL: Nathaniel Essex, a villain who gave the X-Men and their allies considerable trouble on many occasions; he is now believed dead.

Mister X
DC: Two villains each used this name in different Golden Age stories about the JSA. Two other villains each used this alias in later Batman stories. (As near as I can tell, none of these guys were trying to imitate a previous user; each repetition was just coincidence.)
MARVEL: At least two users; one was a professional wrestler.

Mister Zero
DC: Three users. A Golden Age villain of this name once fought Johnny Quick. In the Silver Age, The Martian Manhunter once used this alias when posing as a master criminal. In a Batman story published about a year later, this was the first criminal alias used by Victor Fries, who later became notorious as “Mister Freeze.”
MARVEL: In a single issue of “Journey Into Mystery,” we met a real estate agent who called himself “Mister Zero.” He appeared to have ghostly powers, but there was never any follow-up to tell us any solid details of his origin story, capabilities, and vital status. I suspect “Mister Zero” was an alias, but I don’t even know that much for certain.

Mockingbird
DC: This alias has been used by what appear to be at least five different people, each of whom was the mysterious director of one “Secret Six” roster or another. Lex Luthor was the fourth user (during the “Villains United” mini in 2005); the fifth user has been revealed to us (but apparently not to the current Secret Six) as Amanda Waller.
MARVEL: Bobbi Morse, heroine who married Hawkeye.

Mole/The Mole
DC: Four users of “The Mole.” One was a temporary “Dial H for Hero” identity of Robby Reed. One was a villain who fought the Blackhawks. The other two were villains who were active in the Earth-One continuity, Pre-COIE; I don’t know that either has ever been confirmed as part of the Post-COIE DCU. (Since those last two I mentioned both debuted, decades apart, in stories involving Superman, and since Superman’s continuity got rebooted after COIE, there is plenty of room for reasonable doubt regarding their continued existence.)
MARVEL: Three users.

Molecule Man/The Molecule Man
DC: “The Molecule Man” was a Silver Age villain who fought the Blackhawks. “Molecule Man” was a temporary “Dial H for Hero” identity of Chris King.
MARVEL: “The Molecule Man” was Owen Reece, who started as a villain, but improved himself in the 1980s.

Moloch
DC: Character in the “Watchmen” timeline who was a villain for many years, but had left all that behind by 1985 (when the main action of the story was set).
MARVEL: Name used by one or two demons, and also by a mind-controlling, tentacled creature in the Ultraverse.

Monitor/The Monitor
DC: The character known as “The Monitor” was the living embodiment of all the positive-matter universes in the Old Multiverse of DC continuity. He was a pivotal figure in “Crisis on Infinite Earths” (and died during it). We were supposed to see him as heroic, although I’ve never been too clear on why, in a 1983 story, he was seen working as a broker for a Mafia boss who wanted to hire a bunch of cold-blooded killers to ambush (and hopefully kill) the New Teen Titans. Post-”Infinite Crisis,” a whole bunch of other Monitors have appeared in various stories, but I’m not clear on how many of them (if any) have formed the habit of simply introducing themselves to other people as “I’m the Monitor” or “Just call me ‘Monitor,’” as if it were a name instead of a job description.
MARVEL: “Monitor” was a name used for a mutant child who was abducted by the villainess Nanny during the big “Inferno” event (which ran through the mutant titles back in 1988).

Monkey
DC: Villain; one of the Twelve Brothers in Silk; recently got himself killed by his sister, who is now known as “White Canary.” (In fact, she killed all twelve of her brothers.)
MARVEL: At least two users. One was a member of China Force who defected; another was a Vietnamese sniper who fought Frank Castle (before Frank became famous as The Punisher, I gather).

Monocle/The Monocle
DC: Two Golden Age villains each used “The Monocle.” One of them fought Flash (Jay Garrick), and the other fought Hawkman (Carter Hall).
MARVEL: Two users.

The Monolith
DC: A golem with a childlike personality who follows the lead of Alice Cohen and tries to be heroic; The Monolith had his own title for 12 issues.
MARVEL: A gigantic, incredibly strong and durable entity which once fought the Avengers and their temporary ally Bloodhawk. When last seen, The Monolith had been mystically rendered inert and was being sent through a dimensional portal (opened by Thor) as a quick way to get rid of it. Nobody knows what it’s been doing since then. (Possibly nothing whatsoever, if the magic that made it inert is still in force.)

Monsoon
DC: Two users. One is a villain who has fought Batman and several other “Batman Family” superheroes at different times. The other is Sergeant Hector Lopez, who is usually seen working as the desk sergeant in a police station in the ABC “Top 10″ comics.
MARVEL: Aloba Dastoor, a mutant character who only appeared in two issues of the original “X-Factor” title; his powers were similar to Storm’s (weather control).

Monster/The Monster
DC: “The Monster” was a villain who fought the JSA in the Golden Age (and apparently died in his first story, but later was dusted off for further use in the 1980s). Two other users of “The Monster” were Golden Age MLJ villain who each fought The Wizard at different times (no other connection between them, though). Yet another “The Monster” was a villain who once fought Jack Ryder (The Creeper) in the 1970s. A small girl known as “Becky” is capable of transforming into a huge, strong, dumb monster, imaginatively known as “Monster,” in the alternate timeline of the Maximums. (She is a thinly veiled knockoff of the Incredible Hulk.)
MARVEL: Several users.

Monster Master/Monster-Master
DC: “The Monster Master” is a villain who debuted in a Silver Age story (fighting Steel Sterling, one of the MLJ heroes).
MARVEL: “Monster Master” was a Japanese villain who fought Iron Man and died. “Monster-Master” either fought Ben Grimm on Battleworld, or else was a figment of Ben’s imagination; take your pick!

Moon Man/The Moon Man/The Moonman/
DC: The first “The Moonman” was leader of a gang which fought the Golden Age Starman. Another “The Moonman” fought Superman, Batman, and Robin in one Silver Age story. Erick Bolton, a villain who fought Robby Reed in two Silver Age “Dial H for Hero” stories, used “Moon Man” in his second appearance (having previously been “Mister Thunder”).
MARVEL: At least three users of “The Moon Man,” including an Ultraverse villain who fought Solitaire.

Moonglow
DC: Golden Age villain who fought the Star-Spangled Kid and Stripesy.
MARVEL: Two heroines in the world of the original “Squadron Supreme” continuity have used this alias; the second user was Arcanna Jones, pretending to be the first user so she’d be allowed to tag along on a dangerous mission. (Arcanna was basically the Squadron’s Zatanna-analog.)

Morning Star/Morningstar
DC: In 2001, in the first issue of Wildstorm’s “The Monarchy,” all but two members of a 10,000-member team called “The Throne” had just been killed. One of the two survivors was the hero “Morningstar.” In the continuity of “Kurt Busiek’s Astro City,” “Morningstar” was a villain who fought the original Jack-in-the-Box way back in the 1970s. (We don’t seem to know anything more recent about that villain.)
MARVEL: “Morningstar” was the alias of Marya Meshkov, who debuted in the early 1990s as one of “the Bogatyri” — they were a group of diehard Communist superhumans who hated the recent fall of the Soviet Union and wanted revenge on the USA. “Morning Star” was used by a short-lived villain who was part of a group that fought Moon Knight and The Werewolf (Jack Russell) way back when.

Mortician/The Mortician
DC: “The Mortician” was making zombies in an attempt to find the way to restore his own parents to life. But he gave it up after Batman explained that one of his zombies had been used for murder by someone else.
MARVEL: “Mortician” was a voodoo leader who debuted and died in “Punisher: Die Hard in the Big Easy.”

The Moth
DC: Three users. The first was a Golden Age Quality villain who fought Miss America. The second was the costumed leader of a gang of thugs in one Silver Age story; his gang tangled with Batman, Batwoman, Robin, and Bat-Girl. “The Moth” was also a temporary “Dial H for Hero” alias of Chris King.
MARVEL: Mercenary villain who once fought the Human Torch and then was killed by his own criminal employers.

Mouse
DC: Mercenary computer-hacking woman who dresses like a mouse; Giz is her partner.
MARVEL: Looks like at least five users.

Multiple Man/Multiple-Man
DC: “Multiple-Man” was a superhero from another world who once teamed up with the Silver Age Supergirl. “Multiple Man” was a Silver Age villain who appeared in “Impossible Tales” which showed Wonder Woman, Wonder Girl, and Wonder Tot (all supposedly the same Amazon heroine at different ages) fighting him. These tales were supposedly forged by splicing together film footage from different points in Diana’s life. Does that mean there was already honest-to-goodness film footage of the Earth-One Diana fighting a living, breathing villain named “Multiple Man” at some point, and the splicing only served to make it look as if three versions of Diana had been simultaneously present in such a fight? I don’t know!
MARVEL: “Multiple Man” is an alias of Jamie Madrox.

The Murder Machine
DC: Name of a robot used by the Nazis to capture the Golden Age heroes Green Lantern and Flash in 1940 (as revealed in retcons published decades later).
MARVEL: Name of a robot which Psycho-Man once sent to fight the Fantastic Four; it was giving them a very hard time until The Silver Surfer conveniently came along to disintegrate it.

Murmur
DC: Two. One a demon; one a Flash villain.
MARVEL: Three users.

Muse/The Muse
DC: Three villains have used “The Muse.” One fought Batman and Robin in a Hostess cupcake ad in some comic books in the 1970s. The other two debuted in the 1980s; one fighting Blue Beetle (Ted Kord) and the other clashing with the Titans.
MARVEL: At least four users; I’m not clear on how many of them used “The Muse” as opposed to just “Muse.”

Mysterio
DC: Alias briefly used by a Silver Age Superboy Robot covered with bandages.
MARVEL: Quentin Beck invented the role as a Spider-Man villain. At least two other villains have copied him.

Naiad
DC: Two users.
MARVEL: Two users. One is an Ultraverse villainess; member of TNTNT. The other is Aurelie Sabayon, one of the training squad “the Advocates” at the Xavier Institute; he drowned after losing his powers on M-Day.

The Nameless One
DC: At least two users; both are ancient and evil entities. One is a survivor of the GodWorld; he sided with Darkseid during the “Genesis” event; he was last seen imprisoned in the Source Wall.
MARVEL: Four users; two were successively the leaders of the Undying Ones.

The Needle
DC: Golden Age villain who fought the original Seven Soldiers of Victory.
MARVEL: Two users; both villains; one male, one female.

Nemesis
DC: Several users.
MARVEL: Three users. The latest was Amelia Witherspoon, who served with Alpha Flight.

Nemo
DC: One of the heroes of Wonderworld; killed by Mageddon.
MARVEL: Leader of a motorcycle gang called “The Blood Brothers” in the “X-51″ series.

Neon
DC: Temporary “Dial H for Hero” identity of Chris King. Also: Celeste McCauley (aka Celeste Rockfish), who served with the Legion of Super-Heroes before the Post-Zero Hour Reboot. Also, one of Mr. Element’s henchmen in a single Silver Age story must have been using this alias (since Mr. Element claimed all six noble gasses were represented on his payroll, although “Neon” was not mentioned by name). Another villain of this name has fought the modern Superboy (Kon-El). And most recently, Happy Terrill (the original “The Ray” of the Golden Age) gained some new powers and started calling himself “Neon.”
MARVEL: One of the Elements of Doom.

Network
DC: Several users; one was Taryn Haldane, heroine; member of Sovereign Seven.
MARVEL: Several users.

Neutron
DC: Nat Tryon, villain.
MARVEL: Apparently the alias which is preferred by the character who is usually called “Munchkin” by his teammates in “New Genix.”

The Night Man/Nightman/Knight-Man
DC: “Nightman” appeared as a mysterious new costumed crimefighter in a single Silver Age story. Batman investigated, and finally discovered that he himself was Nightman — thanks to his buddy Superman having hypnotized him into being a new hero part of the time, and not remembering it the rest of the time. The purpose of the exercise was to create a true challenge for Batman’s detective skills.
MARVEL: Johnny Domino is “The Night Man,” an Ultraverse hero. (Incidentally, his costume bore a strong resemblance to the traditional Batman look — but I don’t know if the creative team also deliberately adapted a name which had previously been a Batman alias in one obscure old story; that part could have been an in-joke or it could have been sheer coincidence!) “Knight-Man” was an employee of the Time Variance Authority until he was erased from history by the villain Clockwise.

Nightfire
DC: Name used by a character in the old series “Arion, Lord of Atlantis.”
MARVEL: Two users.

Nighthawk
DC: A 19th Century Old West hero.
MARVEL: Kyle Richmond; at least two analogs of him have played significant roles in Marvel continuity. One joined the Squadron Supreme in their timeline (he was basically their Batman-analog); one was a longtime member of the old Defenders in the main 616 timeline, after briefly serving with the Squadron Sinister and then reforming.

Nightingale
DC: Seiki Kato, villainess of the Pre-COIE Earth-Two; she fought that world’s Huntress (Helena Wayne). Later: A heroine in the world of “Kurt Busiek’s Astro City” who usually works with a partner called Sunbird.
MARVEL: Heroine, member of the First Line; presumably died in the explosion of a Skrull warship in the “Marvel: The Lost Generation” mini, along with several teammates.

Nightmare
DC: One of the heroes of Wonderworld; killed by Mageddon.
MARVEL: Two users; the more famous is a demon lord who has fought Dr. Strange and other heroes on many occasions.

Nightrider/Night Rider
DC: “Nightrider” was named David, also known as Dagon, a vampiric member of “Team Titans” (apparently erased from history during Zero Hour).
MARVEL: “Night Rider” was one of the aliases used by the 19th Century Old West vigilante also known as “Ghost Rider” and “Phantom Rider.” Several other characters in the Old West may have also used this alias, as well as “Phantom Rider,” at one time or another; the online resources I consulted aren’t entirely clear.

Nightshade
DC: First: A Golden Age villain who was later (according to a retcon in the 1980s) known as “Ramulus.” Second: Eve Eden, a superheroine they acquired from Charlton. Third: Sturges Hellstrom, a short-lived villain in the Batman continuity of the mid-1980s; he was killed by Anton Knight (previously known as “Night-Thief” and “The Thief of Night,” but after committing this murder, Anton became known as “Night-Slayer” and “The Slayer of Night”).
MARVEL: Tilda Johnson, villain.

Nightwind
DC: Berta Skye Haris was a student at the Legion Academy, and later a member of the Legion, in the Pre-Zero Hour version of “Legion of Super-Heroes” continuity
MARVEL: Female ninja villain, member of “Rising Sons” — lost her powers on M-Day.

Nimrod
DC: Villain who fought Batman.
MARVEL: Several users.

Nocturn/Nocturne
DC: “Nocturn” was an alien hero who fought alongside Guy Gardner. Now dead.
MARVEL: Several users of the name “Nocturne.” Best-known is probably T.J. Wagner, one of the six original members of the Exiles team which was organized by the Timebroker; T.J. is the daughter of an alternate timeline’s versions of Nightcrawler and The Scarlet Witch.

Noose
DC: Criminal who has served as an agent of Intergang in the Post-Crisis continuity.
MARVEL: Villain in the timeline known as “Earth-Nocturne.”

North Wind/Northwind
DC: “Northwind” is Norda Cantrell, hero; a founding member of “Infinity Inc.”
MARVEL: Two villains have successively served as “North Wind” of the group “the Four Winds”; the first user was killed by Elektra, thus creating a vacancy for the next guy to fill.

Nova
DC: An alias used by a depowered version of Clark Kent when he set up a new costumed identity in an Imaginary Story (or “alternate timeline”) of the Silver Age. (Note: The character got a cameo in the “Infinite Crisis” miniseries.)
MARVEL: Richard Rider, off and on, and the name may also have been used by an unknown number of other members of the Nova Corps at one time or another. Also: Frankie Raye, a Herald of Galactus.

Nuclear Man/The Nuclear Man
DC: In the movie “Superman IV: The Quest for Peace,” Lex Luthor created an evil clone of Superman called “Nuclear Man.” Lonewolf36 pointed out to me that since the movie received a comic book adaptation (which I’ve never read and didn’t remember existed), this movie villain can claim a place on my list, squeaking through on a technicality. In fact, although the version of the movie that was released in the 1980s only had one “Nuclear Man,” the comic book adaptation had two — due to DC’s adapting some scenes which were filmed, but subsequently deleted before the movie was released. (Those scenes are now included in the 2006 DVD box set, “Superman Ultimate Collector’s Edition.”)
MARVEL: Two users of “The Nuclear Man.” One was Thurgood Vance, a scientist who appeared in a single issue of “Ghost Rider.” After his daughter was kidnapped, he put on an armored, nuclear-powered suit of his own design and used it to rob a bank at the kidnappers’ insistence, but he also did some villainous things on his own, and was finally killed by Ghost Rider (Johnny Blaze at the time). Also, the character “Mahkizmo” (the epitome of a male chauvinist pig) is sometimes called “The Nuclear Man.”

Null
DC: Thief; partner of Void; fought Batman and Superman in the Pre-COIE continuity.
MARVEL: Giant android designed to oppose Galactus.

Note: I am about to list several cases where characters have called themselves “Number (Whatever)” as a working alias. To keep my life simple, at the start of each listing I type “Number” plus the appropriate numeral, and organize this set of aliases in ascending numerical order, although many of these characters usually had their aliases spelled out in the word balloons as “Number One” or “Number Six” or whatever. Of course the pronunciation is the same either way. I only include characters whose number-based codenames were established within a published comic book; I avoid filling in the gaps with sweeping assumptions. For instance, the highest-numbered codename I could find mentioned in dialogue for any member of the Wildebeest Society, as depicted in issues of “The New Titans” in the early 1990s, was “Number 91.” I don’t assume that this proves there were at least 90 other Wildebeest Society members who were using the codenames of “Number 1″ to “Number 90″ inclusive. Likewise, I only count characters from Marvel’s Secret Empire whose codenames have been mentioned in dialogue.

Number 1
DC: Villain who debuted in “Sandman #2″ in the 1970s. Also the name used by a leader of the Wildebeest Society which fought the Titans in the late 80s/early 90s; it eventually turned out that the mysterious “Number One” was actually Jericho (Joseph Wilson), a Titan turned evil. (Note: It was eventually revealed that before we ever knew what was happening, Jericho had staged a coup behind the scenes and replaced the founder of the Wildebeest Society in the role of leader, but as near as I can tell after rereading the relevant stories, we were never explicitly told that the first Wildebeest had previously used “Number One” as his own alias within the society he founded — although I consider it probable.)
MARVEL: Many users, including various leaders of the Secret Empire.

Number 2
DC: Villain who debuted in “Sandman #2″ in the 1970s.
MARVEL: At least four users, including at least two members of the Secret Empire.

Number 3
DC: Villain who debuted in “Sandman #2″ in the 1970s.
MARVEL: Several users; at least three people have held this position in the Secret Empire and then got themselves killed.

Number 4
DC: Villain who debuted in “Sandman #2″ in the 1970s.
MARVEL: At least three members of the Secret Empire have used this; two of them were killed.

Number 5
DC: Villain who debuted in “Sandman #2″ in the 1970s.
MARVEL: At least three users, two of them were in the Secret Empire; the earlier of those two was killed by a fellow member.)

Number 6
DC: Villain who debuted in “Sandman #2″ in the 1970s.
MARVEL: At least four users; three of them were Secret Empire; two of the three got themselves killed.

Number 7
DC: Villain who debuted in “Sandman #2″ in the 1970s.
MARVEL: At least two users; they were both Secret Empire; they both got killed.

Number 8
DC: Villain who debuted in “Sandman #2″ in the 1970s. Also a number used by a Wildebeest in the early 90s; he was killed by Number 1 (Jericho).
MARVEL: At least four members of the Secret Empire; two of whom were killed.

Number 9
DC: A Wildebeest in the early 90s; he was killed by Number 8, who briefly impersonated Number 9 afterward.
MARVEL: At least two members of the Secret Empire have used this, but neither of them qualify as the user who appeared in the most comic books. The one I’m thinking of was a beautiful, amnesiac, genetically-modified young woman with an unbelievable healing factor (it seemed to me that it worked much faster than Wolverine’s). She debuted in the “Daredevil” title during Ann Nocenti’s run, and was a regular for about a year, but I don’t think she’s been heard from again since that run ended.

Number 13
DC: A Wildebeest in the early 90s.
MARVEL: At least one member of the Secret Empire.

Number 14
DC: A Wildebeest in the early 90s; this one was sent to attack Dick Grayson (Nightwing), but accidentally got himself electrocuted in the fracas. Grayson seized the opportunity to infiltrate the Wildebeest organization by wearing the dead villain’s costume and answering to the same alias of “Number 14.”
MARVEL: An agent of the Rat Pack has used this.

Oblivion
DC: At least two; one was the dark side of Kyle Rayner, more or less.
MARVEL: Cosmic entity.

Obsidian/Obsydian
DC: “Obsidian” is the son of Alan Scott, the Golden Age Green Lantern.
MARVEL: “Obsidian” is the second-in-command of the terrorist outfit known as the Undertow. “Obsydian” is a character native to the timeline sometimes called “Earth-Cable.”

Ogre/The Ogre
DC: “The Ogre” fought Batman in the mid-90s and then vanished into comic book limbo after his buddy “The Ape” was shot dead.
MARVEL: At least three users (one was Techno impersonating the original user of the alias).

Omega
DC: A villain (the universal embodiment of hate) created by the thoughts of Brainiac 5 when he was a) insane, thanks to the influence of Pulsar Stargrave, and b) had access to the Miracle Machine (that’s a very bad combination). Omega fought the Legion of Super-Heroes (in their original continuity) and was destroyed (or at least dissipated so that all the hate in the universe was no longer in the same place) after Matter-Eater Lad gobbled up the aforementioned Miracle Machine.
MARVEL: Several users.

Omen
DC: Two users. This alias was eventually adopted by the heroine who occasionally worked with the Titans and had previously just called herself “Lilith.” Long after Lilith debuted, but long before she became “Omen,” there was another “Omen” who appeared as a villain in a Legion of Super-Heroes arc in the mid-1980s.
MARVEL: Supernatural entity who organized the Legion of Night after possessing and resurrecting the body of Charles Blackwater, a deceased lawyer.

Onyx/Onyxx
DC: “Onyx” is a female ex-member of the League of Assassins; now reformed to be a non-murderous vigilante crimefighter who has gained Batman’s approval.
MARVEL: One user of each spelling.

Oracle
DC: At least two. The first was a cosmic entity who gave the JLA and JSA some guidance in rescuing the original Seven Soldiers of Victory in a 1972 story. The second is Barbara Gordon, formerly the first Batgirl.
MARVEL: Several users; I think the best-known is a female member of the Shi’ar Imperial Guard.

Orca/Orka
DC: “Orca” was Grace Balin, a Batman villain; now dead.
MARVEL: “Orka” is a villain; a mutated renegade Atlantean.

Osmium
DC: Robot member of the third “Metal Men” team; eventually went rogue and was destroyed. Also a villain who fought Metamorpho and was destroyed.
MARVEL: Presumably one of the Elements of Doom.

Osprey/The Osprey
DC: On one page of one issue of “Justice League Task Force” in the 90s, we caught a glimpse of a mysterious new villain plotting something for the future. He called himself “The Osprey” and seemed to have a grudge against The Martian Manhunter in particular. That was his entire published career; he never reappeared to actually do anything about the aforementioned grudge!
MARVEL: Two users. One was an ordinary guy in a costume who applied for membership in the Frightful Four and was rejected. The other was apparently created by Marvel to appear in a “Conan the Barbarian” story.

Outlaw
DC: A Golden Age Fawcett villain called “The Outlaw” fought Captain Marvel Jr. According to dc.wikia.com, two different criminals called “Outlaw” appeared in two consecutive issues of Mark Shaw’s “Manhunter” series, but I plan to double-check that in the future. There was also an “Outlaw” in the 19th century wild west who was finally revealed to have been working deep undercover for his father (a captain in the Texas Rangers) by pretending to be a desperado; he was Rick Wilson, the star of a 1970s feature in “All-Star Western.”
MARVEL: At least three; one was a British vigilante who deliberately mimicked the Punisher.

Overlord/The Overlord
DC: Two villains in the old “Super Friends” title successively used “The Overlord.”
MARVEL: Several users.

Overman
DC: The Superman-analog of Earth-10 in the New Multiverse. On that Earth, the Nazis won WWII; Baby Kal-El landed in their territory and grew up speaking German.
MARVEL: Alternate future version of Simon Williams.

Overmaster
DC: Villain who fought the Justice League in the mid-90s; his plan was to exterminate all but one member of the human race.
MARVEL: Another name used by the demon Thog.

Overmind
DC: An alias once used by Professor Emil Hamilton.
MARVEL: Grom, last survivor of the planet Eyung.

Override
DC: Villain; leader of a group called the Mainframe.
MARVEL: Greg Herd, villain.

The Owl/O.W.L.
DC: “O.W.L.” was a talking owl-shaped robot which served as a sidekick to a mysterious character who (in Steven Seagle’s brief Superman run) claimed to be the second heroic user of the name “Viceroy.” All other characters in this listing used “The Owl.” They include: Two Golden Age Quality villains; one fought The Clock; the other fought Plastic Man. Also a Golden Age MLJ villain who fought The Shield. Later, a Silver Age villain who fought the Blackhawks. This is also the alias used by the analog of the Golden Age Doctor Mid-Nite who lives in the timeline where the Elseworlds stories “JSA: The Liberty Files” and “JSA: The Unholy Three” are set.
MARVEL: At least three users. One is Leland Owlsey, one of the earliest foes of Daredevil.

Ox
DC: A trained assassin who was eager to follow Cassandra Cain’s lead in the final issues of Cass’s regular “Batgirl” series — until he died.
MARVEL: Several users; two of them (twin brothers) have served at different times with the group of Spider-Man foes known as “the Enforcers.”

Oxygen
DC: Villain; one of the Gas Gang.
MARVEL: Presumably one of the Elements of Doom.

Ozone
DC: Villain who fought Green Arrow in the 1980s.
MARVEL: Character who wanted to be a hero, but was rejected for membership by a group called O-Force in the “X-Statix” title; hasn’t been heard from since?

Ozymandias
DC: Adrian Veidt, mass-murderer; a former superhero in the “Watchmen” graphic novel (he’d retired from that about a decade before the main action of the story).
MARVEL: A servant of Apocalypse.

Pagan
DC: Marian Mercer, killer vigilante who’s clashed with Batman. There was also a Wildstorm hero called “Pagan” (and sometimes “Fiend”) who served with Stormwatch; I am told that just recently he died (apparently). Also, I am told that the modern “Thorn” (Rhosyn Forrest in her nastier personality) once used the alias “Pagan” when posing as a supervillainess in a Harley Quinn story; I’m not clear on whether Thorn was pretending to be Marian Mercer or had simply created a new role out of thin air.
MARVEL: Villain who has fought the Avengers; his brothers are called “Lord Templar” and “Jonathon Tremont.”

Paladin
DC: An alternate-timeline analog of Batman; this version of Bruce Wayne ended up dressing like a character out of a Western and using guns to shoot his enemies dead. The alternate timeline in question was apparently created from scratch by Anansi, and this “Paladin” recently fought alongside the JLA of the main continuity in a battle with the Starbreaker.
MARVEL: A mercenary who has worked with Heroes for Hire and as part of a Thunderbolts team; decades after he debuted, we still don’t know his real name.

Paragon
DC: Villain who once fought the JLA.
MARVEL: At least four users; one was the character later known as “Her” and then “Kismet.”

Parasite
DC: Maxwell Jensen was the Pre-COIE Parasite; Rudy Jenkins became the Post-COIE Parasite; both of them habitually fight Superman. Alex and Alexandra Allston later became “Parasites” simultaneously; Alex is now dead.
MARVEL: One of the Lilin; infected Martine Bancroft; now dead.

Pariah
DC: Scientist who spent a long time doomed to watch either worlds or entire universes get destroyed, one after another. He couldn’t prevent it; he just got to watch. (Details of his backstory have fluctuated over the years; he debuted in COIE, but afterwards, the Post-COIE version of Pariah couldn’t even remember that there used to be a great big multiverse and that he had witnessed the destruction of many of its component universes; he apparently “remembered” just seeing one planet at a time get wiped out.)
MARVEL: On those occasions when a group of evil spirits called “the Spirits in the Stone” were able to seize control of a human host, “Pariah” was the name they caused the host to use.

Patch
DC: At least three users; all pretty obscure. Two were villains who each had one appearance; another was a female pirate who had a temporary alliance with Travis Morgan, The Warlord — at least in the continuity of his old series; I don’t know if she’s still around in Skartaris in the latest version of Warlord continuity.
MARVEL: Several users; the most notable is probably Wolverine in a bunch of stories set in Madripoor, in which he habitually wore an eyepatch as a disguise.

Patriot/The Patriot
DC: Member of the Freedom Brigade, now retired from superheroing; father of Myron Victor. (Myron grew up to be “Merryman,” the leader of the Inferior Five.)
MARVEL: At least two heroes have used the name “Patriot.” First: Jeff Mace, Golden Age hero who (according to retcons in the 1970s) also filled in as Captain America for awhile, around the late 1940s. Second: Elijah Bradley, member of the Young Avengers. (Note: I get the impression that Jeff Mace called himself “The Patriot” but Elijah just goes with “Patriot.”)

Payback
DC: A Milestone character. Also the name used by one of the greatest heroes of the planet Thordia. Also used by a villain who appeared in the “Darkstars” title in the 1990s.
MARVEL: A Punisher imitator in the 1990s.

Pepper
DC: An alien from the planet Salata; his people are plant-derived; he once met Captain Marvel in the 1970s “Shazam!” series.
MARVEL: Two users; one is a villain whose partner is “Salt.”

Peregrine
DC: Villain who fought the second Black Condor in the 1990s.
MARVEL: Alain Racine, a French hero.

Perfection
DC: A villainess who fought the original Wonder Girl (Donna Troy) in one story.
MARVEL: Name used by an aspect of Emma Frost when she was under the influence of Cassandra Nova.

Persuader
DC: At least three; the most famous was a regular villain in at least two versions of “Legion of Super-Heroes” continuity; a member of the Fearsome Five.
MARVEL: A Spider-Man villain who died in his first appearance.

Phalanx
DC: An Italian villain who was part of the Cadre of the Immortal and then the Overmaster’s Cadre.
MARVEL: Cord Mather, a vigilante who appeared in a few Punisher comics before being killed by Bullseye.

Phantasm
DC: Several, including Danny Chase (a deceased Titan), and later Andrea Beaumont of the DCAU; Andrea was the villain mentioned in the title of the comic book adaptation of the animated film “Batman: Mask of the Phantasm.”
MARVEL: Villain who once fought Paladin; apparently hasn’t been heard from since?

The Phantom
DC: Two Golden Age Fawcett villains. One fought Captain Marvel; one fought Mr. Scarlet and Pinky. This alias was later used during a single robbery by one of the villains better known as “The Mad Maestro” (I’m told there have been at least two Mad Maestros). In a Silver Age story the Blackhawks met an invisible man whom they dubbed “The Phantom,” but I’m not clear on whether or not he ever embraced that alias himself.
MARVEL: At least two users of “Phantom” or “The Phantom.”

Note: Both companies have also had various characters who called themselves “The Phantom of (Whatever)” or “The Phantom of the (Whatever),” but in each of those cases I feel the “full alias” was different from that of anybody at the other company.

The Phantom Raider
DC: Golden Age Quality villain who fought the Blackhawks.
MARVEL: Villain of the Old West; he fought Kid Colt and died.

Phase/Faze
DC: What with time travel and retcons and reboots, the name “Phase” has been used both by Tinya Wazzo (originally known as “Phantom Girl” of the Legion of Super-Heroes) and by Enya Wazzo (Tinya’s long-lost cousin), but I think all of that has been erased from mainstream DCU history in the latest version of Legion continuity. A “Phase” was also part of Wildfire’s Legion in the 75th Century; I think that was a whole different character.
MARVEL: Two users of “Faze.”

Phobia
DC: Angela Hawkins III, villainess; has served with the Brotherhood of Evil.
MARVEL: Two. One is a demoness; one is an Inhuman in the era of the Guardians of the Galaxy.

Phoenix
DC: Codename of an agent of the OSS in WWII, as established in “G.I. Combat” in the 1980s.
MARVEL: Several; the most famous ones are Jean Grey and/or the Phoenix Force that sometimes impersonates her and sometimes merges with her.

Photon
DC: Temporary “Dial H for Hero” identity of Galen.
MARVEL: Jason Dean, villain. Later: one of the previous heroic aliases of Monica Rambeau, who is now “Pulsar.” Also: Genis-Vell, now dead (I think).

The Pied Piper
DC: At least three villains have used this alias. Two were Golden Age characters; one fought the Batman of that era and the other fought Hawkman. The Silver Age user, Hartley Rathaway, eventually reformed; he subsequently preferred “Piper.”
MARVEL: Seems to have been an alternate alias for a character also known as “Mister P,” according to marvunapp.com.

Pile-Driver/Piledriver
DC: “Piledriver” was a villain; part of the Evil Eight who fought Chris King and Vicki Grant in their “Dial H for Hero” days.
MARVEL: “Piledriver” is Brian Philip Calusky; a longtime member of the villainous Wrecking Crew. “Pile-Driver” is Jerome Whale, a member of the villainous Triumvirate of Terror that once fought the Silver Age Avengers. (It appears that Jerome has never reappeared since that time.)

Pilgrim/The Pilgrim
DC: “Pilgrim” was Maritza Blackbird, member of Wildstorm’s Wetworks.
MARVEL: “The Pilgrim” was Bob Hardin, villain; he had also been the hero “Atom Bob,” a founding member of the Ultraverse team “the Strangers,” before he went bad.

Pinhead
DC: A former henchman of The Waxman; Pinhead ended up in Arkham Asylum and was killed by Killer Croc in a duel.
MARVEL: Two Golden Age criminals (apparently unrelated) each used this alias. One was a leader of a gang and died fighting the original Human Torch; the other worked for a villain called “Madame” when her gang also fought the original Human Torch. Decades later, a New Universe villain used this name.

Piper/The Piper
DC: At least two. One was a former villain who died as soon as he appeared, in “Aztek #1.” It also seems to be the alias now preferred by Hartley Rathaway, a reformed villain who used to fight Barry Allen as “the Pied Piper.”
MARVEL: At least two. One of the Morlocks (believed dead), and one of the Savage Land Mutates.

Piston
DC: A member of the Force Family; his body is either covered with metal or else is solid living metal all the way through; I’m not sure which.
MARVEL: Two users. One was Andrei Semyanovitch Rostov, a member of the Harriers (a group led by the mercenary known as “Hardcase”); it seems Andrei had a grand total of one appearance. The other is a woman who once met and fought alongside one of the Ghost Riders (and it appears that she, too, has never been heard from again?).

Pix/Pixx
DC: “Pix” is Ariadne Pixnit, a villainess who fought Batman.
MARVEL: “Pixx” was a teen heroine in the Ultraverse; a founding member of the Ultraforce, she died in the line of duty.

Pixie
DC: Temporary “Dial H for Hero” identity of Vicky Grant.
MARVEL: Several users.

Plasma
DC: A villain who has fought the modern Wonder Woman. Also a temporary “Dial H for Hero” identity of Lori Morning in post-Zero Hour “Legion of Super-Heroes” continuity.
MARVEL: Leila O’Toole, villain.

Platinum
DC: One of the original Metal Men; her friends frequently call her “Tina.”
MARVEL: One of the Elements of Doom.

Plutonium
DC: One of the second (and evil) team of Metal Men. Destroyed.
MARVEL: One of the Elements of Doom.

Poet
DC: Name used by a man who was a member of a group of homeless people who appeared in some Batman and Batgirl stories in the Pre-COIE days.
MARVEL: 2099 character who died.

Polestar
DC: Rokk Krinn (previously known as “Cosmic Boy,” a founder of the Legion of Super-Heroes) was using this alias just before the Post-Zero Hour Reboot of Legion continuity.
MARVEL: Three users; all seem pretty obscure; the second replaced the first after he died; I don’t think the third user has any clear connection to his predecessors.

Poltergeist
DC: Temporary “Dial H for Hero” identity of Oliver Queen. Also, a villain of this name fought the Legion of Super-Heroes in their Post-Zero Hour Reboot continuity.
MARVEL: Mickey Silk, mutant with unpredictable telekinetic powers.

The Porcupine
DC: Golden Age Quality villain who fought Captain Triumph.
MARVEL: Three users; most notable was Alexander Gentry, a villain who finally died in action.

Powderkeg
DC: Villain who fought the JLA at least once? I know very little about him.
MARVEL: Villain.

Power Broker
DC: A Pre-Crisis villain who supplied weapons to other villains.
MARVEL: A villain who used to make a living by selling other people super-strength.

Power Fist/Powerfist
DC: “Powerfist” is a Milestone character who fought Static.
MARVEL: “Power Fist” is the analog, in another timeline, of the character known as “Luke Cage” and “Power Man” in the main timeline of the regular continuity.

Power Man/Power-Man
DC: I’ve run across a reference to the idea that a “Power-Man” also known as “King of Outer Space” once proposed marriage to the Silver Age Lois Lane, but I’m not clear on the details. Silver Age Lois also had a dream sequence in which she was the super-powered “Power Girl” and Clark Kent was the equally super-powered, but wimpy and ineffectual, “Power-Man.” There was also a Silver Age story with a mysterious new hero named “Power Man” who turned out to be a Superman Robot in disguise. This was reflected in “Kingdom Come” with a “Power Man” character who was a Superman Robot with a new paint job; I’m not sure if the Silver Age story was still supposed to have “really happened” in the past of the “Kingdom Come” timeline or not, though; so that “Power Man” may or may not have been a different robotic character than the one from the Silver Age. There was an unrelated “Power Man” who fought the Challengers of the Unknown in one Silver Age story.
MARVEL: At least two users of “Power Man.” One was Erik Josten, using it as his original villainous alias, long before he became Atlas of the Thunderbolts. The second was Luke Cage, hero.

Powerhaus/Powerhouse
DC: At least four users of “Powerhouse.” One was a villain who only appeared in “Super Friends #3” and promptly got killed — along with 99 other supervillains — as part of another villain’s fiendish scheme. One was a temporary “Dial H for Hero” identity of Jerry Feldon. Another was a villain who fought the Inferior Five. A fourth “Powerhouse” fought the Darkstars in the 1990s. “Powerhaus” was a member of Wildstorm’s “DV8.”
MARVEL: At least three users of “Powerhouse.” One was Alex Power, one of the Power Pack; just one of several aliases he’s used over the years.

Primus
DC: Original leader of the Omega Men.
MARVEL: At least four users.

Prism/Prysm
DC: “Prism” was a temporary “Dial H for Hero” identity of Chris King. “Prysm” is Audrey Spears, heroine, one of a new group of “Teen Titans” introduced in the mid-90s.
MARVEL: “Prism” was one of the Marauders; died in the Mutant Massacre. However, clones of the original have appeared in later stories.

Professor X/Professor Echs
DC: “Professor X” was a mad scientist who fought Plastic Man in “Plastic Man #1″ (that’s the series that came out in the 1960s).
MARVEL: “Professor X” is Charles Xavier, founder of the X-Men. “Professor Echs” was the name used by a parody of Charles Xavier in at least one “What The–?” story. “Professor Echs” was also the alias used by Scott Lobdell in another issue of the same title (yes, in a parody story written by the real world’s Scott Lobdell), when he was pretending to be the legendary founder of the Echs-Men in order to aid his recruiting drive as he traveled around the world gathering together a bunch of low-profile heroes for a new team which they ended up calling “the Obscurity Legion.” (After that one parody story was published, the Obscurity Legion was never heard from again, thereby living up to its name!)

Proletariat
DC: According to a retcon when he was introduced in the early 1990s, Proletariat had been a superpowered operative of the Soviet Union since the WWII era, but went rogue after he became disgusted with Gorbachev’s ideas about glasnost.
MARVEL: Villain who fought Speedball.

Prometheus
DC: Apparently two or three; the latest one is a villain who gave the JLA some bad times, but was recently killed by Ollie Queen in the “Cry for Justice” mini.
MARVEL: Member of the Pantheon.

Prophet/The Prophet
DC: “The Prophet” was a villain who fought the Legion of Super-Heroes in a story in the 1980s.
MARVEL: Marvunapp.com lists three users; one is an alternate timeline’s analog of the character known on Earth-616 as The Aquarian.

Protector/The Protector
DC: At least two users of “The Protector.” One is a villain who fought Superman in a couple of issues in the 1970s and then seems to have been forgotten. The other is Jason Hart, who first appeared as a young hero in the 1983 comic book “New Teen Titans Drug Awareness Giveaway #1.”
MARVEL: At least four users.

Proteus
DC: At least two, both villains.
MARVEL: Kevin MacTaggart, villain, son of Moira MacTaggart. Reality-warping mutant; returned from the dead during “Necrosha” (although by the end of that event he had been scattered to the four winds, but is not expected to stay that way).

Psimon
DC: Villain who has often worked with the Fearsome Five.
MARVEL: Hero; worked with Warlock (the former New Mutant guy) in a “Warlock” series several years ago.

Psyche/Psi-Key
DC: “Psyche” is a heroine; member of the Wanderers, a team existing in the same era as the Legion of Super-Heroes. On the other hand, what is presumably a different “Psyche” is a vllain; part of a group called “the Knight Shift” which fought the Legion of Super-Heroes in the late 90s; i.e. in the timeline of Post-Zero Hour Rebooted Legion continuity.
MARVEL: Three users of “Psyche”; most notably, this was the first heroic alias used by Danielle Moonstar as a founding member of the New Mutants. “Psi-Key” is an artificial intelligence.

Pulsar
DC: The first user of this name was a villain in the “Karate Kid” series of the 1970s. (Remember, Val Armorr was dwelling in the 20th Century in that era of his continuity.) The second user received sonic powers from the Everyman Project during the one-year gap following Infinite Crisis, and served briefly with the Teen Titans, but was already gone from their ranks (don’t ask me why) before the One Year Later (OYL) stories got going.
Note: Neither of those “Pulsars” should be confused with the Legion of Super-Heroes villain known as “Pulsar Stargrave.”
MARVEL: Five users. Three Spaceknights and a former leader of the Fanatix (a criminal group in Bishop’s native timeline) are on the list, but the best-known is probably the heroine Monica Rambeau; it was her third costumed alias (I hear she no longer uses any alias, though).

Pulse
DC: Ayla Ranzz of the Legion of Super-Heroes, previously known as “Lightning Lass” and “Light Lass,” also used “Pulse” for awhile before the Post-Zero Hour Reboot kicked in.
MARVEL: At least three users; keeping a tally is complicated by the fact that one user is an assassin who has the ability to transfer his personality and abilities into another person’s body (a “host”) if the old body gets killed; he has inhabited at least four bodies that we know of.

Puma
DC: Jackson Jones, villain; dead.
MARVEL: Thomas Fireheart, sometimes portrayed as a villain.

The Puppet Master
DC: At least two. First, a Golden Age Batman villain. Second, Jordan Weir, who later became known as “the Puppeteer.”
MARVEL: Phillip Masters, villain; stepfather of Alicia Masters.

Puppeteer/The Puppeteer
DC: Two users. One fought the Blackhawks in a Silver Age story. The other, probably better known, is Jordan Weir, villain; previously known as “Puppet Master.”
MARVEL: At least two users; one was the entity which became better known as “Necromantra” in the Ultraverse.

Pyra
DC: Three users. One was a character in the old “Kamandi” stories. One was a female arsonist who fought the original Black Canary — according to a retcon in the 1980s. One was a female vampire who hung out at the big ongoing interstellar party called “The Rave” and was apparently the leader of a group called “the Corpse Corps” during her appearances in the series “Superboy and the Ravers.”
MARVEL: Sorceress who has appeared in some “Death’s Head” stories.

Pyre/The Pyre
DC: “The Pyre” is apparently a character who appeared in “Martian Manhunter #1,000,000.” There is also a Milestone character who prefers the name “Holocaust,” but used “Pyre” for awhile.
MARVEL: Several users.

Quake
DC: Villain; member of a Black Ops team that used to fight Steel (John Henry Irons, that is).
MARVEL: Two users. One villainous; one heroic.

The Queen Bee
DC: Many villainesses have used this alias over the years. Tex Thompson, in his days as the original “Mister America,” fought a female crime boss who used this alias. The Blackhawks fought a Golden Age Quality villainess who used this alias. In a Silver Age story in the mid-60s, Batman fell in love with Marcia Monroe, who then turned out to be the villainess “The Queen Bee” who was apparently working with Eclipso — but her motives weren’t so bad (she was trying to save her father’s life, for one thing) and she helped Batman survive his encounter with Eclipso — and she has never been heard from again. None of the above users had anything to do with the alien conqueror Zazzala of Korll, who debuted in the Silver Age and has fought the Justice League on various occasions. Zazzala, in turn, had nothing to do with the evil Queen Bee who ruled Bialya for awhile and tangled with the JLI in the late 80s/early 90s before being assassinated. However, two other users qualify as “spinoffs” of the two Justice League foes I’ve just mentioned — in the alternate timeline of “Terra Arcana,” Zazzala has a sister called Tazzala who used the same role (and died in action), and a few stories showed us a woman named Beatriz (sister of the previous Queen Bee of Bialya) who herself seized power in Bialya for awhile, reviving her sister’s alias at the same time; but apparently it didn’t last, given that Beatriz hasn’t been heard from in years. Note: in their first team-up as a crimefighting duo, the Golden Age Sandman and his new sidekick Sandy the Golden Boy fought a bunch of mutated insects which were led by “the Queen Bee.” However, I am not clear on whether or not that character was a) capable of speaking intelligible English, and b) chose to call herself “The Queen Bee” as if it were her official name or alias.
MARVEL: A villainess who appeared in an old “Electric Company” Spider-Man skit, which was then adapted as a short story in “Spidey Super Stories #15.” (Marvunapp.com asserts that any material published in that title happened on Earth-57780 in the Marvel multiverse.)

The Queen of Hearts
DC: Several users; all but one were villainesses. The first was a Golden Age Fawcett villainess who fought Captain Marvel Jr. Another fought Batman in the early 90s. At least three other women have each used this alias while working for the Royal Flush Gang within the past decade; each clashed with a different superhero. Furthermore, in a comic book set in the DCAU timeline, another Queen of Hearts (Una Hitchens) made an appearance as part of a Royal Flush Gang. xxx was Una surely a diff. character? The only DC character who used this alias while doing good was Vicki Grant; it was one of her many “Dial H for Hero” aliases.
MARVEL: An alternate alias for the member of the Crazy Gang who apparently is more frequently called “The Red Queen.”

Quicksand
DC: Anjelica Dugensa, villainess who fought the Legion of Super-Heroes in their Pre-Zero Hour continuity. There was also a “Quicksand” who appeared in the Post-Zero Hour Legion continuity; I don’t know if she had the same real name, but it seems likely.
MARVEL: “Quicksand” is a villainess with powers similar to those of Flint Marko (Sandman); she has been affiliated with several groups over the years; most recently serving with “the Women Warriors” (the Initiative team based in Delaware) after she was mentally conditioned to behave in a more law-abiding fashion.

Quicksilver
DC: A Golden Age hero, originally belonging to Quality Comics, and now better known as “Max Mercury.”
MARVEL: Pietro Maximoff, hero.

Quill
DC: Villain who fought the Titans in the mid-90s as part of an ad hoc team under the leadership of Trigon’s daughter Raven, who was going through one of her “look at me, I’m such a bad girl” phases.
MARVEL: Four users; one is an assassin in the New Universe.

Rabbit
DC: Villain; leader of the Twelve Brothers in Silk; recently got himself killed by his sister, who is now known as “White Canary.” (In fact, she killed all twelve of her brothers.)
MARVEL: Leader of China Force; killed by Reignfire.

The Radioactive Man
DC: Golden Age Quality villain who fought Doll Man. Also a Golden Age Fawcett villain who fought Captain Marvel.
MARVEL: Two users; the more famous is Dr. Chen Lu, who’s been around since the Silver Age.

Radion
DC: First user: A villain who fought the Earth-One Superman once in the 1970s. Second: A would-be hero who was rejected by the Legion of Super-Heroes during the Post-Zero Hour Reboot era of their continuity; but this “Radion” apparently ended up with a different heroic group of that era called “the Workforce.” Third: A villain who appeared in two issues of Steven Seagle’s run on a “Superman” title; that guy may have been meant as a Post-COIE Reboot of the Earth-One villain, but I’m not sure of that.
MARVEL: Henri Sorel, villain; later known as “Ravager.”

Radium
DC: A Golden Age villain who once fought Hawkman.
MARVEL: One of the Elements of Doom.

Radon
DC: One of Mr. Element’s henchmen used this alias in a single story.
MARVEL: Presumably one of the Elements of Doom.

Rainmaker
DC: Two users. First: A villain who once fought the Golden Age Superman. Second: Sarah Rainmaker, hero; founding member of Wildstorm’s first Gen13 team.
MARVEL: Villain in the 2099 timeline; member of a group called the Free Radicals.

Rampage
DC: Kitty Faulkner, sometimes a hero, depending upon her ability to control her temper when in her super-strong form.
MARVEL: Stuart Clarke, villain.

Rancor
DC: Todd Francis Oszechorski, a neo-Nazi lunatic who was The Joker’s right-hand man during the “Last Laugh” event.
MARVEL: A villainess who is a fifth-generation descendant of Wolverine in the future timeline of the Guardians of the Galaxy.

Ranger/The Ranger
DC: “The Ranger” was an Australian hero who debuted in the 1950s. In modern times, he changed his alias to “Dark Ranger” and then got himself killed.
MARVEL: At least three users; one was an Ultraverse hero.

Rapier
DC: In the alternate reality of the Maximums (who are knockoffs of Marvel’s Avengers/Ultimates character concepts), “Rapier” was a villain; one of the “Axis of Evil” group. (Someone writing for Wikipedia claims that Rapier was a knockoff of The Swordsman and/or The Black Knight.)
MARVEL: Dominic Tyrone, a minor villain who worked for Silvermane; he was killed by one of the “Scourge of the Underworld” characters.

Raptor/Raptore
DC: “Raptor” was Jace Lorens, a guy in an armored suit who appeared in a couple of Nightwing issues and then got himself killed.
MARVEL: At least four users of “Raptor.” Two of them had just one appearance each; another debuted in 2009 as a Spider-Man foe; but the user who’s had far and away the most appearances is Brenda Drago in the MC2 timeline. Brenda became a regular in the Spider-Girl stories and eventually married Norm Osborn (the MC2 version of the grandson of the original Green Goblin). Marvel also has a villain called “Raptore” who was once captured by Omega Flight; I arbitrarily assume the name is pronounced the same as “Raptor.”

Rat
DC: Villain; one of the Twelve Brothers in Silk; recently got himself killed by his sister, who is now known as “White Canary.” (In fact, she killed all twelve of her brothers.)
MARVEL: Four users; one was part of China Force.

The Rat King
DC: Villain who fought the Young Heroes in their own series.
MARVEL: In a “What The–?” story, it was stated that this was the name of a villain who had fought Goofball (himself a parody of Speedball). If “The Rat King” was a parody of some other Marvel character, I don’t know whom.

Rattler/The Rattler
DC: Two Golden Age villains used “The Rattler.” One fought Quality’s Plastic Man; one fought the Seven Soldiers of Victory.
MARVEL: At least three users in the Marvel Universe (two were villains in the Old West); it may be four, if we want to count the one who lived and died within the Spider-Man newspaper strips. (I’m not sure how many of the four, if any, preferred “The Rattler” instead of just “Rattler.”)

Ravager
DC: Several users, including two of Deathstroke the Terminator’s kids at different times.
MARVEL: Henri Sorel, villain.

Raven/The Raven
DC: Many users of “Raven” or “The Raven”; often villains who have long since faded into obscurity. However, the best-known “Raven” of the past 30 years has definitely been the spooky girl who is Trigon’s daughter; she is sometimes known as “Rachel Roth” nowadays. She is usually a heroine; she brought together the other members of “The New Teen Titans when their title began in 1980.
MARVEL: Several users; all seem pretty obscure.

Reaper
DC: Three Batman villains, at least two of whom are no longer in continuity. There was also a “Reaper” who fought the Golden Age Quality hero “The Clock.”
MARVEL: A character who was a villain when he worked with the Mutant Liberation Front, but later became a hero in the Ultraverse.

Red Dragon/The Red Dragon
DC: At least four users.
MARVEL: At least three users.

Red Eye
DC: “Red Eye” was apparently a villain in “Blue Devil #19″ in the 1980s. May never have appeared again?
MARVEL: Alias of a Cyclops-analog in the mini “Avataars: Champions of the Realm.”

Red Fox
DC: Apparently “The Red Fox” was the English version of the original alias of the French superheroine (secretly two sisters taking turns in that role) who later preferred to use the alias “The Crimson Fox.” Both sisters are now dead.
MARVEL: A Chinese guerrilla fighter in the WWII era who worked with Captain Savage and his Leatherneck Raiders, and died in action.

The Red King
DC: Darren Proffit, villain who fought the Justice League.
MARVEL: Alan Wilson, member of the London branch of the Hellfire Club; only appeared in a few issues of “Excalibur” in the 1990s.

The Red Queen
DC: Villainess in the continuity of Kurt Busiek’s Astro City.
MARVEL: Several users; some of them live in alternate timelines. It is another alias for the member of the Crazy Gang also known as “The Queen of Hearts.” It has also been used as a position in the Hellfire Club — Margali Szardos was once the “Red Queen” of the London branch, and another “Red Queen” first appeared as the mysterious leader of a San Francisco splinter group called the Hellfire Cult.

Red Raven
DC: This alias was used by a criminal in a Silver Age story; he lived in a parallel world where Superman was secretly Bruce Wayne, and the boss at the Daily Planet was James Gordon. More recently, this became the current alias of the character formerly known as “Little Raven”; a sidekick to his occasionally-crimefighting father, the Native American known as Man-of-Bats; the two of them are (or were) part of “the Club of Heroes.”
MARVEL: At least three users. A Golden Age hero used this name, and his daughter has continued the family tradition of superheroing in modern continuity, complete with dusting off her daddy’s costumed alias. There have also been a few stories with a “Red Raven” who was a flying villain in the Old West.

Redeemer
DC: Wildstorm hero; longtime leader of the Paladins.
MARVEL: Two users; both fought The Hulk.

Redstone
DC: Villain who fought the Mighty Crusaders (a group of Archie heroes) in the 1980s.
MARVEL: Michael Redstone, hero; served with the Redeemers in their fight against the original Squadron Supreme; later died.

Redwing
DC: Carrie Levine, heroine; member of the “Team Titans” until she (and most of her team) got erased from history by Zero Hour.
MARVEL: Used by a couple of characters in alternate timelines.

Reflex
DC: Two users. Walter Thorsson, hero; member of Sovereign Seven. Devlin O’Ryan, hero; served with the Legion of Super-Heroes before the Post-Zero Hour Reboot.
MARVEL: Hero; member of the First Line in “Marvel: The Lost Generation.”

Regulator/The Regulator
DC: “The Regulator” was Barnabas Boulton, a villain who apparently died in a battle with Black Lightning.
MARVEL: “Regulator” is Harlan Hackbarth, chief of security at the Clinic for Paranormal Research in the New Universe continuity.

Remnant/The Remnant
DC: “The Remnant” was an angry character who was apparently the personification of many people who had died violently at the same time Superman did (due to Doomsday’s initial rampage on the surface of the Earth).
MARVEL: In the 12-part “Squadron Supreme” mini of the mid-80s, “Remnant” was an old enemy of Nighthawk’s who was persuaded to join the Redeemers and fight against the Squadron Supreme’s takeover of the USA.

Requiem
DC: A name sometimes used by Artemis of the Bana-Mighdall Amazons.
MARVEL: Villain; member of the Neo.

Revenant
DC: A member of the JSA of the alternate timeline depicted in “Elseworld’s Finest: Supergirl & Batgirl.” Also the name used by a member of the Shadowpact of the year 2108.
MARVEL: Villain who has worked as an agent of Ransome Sole (one of the Neo).

Reverb
DC: Armando Ramone, brother of Paco Ramone (the hero “Vibe” of the Detroit JLA). After Paco died, Armando became a hero and a member of the Conglomerate. He has also called himself “Hardline.”
MARVEL: Two users. One is a member of Gene Nation; one is a villain in the MC2 timeline.

Ricochet
DC: Speedster villain who fought the third Hawkman. Later used by a villain who fought Gunfire and quickly got himself killed.
MARVEL: At least three. Alias used by Spider-Man; this role (name and costume) was later revived by Johnny Gallo of the Slingers. There was also an agent of Mister Sinister who used the name; he’s dead now.

The Ringer/The Wringer
DC: “The Wringer” was a criminal who fought Batman in a single Bronze Age story.
MARVEL: “The Ringer” has been used three times; I gather all of them wore much the same costume.

Ringmaster
DC: Villain who once fought a Flash.
MARVEL: Villain with a hypnotic hat; used to lead the Circus of Crime.

Riot
DC: Two users.
MARVEL: Three users.

Riot Act
DC: Villain who may have only fought Robin (Tim Drake) once, after escaping from Arkham.
MARVEL: A woman who got a one-panel appearance; she was one of many costumed characters who apparently died when a Skrull ship exploded, as shown in the mini “Marvel: The Lost Generation.”

Risk/Risque
DC: “Risk” was one of the first members of the new “Teen Titans” team that debuted in the mid-90s.
MARVEL: “Risque” fought X-Force, but later became an ally; is now dead.

Rite/Right
DC: “Rite” was a woman who had joined a group called the Changers who were following The High in his attempt to reshape the world (Wildstorm’s Earth) in a Stormwatch story arc.
MARVEL: “Right” is one of the Soldiers of Misfortune.

Robotman
DC: Four users. First: Robert Crane, Golden Age hero. Second: Cliff Steele, founding member of the Doom Patrol. Both men were kept alive after terrible injuries by having their brains implanted in robot bodies. (In Crane’s case, his brain was eventually transferred back into another human body so he could retire from superheroing and marry his longtime sweetheart.) The third user was a robot body meant for Cliff which developed free will and turned nasty. The fourth user initially seemed to be Cliff (and believed himself to be), but had been subconsciously created out of thin air by Dorothy Spinner; after Robotman IV realized what he really was, he conveniently evaporated away.
MARVEL: A size-changing robot which appeared in “Fantastic Four/Iron Man: Big in Japan #2.”

Robot-Master/The Robotmaster
DC: “The Robotmaster” was another alias used by a Silver Age villain who was also known as “Professor Menace.”
MARVEL: “Robot-Master” is a robot built by Mendel Stromm.

Rock/Roc
DC: Two users of “Rock.” One was a temporary “Dial H for Hero” identity of Vicky Grant. One is Micah Flint, a Superman villain. “Roc” was a villain who once fought the Challengers of the Unknown in the late 50s.
MARVEL: At least two villains have used “Rock.” There was also an assassin called “Roc” who died fighting The Punisher.

Rocket
DC: Two female Milestone characters consecutively used this identity when functioning as Icon’s sidekicks.
MARVEL: Ultraverse character, partner of Blast.

Rockslide
DC: Villain; part of a group called “the Knight Shift” which fought the Legion of Super-Heroes in the late 90s; i.e. in the timeline of Post-Zero Hour Rebooted Legion continuity. Another “Rockslide” appears to be a regular customer at Bruiser’s Bar and Grill in the continuity of “Kurt Busiek’s Astro City.”
MARVEL: Two users; one is Santo Vaccaro, a student at the Xavier Institute; he was one of just 27 students who retained their powers after M-Day.

The Roman
DC: Nickname of Carmine Falcone, a mob boss in Gotham City; apparently dead (if we pretend “The Long Halloween” was meant to be firmly in continuity — rumors say it was never meant that way when first published).
MARVEL: A mob boss who gave Wolverine some trouble.

Rook/The Rook
DC: Several characters have used the codename/title of “Rook” throughout the history of the Checkmate organization. In addition, a villainess called “The Rook” fought some of the JLI in a single story in the early 1990s.
MARVEL: “Rook” was used by a villainess; one of the Chessmen who worked for Obadiah Stane while fighting Iron Man in the early 1980s. “Rook” was also a robot destroyed by Hulk. In Bishop’s native timeline, “The Rook” was a villain who could transfer his consciousness from one person’s body to another.

Roughhouse/Roughouse
DC: “Roughhouse” is a criminal; has served as an agent of Intergang in the Post-Crisis continuity.
MARVEL: “Roughouse” is a super-strong mercenary who used to work with a partner called Bloodscream.

Roulette
DC: Two villains. The first was a woman who fought the original Mister Terrific way back when (according to modern retcons). The second Roulette is the granddaughter of the first (and apparently believes the first Mister Terrific was her grandfather, but she may be wrong?).
MARVEL: Two of them. One was Jennifer Stavos, one of Emma Frost’s original Hellions; dead.

Saber/Sabre
DC: “Saber” was an assassin who fought Adrian Chase when he was the Vigilante. “Sabre” was John Zero, a villain who fought the Swamp Thing.
MARVEL: Several users of “Sabre.”

Sabre-Tooth/Sabretooth
DC: “Sabre-Tooth” was the alias used by two villains, one male and one female, who fought Barry Allen at different times and each died in action.
MARVEL: Sabretooth is Victor Creed, villain; currently dead.

Salt
DC: Agent of the International Peacemaker Project; worked with L.A.W.
MARVEL: Two users; one is a villain whose partner is “Pepper.”

Salvo
DC: Tony Salvotini was known as “Salvo,” the marksman member of the group called the Seven Seconds, in DC’s “Thriller” series in the mid-80s. Later, a second “Salvo” was a criminal who received superpowers from The White Magician so he could fight Wonder Woman.
MARVEL: Two users. One was a member of the Neo; got killed by Magneto.

Samson
DC: In the Silver Age, DC published several stories about a “Samson” who was not the Biblical figure of that name, but may have been a descendant or other relative continuing a family tradition. This Samson was incredibly strong, called himself “Mighty Youth” for awhile but later gave that up, and lived about 3,000 years ago, mostly operating in Ancient Greece.
MARVEL: At least three users, including The Forgotten One when he once posed as the Biblical Samson.

Samurai
DC: Two users. One is Toshio Eto, hero. The other is one of the Blood Soldiers; a group of Japanese villains whom the new Judomaster (Sonia Sato) was fighting when the JSA first encountered her.
MARVEL: Member of the Mutant Liberation Front

Sandman
DC: Several characters, beginning with Wesley Dodds in the Golden Age.
MARVEL: Flint Marko, one of the earliest Spider-Man villains.

Sandstorm
DC: Member of the Global Guardians; a Syrian hero who was recently killed by Prometheus.
MARVEL: Three users.

Sapphire
DC: Candace Jean Gennaro, heroine, an “associate” in the Power Company.
MARVEL: A Marvel UK character; one of the trio known as the Wyrd Sisters.

Satan
I’m going to make some general comments here. Going all the way back to the Golden Age, in comic books from DC, from Marvel, and from other publishers whose character stables are now under DC’s umbrella, many evil entities have been known to use this name at least part of the time, presumably hoping to be extra-terrifying to those with whom they are dealing. I gather that in many cases, such users have eventually been either stated or implied to be poseurs rather than “the real Satan”; thus, those users qualify as “original characters” in their respective universes, even if some of them were initially intended by the writers to really be the Biblical Satan, plain and simple, before that was retconned. (Any use of the Biblical Satan, of course, is not eligible for this list.)
DC: Several users — some of whom almost certainly did not expect to be taken at face value as the Biblical figure of that name. As examples of how obscure some of the users have become, I’ll mention a pointy-eared, red-bearded “Satan” who once fought a heroic group known as “the Radio Squad.” (Before researching this Draft, I’d never even heard of the Radio Squad!) On a similar note, in the WWII era there was a German spy called “Satan” who fought Fawcett’s Spy Smasher, and a Golden Age MLJ crime boss who fought The Comet repeatedly. I believe none of those three had any superpowers. There have been other users who may have had supernatural abilities, but were probably not who they claimed to be. On the other hand, dc.wikia.com states that “Satan” is considered a rightful title for anyone who becomes the ruler of Hell (although I suspect that point may only have become canonical within the last decade or so), with the result that DC’s demonic characters Neron, Lord Satanus, and Lady Blaze have each had occasion to claim to be the new “Satan” at some point.
MARVEL: Many users; some of the more prominent ones are better known as Mephisto, Satannish, and Chthon.

Satana
DC: “Satana” is Sara Descarl, a villainess who debuted in the Golden Age as a Hawkman foe. Another “Satana” was a Golden Age Quality villainess; a female spy who fought the Blackhawks.
MARVEL: “Satana” is Satana Hellstrom, sister of Daimon Hellstrom (both of them are half-demon, natch); she has sometimes been very nasty and sometimes not so bad. Note: In the Fourth Draft, I mistakenly listed her as “Satanna” — but it appears that she usually (if not always) has been depicted as using just one “N” in her name.

Savant
DC: Brian K. Durlin, villain who has sometimes worked for Oracle in “Birds of Prey” stories. Also the alias preferred by Zealot’s daughter Kenesha (who for much of her life believed she was simply Zealot’s kid sister) in the Wildstorm universe.
MARVEL: Two users; both obscure.

Savior/Saviour
DC: “Saviour” is Ramsey Murdoch, a Superman villain.
MARVEL: Several characters have used one spelling or the other.

Scalphunter
DC: Brian Savage, a 19th Century hero.
MARVEL: John Greycrow, villain, one of the Marauders who performed the Morlock Massacre. He has been killed and replaced by a clone (with the same memories, I suppose) at least once; he has recently appeared to be repenting of his criminally violent past.

Scanner
DC: Female alien hero in the Vanguard.
MARVEL: Several users.

Scar
DC: Several users, including a Milestone character and a female Guardian of the Universe (also known as “The Scarred Guardian,” I gather, before she died).
MARVEL: Ultraverse villain.

Scarecrow
DC: Jonathan Crane, a Batman villain.
MARVEL: Ebenezer Laughton, villain. Also: a mystical hero who later took the name of “The Straw Man” to avoid being confused with Ebenezer.

Scarface
DC: “Scarface” was the alias/nickname of a gang leader who fought the JSA in a single story in 1948. Now let’s talk about the wooden dummies which have confronted Batman in modern times. Depending on which suggestions in which stories you choose to believe, the first wooden Scarface was either an inanimate object used as a symbol of another personality within the mind of Arthur Wesker (The Ventriloquist), as manifested in Wesker’s habit of changing and throwing his voice to make it appear that the scar-faced dummy in a pinstripe suit was giving him orders — or else that Scarface was truly a separate entity — possibly the ghost of an old-time gangster called “Scarface” Scarelli — who had managed to possess a wooden dummy which a convict named Donnegan had amused himself by carving out of a piece of wood taken from Blackgate’s old gallows. Wesker is dead, and “Scarface” is now the name used by Peyton Riley for her similar-looking dummies. Since Peyton is far more willing to sacrifice and replace individual “Scarface” dummies than Wesker ever was, it seems likely that any given “Scarface” in her possession is not possessed by the ghost of Scarelli, regardless of whatever you believe about the true nature of Wesker’s “original” Scarface. (But I don’t believe any of Batman’s friends with mystical expertise have ever examined a “Scarface” up close and offered an opinion, so who knows?)
MARVEL: “Scarface” is the name used by a mercenary who worked for Abdul Alhazred in a few issues of “Marvel Comics Presents.”

Scatter
DC: One of the great heroes of the planet Thordia. Also used by a villain who appeared in the “Darkstars” title in the 1990s.
MARVEL: Villain; one of the Lilin.

Scavenger
DC: Two users. One fought Aquaman; one fought Superboy (Kon-El).
MARVEL: At least three users.

Scorch
DC: Aubrey Sparks was a villainess who debuted as part of the “Emperor Joker” storyline; she later seemed to reform and became romantically involved with The Martian Manhunter.
MARVEL: Four users.

Scorcher
DC: Three users; all villains.
MARVEL: Two users. One is a New Universe character; one was part of the Masters of Evil organized by the second Crimson Cowl.

Scorpio/Skorpio
DC: “Scorpio” is Ben Scarpis, who once fought the Golden Age Batman. “Skorpio” is Dennis Samuel Ellis, villain.
MARVEL: Numerous villains have used “Scorpio,” often as part of one Zodiac roster or another.

The Scorpion
DC: Several users; all villains, I gather. Three were active in the Golden Age: one fought the original Vigilante, one fought Little Boy Blue, and one fought the Blackhawks in their Quality days. During the Silver Age, one user fought the Blackhawks in a DC story (I gather he was not their old Quality foe of the same alias); another was a Charlton villain who fought Blue Beetle (Ted Kord). In the 1990s, a story arc in “Sandman Mystery Theatre” showed us the original Sandman (Wesley Dodds) fighting yet another “The Scorpion” (Terrance Pritchard) back in the 1940s, but since that was a Vertigo title, the whole thing may be noncanonical.
MARVEL: A few users, including two Old West villains, but the most famous is Mac Gargan, a longtime Spider-Man foe.

Scourge
DC: A villain who fought the Titans in the early 1990s; Starfire killed him.
MARVEL: Several users of Scourge, and I’m not even counting the ones who starting running around killing obscure supervillains in the 1980s because I believe each field agent of that organization was supposed to be using the full alias of “The Scourge of the Underworld.”

Scout/The Scout
DC: “The Scout” is the former sidekick of the Australian hero “Dark Ranger” (formerly “The Ranger”); after his mentor died, he took over the “Dark Ranger” role.
MARVEL: At least three users.

Scylla
DC: Temporary “Dial H for Hero” alias of Vicki Grant. Also the name of a villain who once fought The Fly (that’s the Archie hero) in a Silver Age comic. Also the name of a second-generation member of the Un-Men, according to the Vertigo miniseries “American Freak”; she died during that mini.
MARVEL: At least two users.

Seeker/The Seeker
DC” “The Seeker” was a sentient spacecraft with a nasty agenda which encountered Superboy (Kal-El) in the Pre-Crisis continuity; it was destroyed.
MARVEL: Several users.

Selenium
DC: Villain who fought Metamorpho and was destroyed.
MARVEL: One of the Elements of Doom.

Sentinel
DC: Alan Scott for awhile, when he was not using the name Green Lantern.
MARVEL: Any one of a zillion mutant-hunting robots that have been built over the years.

Seraph
DC: Chaim Lavon, Israeli hero; served with the Global Guardians.
MARVEL: New Universe character also known as “Guardian Angel.”

Serpentina
DC: Villainess who fought Chris King and Vicki Grant in their “Dial H for Hero” days.
MARVEL: Heroine in the 2099 timeline; she was a founding member of the X-Men 2099 group, and the first to die.

Shade/The Shade
DC: The best-known “The Shade” is a Golden Age villain who used to fight the original Flash (Jay Garrick), but was somewhat reformed, the last I heard; in the 1990s he frequently appeared in James Robinson’s “Starman” series. Also in the Golden Age, there was another “The Shade” who fought the original Vigilante, and yet another villain, apparently just called “Shade,” who tangled with the original Doctor Mid-Nite. (Note: I am assuming that the character created by Steve Ditko used the longer string “Shade the Changing Man” as his full working name, but I could be wrong; I’ve never read any of the guy’s original stories from the 70s, and precious little of what’s been done with him in more recent decades.)
MARVEL: Two users; both seem to be obscure villains.

Shadow Man/The Shadow Man/Shadowman
DC: “Shadow Man” was a superhero from another world who met the Earth-One Superboy in a single Silver Age story.
MARVEL: “The Shadow Man” was a villain from another reality who appeared and died in a single story in 1960. “Shadowman” is a New Universe character.

Shadow Thief/The Shadow-Thief
DC: “The Shadow-Thief” is Carl Sands, a villain who usually fights Hawkman.
MARVEL: “Shadow Thief” is a villain who fought Shang-Chi back in the 1970s.

Shadow Woman/Shadowoman
DC: Tasmia Mallor, better known as “Shadow Lass” of the Legion of Super-Heroes, briefly used makeup to look more Caucasian in her coloring and called herself “Shadow Woman” at the same time; this only lasted a couple of issues before she reverted to her normal look and alias. (Note: Many years previously, there had been a story which showed a future version of Legion continuity in which a martyred Legionnaire called “Shadow Woman,” with Caucasian coloring, had her own memorial statue. Until Paul Levitz had Tasmia toy with that look and alias and then quickly abandon it, the “dead Shadow Woman of the future” could have been an entirely different character.)
MARVEL: “Shadowoman” was the first costumed alias of Jillian Marie Woods, heroine; she later switched to “Sepulchre.”

Shaft/The Shaft
DC: “The Shaft” was an archer villain who fought the Blackhawks in a Silver Age DC story.
MARVEL: “Shaft” was one of the ninja clan known as the Chaste; died in the line of duty shortly after he debuted.

Shaman/The Shaman
DC: “The Shaman” was a Golden Age Quality villain who fought the Blackhawks.
MARVEL: “Shaman” is Michael Twoyoungmen, hero; founding member of Alpha Flight.

Shamrock
DC: Name, evidently an alias/nickname, used by a man who was a member of a group of homeless people who appeared in some Batman and Batgirl stories in the Pre-COIE days.
MARVEL: Three users; best-known is Molly Fitzgerald, Irish heroine.

Shape/The Shape
DC: “Shape” was a Durlan member of Wildfire’s Legion in the 75th Century (in the post-Zero Hour version of Legion continuity).
MARVEL: “The Shape” is Raleigh Lund, a former villain in the world of the original Squadron Supreme continuity; the character seemed mentally handicapped and thus probably not entirely responsible for his actions when following the instructions of other criminals.

Shard/The Shard
DC: “The Shard” was a superhero during part of WWII, according to a retcon in 2001. He was a member of the group known as the Seven Shadows — he and five of his friends all died in the same event in 1944. This character was also known as The Luminary, for some reason. There was also a “Shard” who appeared in two issues of the “Peter Cannon, Thunderbolt” series in the early 1990s, and apparently hasn’t been heard from since — his villainous alias came from the fact that his body looked as if it were made out of broken glass.
MARVEL: Three users of “Shard”; one of them is Bishop’s sister, a heroine.

Shark/The Shark
DC: Four of them; the one with the most staying power is a mutated tiger shark who’s fought Green Lantern and other heroes on various occasions.
MARVEL: Two of them; one was a Golden Age villain.

Shatterfist
DC: Two users, both villains; successively members of the Cadre; the first was killed by Ice of the Justice League.
MARVEL: One of the Crimson Cowl’s Masters of Evil.

She-Cat
DC: An alternate alias of Cassandra Cartwright, also known as “Alley Cat”; she debuted as a villain in a Catwoman story in 1997.
MARVEL: A member of the Strikeforce One group which served the villain known as The Master of the World; She-Cat was a clone of the female White Tiger who was working with the Heroes for Hire at that time (the late 1990s). She-Cat apparently died in action and hasn’t been heard from since.

Shellshock
DC: At least two users, both villains; there may be a third user, but if so, I can’t prove it. I find that dcuguide.com has listings for characters it calls “Shellshock II” and “Shellshock III,” but it completely fails to explain who it thinks “Shellshock I” was. Online research by yours truly has failed to turn up any other sign of a “Shellshock” depicted in any DC story prior to 1992 (when the woman whom dcuguide.com calls “Shellshock II” first fought Superman).
MARVEL: An obscure villain who used to work for Psycho-Man; he later was killed by one of the “Scourge of the Underworld” characters.

Shift
DC: Hero, one of the Outsiders; initially he was thought to be the veteran hero Metamorpho; actually began as just a piece of Metamorpho which developed independent sentience and all that jazz, with altered powers. I am told that Post-OYL, Shift finally asked to be merged back into Metamorpho, and was. (Long before he came along, in the Post-Zero Hour version of Legion of Super-Heroes continuity, there was also a “Shift” who was a hero in Wildfire’s Legion in the 75th Century.)
MARVEL: Clifton Joseph, hero; member of “Genetix.”

Shifter
DC: Temporary “Dial H for Hero” identity of Nick Stevens.
MARVEL: One of the aliases used by the member of the Shi’ar Imperial Guard also known as “Shapeshifter” and “Hobgoblin.”

Shiv
DC: Three users. Most noteworthy is probably Cindy Burman, a villainess who joined Johnny Sorrow’s Injustice Society.
MARVEL: Five users; according to marvunapp.com, each of the five has had just one or two appearances apiece.

Shockwave
DC: Arnold Pruett, mercenary villain.
MARVEL: Two users. Lancaster Sneed, villain. Kathy Ling, member of Psi-Force in the New Universe.

Shrapnel
DC: Mark Scheffer, a Doom Patrol villain who may have died recently in an attempt to activate Doomsday.
MARVEL: Three users.

Shriek
DC: Augusto Gutierrez, a former Chilean soldier who became a member of the Phantom Limbs.
MARVEL: Frances Louise Barrison, villainess.

Shrike
DC: At least four users.
MARVEL: At least three users.

Sickle
DC: There have been two duos called “Hammer and Sickle.” The first was a pair of Russian agents who fought the Blackhawks in a story published in the 1950s, when they were still Quality characters. The second such duo (apparently no relation to the first) were husband and wife; co-leaders of the People’s Heroes, a team of superheroes working for the USSR in the Cold War days. I’m told that recently that second Sickle has turned up again as a member of Circe’s army of supervillains.
MARVEL: Three users; one is a partner of “Hammer.” (No relation to the Quality/DC duos of the same names.)

Sidewinder
DC: A member of “Task Force X II”; now dead.
MARVEL: Three users. The first and best-known is Seth Voelker, a villain with teleport capability built into his costume; he was the first leader of the Serpent Society. Two other people have, at different times, each “leased” the costume from Voelker and tried to be Sidewinder themselves. (One of those guys promptly got himself killed.)

Sigma
DC: Member of the Pantheon; a group which fought Superman and Batman in the Earth-One continuity of the early 1980s.
MARVEL: One user in the Ultraverse; her only distinction was that she debuted just in time to be the first “Ultra” murdered by the villain Rafferty when he launched a killing spree.

Silencer/The Silencer
DC: “The Silencer” was a freelance assassin who fought Batman and Robin in a single Silver Age story. “Silencer” fought Captain Marvel in a story set on Earth-S in the early 1980s; that character may have been erased from history by COIE.
MARVEL: At least five users, including one who was a female member of Strikeforce: Morituri and died.

Silhouette/The Silhouette
DC: Two obscure villains; one fought Golden Age Green Lantern (Alan Scott); one fought Chris King and Vicki Grant in their “Dial H for Hero” days. Also: Ursula Zandt, a deceased heroine who was part of the backstory in the “Watchmen” timeline. All three apparently used “The” as part of the alias.
MARVEL: At least three; one is a heroine who has served with the New Warriors; I believe she just prefers “Silhouette.”

Silver
DC: Robot member of the third “Metal Men” team; eventually went rogue and was destroyed.
MARVEL: One of the Elements of Doom. Also: A Chinese mutant who ended up in the Alpha Flight training program.

Silver Dragon
DC: Mercenary villain who fought Primal Force.
MARVEL: Alias used by Heather Rand (after she had already died) when she was magically forced to fight her son Daniel (Iron Fist).

Simple Simon
DC: Two villains. One fought Hawkman in the Golden Age; one fought Batman and Robin in the Silver Age.
MARVEL: One user was a gigantic, slow-witted homeless man who was once forced (via threats to his mother) into fighting a gladiator-style duel with Night Raven. He only appeared in one story in the mid-80s. The second is a guy initally looked like a villain; when he debuted earlier this year, he was throwing pies at Spider-Man; but it turned out he was auditioning for a reality show. (Or something like that — I haven’t read the story.)

The Sin Eater/Sin-Eater
DC: “The Sin Eater” is another name for Onimar Synn, who claims to be one of the Seven Devils of Thanagarian mythology.
MARVEL: Several villains have used “Sin-Eater” at one time or another. (I’m not clear on whether all of them used the hyphen; I believe Stan Carter, a cop gone psycho, did.)

Singularity/The Singularity
DC: In the Legion of Super-Heroes continuity following the Post-Zero Hour Reboot, the name “Singularity” was used by a character who had been the champion defender of the planet Lorcus Prime until his homeworld reached such a utopian state that he found he had nothing useful to do. He didn’t handle this well.
MARVEL: “The Singularity” is an energy being who met the Silver Surfer. Another character, “Singularity,” has claimed to be the long-lost illegitimate son of Graviton.

Sinister/The Sinister
DC: “The Sinister” was a Golden Age villain who fought the original Flash.
MARVEL: In at least three alternate timelines, analogs of the villain known on Earth-616 as “Mister Sinister” have evidently preferred to just call themselves “Sinister” instead.

Siphon/Syphon/Psi-Phon
DC: Two villains called “Siphon” — one is a member of the Freak Show; the other fought a Superman/Batman team-up shortly before COIE began, and may not exist in modern continuity. There was also a “Psi-Phon” who was the partner of a “Dreadnaught”; the two of them were artificial lifeforms created by an alien race to test the inhabitants of Earth, which in practice meant fighting Superman and some other superheroes. After Earth had passed the test, Psi-Phon and Dreadnaught self-destructed.
MARVEL: Two users of “Syphon.” One is Thomas Boyd, a Psi-Force character in the New Universe. One was a Warpy who met the Excalibur team at least once.

Siren/Psiren
DC: “Siren” is a water-breathing ecoterrorist villain.
MARVEL: Several “Sirens,” including Jennifer Pearson from the Ultraverse. Marvel also has a woman called “Psiren,” a Psi-Cop who ended up assisting Warlock (the former New Mutant Warlock, that is) in a series he had several years ago.

Note: In each of the first three Drafts of this project, I conscientiously did not mention “Siryn” (Theresa Cassidy, daughter of Banshee of the X-Men) in the “Siren” listing; and each time, someone responded by suggesting I must have overlooked her existence. In the Fourth Draft, I finally broke down and decided to explain my reasons in advance of any objections. To my eyes, “Siren” looks to be pronounced “sigh-ren.” “Siryn” looks as if it should be pronounced “sigh-rin.” The sound of a “short E” in one; the sound of a “short I” in the other. (I have previously admitted that in practice, many speakers of English may just pronounce both names as “sigh-run,” more or less; but they shouldn’t.)

Sizzler
DC: Robot villainess who fought the Metal Men; finally destroyed.
MARVEL: “Sizzler” was a villain whose body was magically animated bacon; one of the “Eggsmen” who worked for Pro Rata in his first clash with Howard the Duck.

Skull/The Skull
DC: Golden Age Quality villain; a Nazi agent who fought Doll Man (I think this guy was just “Skull,” but I could be wrong). “The Skull” was a Golden Age villain who fought Congo Bill (the adventurer later known as “Congorilla”). Two users of “The Skull” fought MLJ’s Golden Age Black Hood a few years apart; the second was the son of the first (who had died fighting The Black Hood, so the son wanted revenge).
MARVEL: Two users of “Skull”; one is Ben Beckley, the very powerful son of Comet Man in the “Earth X” timeline.

Skull Face/Skullface
DC: “Skullface” was a Golden Age Quality villain who fought Plastic Man.
MARVEL: “Skull Face” was an agent of the Yellow Claw.

Skybolt
DC: Alias of Zzlrrrzzzm, a villain who fought the original Infinity Inc.
MARVEL: Two users. One is Vin Stewart, formerly known as “Redneck,” who lost his powers on M-Day but then acquired a power-suit and became part of the New Warriors under this name; he died heroically. The other user (apparently not connected to Vin) is Zack Zimmermann, part of the Anti-Registration Underground.

Skylark/The Skylark
DC: “The Skylark” was a villain who fought the Golden Age Green Arrow.
MARVEL: “Skylark” is Linda Lewis, heroine; member of the Squadron Supreme (in the original version of Squadron continuity); basically a knockoff of the JLA’s Black Canary.

Slag/Slagg
DC: “Slag” is a Milestone character.
MARVEL: One user of “Slagg” and several of “Slag.”

Slash
DC: Two villains, each of whom may have gotten just one appearance.
MARVEL: Two users, apparently both villains.

Slasher
DC: Several, including a hired assassin who fought the Titans in the early 80s and promptly got killed by Adrian Chase, who’d just become the new Vigilante.
MARVEL: Several users.

Sledge
DC: Powerful but dumb character who died heroically.
MARVEL: Two users.

Slingshot
DC: Two users. A Green Arrow enemy (recently killed by Cupid), and a New Blood heroine.
MARVEL: Yo-Yo Rodriguez, member of the Secret Warriors.

Slipstream
DC: Temporary “Dial H for Hero” identity of Lori Morning in post-Zero Hour “Legion of Super-Heroes” continuity. The name was also used by a speedster villain in the early 1990s; he and six friends were all Qwardians with powers and/or gimmicks making them analogous to various well-known JLA heroes. No name was provided for his team in his sole appearance, but it is widely assumed to have been part of the Post-COIE version of “The Crime Syndicate of America” (which had been retconned as being entirely composed of Qwardians imitating JLA heroes). Thus, the Qwardian Slipstream and his buddies may have been erased from continuity in the wake of Grant Morrison’s “JLA: Earth-2″ graphic novel, which rebooted the entire “Crime Syndicate” concept.
MARVEL: Cameron Davis, who served with the X-Treme X-Men for a bit.

Slither
DC: Jimmy Tilton, hero; member of the “Scare Tactics” band; dead.
MARVEL: Aaron Solomon, villain.

Smasher/The Smasher
DC: “The Smasher” was a horribly mutated man who fought Hercules in the post-nuclear-war setting of a 1970s comic book series, “Hercules Unbound.” The Smasher died.
MARVEL: At least six users (but I’m not sure whether any of them normally used the definite article).

Smoke
DC: Three users. First: A Milestone villain who fought Hardware. Second: A vigilante who was one of a group working with The High to change the world (meaning: the Wildstorm version of Earth); he died in the same arc in which he debuted. Third: a villain in the world of “Kurt Busiek’s Astro City” who has a partner called “Mirrors.”
MARVEL: Villain; partner of Succubus; the two of them are agents of Coach.

Snake/The Snake
DC: At least three users of “The Snake.” One was a Golden Age villain who fought Superman. One fought MLJ’s Fly-Man in a single Silver Age story. One was a thug apparently killed by The Assassin (the star of a feature called “Codename: Assassin” which lasted one issue in the 1970s).
MARVEL: Two users; one is a member of China Force.

Snake Eyes/Snake-Eyes
DC: “Snake-Eyes” is a bank robber, part of the Loaded Dice Mob, who fought The Atom (Ray Palmer).
MARVEL: Three users; one uses the hyphen.

Snapdragon
DC: Internet alias used by Lex Luthor on at least one occasion — when he emailed info to Superboy (Kon-El) regarding Superboy’s genetic heritage.
MARVEL: Three users, all female. One was a member of Strikeforce: Morituri until she died.

Sniper/The Sniper
DC: “The Sniper” was a Golden Age hero. Apparently his name was never revealed, but he wore a green costume, carried a sniper rifle, and did his best to make things difficult for Axis soldiers in Occupied Europe and the South Pacific in Quality stories published during WWII. I am told he has never been heard from since; it is not even known if he survived the war. In a story published long afterward, but set in the same war, there was a “Sniper” who fought the Blackhawks after they had become DC characters.
MARVEL: Two users; both villains. One of them was killed by The Punisher.

Snowfall
DC: Temporary “Dial H for Hero” alias of Vicki Grant.
MARVEL: This alias was used by Ginny Snow, a mutant child (precognitive and powerfully telepathic) who was enslaved by a man named Tuval for awhile. After being rescued by Captain America, Ginny apparently committed suicide by walking off a cliff in order to avoid being used for evil in the future. About three decades later, she has never reappeared. But we should note that, before her “suicide,” Ginny had already demonstrated her capability to project illusions into other people’s minds, and I have not heard that anyone ever found and identified her corpse after she supposedly took that fatal plunge . . . so who knows what really happened to her?

Snowman/The Snowman
DC: Two users of “The Snowman.” One fought the Blackhawks in a Silver Age DC story. The other was Klaus Kristin, a Batman villain in the early 1980s; the half-breed offspring of a male Yeti and a human woman; when last seen, Klaus stated he was slowly dying with no hope of a cure.
MARVEL: A character who met the “Ultimate X-Men” — I don’t know if he’s good, bad, or what.

Sodium
DC: One of the second team of Metal Men (all evil).
MARVEL: One of the Elements of Doom.

Solaar/Solarr
DC: “Solaar” is a member of the space-traveling team known as the Vanguard.
MARVEL: “Solarr” was Silas King, villain; dead.

Solarman
DC: Villain who fought the Pre-COIE Superman in one story in the 1970s.
MARVEL: Benjamin “Ben” Tucker, a hero who appeared in two issues of his own title (scripted by Stan Lee) and apparently has never been seen or heard from again.

Song Bird/Songbird
DC: “Song Bird” was a heroine; a member of the Justice Experience team, back around the 1970s (according to retcons in the 90s); died in the line of duty.
MARVEL: “Songbird” is the alias which Melissa Gold, formerly “Screaming Mimi,” took when she and some other villains were founding the Thunderbolts (and she kept the alias after she switched from being a phony superhero to the real thing).

Sonic/Sonik
DC: “Sonic” was a villain, a member of the Speed Boys, in his only appearance. “Sonik” was William Parker, African-American hero on Earth-One who met Superman and Batman; not clear if he still existed Post-Crisis.
MARVEL: “Sonic” was a member of the mercenary group called “the Seekers.”

Southpaw
DC: Nickname or alias of a hoodlum who worked for The Joker in some stories published in the 70s; hasn’t been heard from since; a plausible theory is that he was killed during one of Joker’s mood swings.
MARVEL: Two users. Better known is Sasha Martin, who became a friend of She-Hulk’s.

Sorcerer/Sorceror
DC: “Sorceror” was apparently the codename of a member of the OSS in one or more stories told in “G.I. Combat.” “Sorcerer” was an alias used by a character who was a member of “the National Interest”; he apparently sacrificed himself by allowing his body to be used as a vessel for “the Spirit of America” plus the souls of several other people; this new conglomeration then becoming a brand new hero called “The Patriot” and later becoming the latest user of the alias “Uncle Sam.”
MARVEL: Several characters have apparently used that word (usually spelling it “Sorcerer,” I gather) as a working name.

Spark
DC: Alias used by Ayla Ranzz in the Post-Zero Hour Reboot Version of the Legion of Super-Heroes. (Pre-Zero Hour, she had used the names “Lightning Lass” and “Light Lass” at different times.)
MARVEL: Villain; member of the Avant Guard.

Sparks/Sparx
DC: Firestorm once fought a villain called “Sparx” in the mid-80s. The second “Sparx” is a heroine, Donna Carol Force; she served as a member of the Ravers.
MARVEL: “Sparks” is a villain killed and resurrected by the Hand.

Sparrow/The Sparrow
DC: “Sparrow” was the codename of an Allied spy who died during WWII; “Sparrow” was also the army nickname of a soldier in Sergeant Rock’s Easy Company during that war. In the Silver Age, a music professor agreed to dress up as the costumed hero “The Sparrow” long enough to help Batman and Robin capture a musical villain called The Maestro. (Apparently The Maestro was deliberately leaving “musical clues” which only an expert would be able to correctly interpret.) On the villainous side, the Golden Age Sandman once fought someone called “The Sparrow.”
MARVEL: At least three.

Spear
DC: Mercenary who fought the Titans in the early 1980s.
MARVEL: Two; both villains.

The Specialist
DC: Villain who fought the Golden Age Green Arrow.
MARVEL: A cyborg mercenary assassin in the 2099 timeline. Early in his costumed career, Miguel O’Hara (that timeline’s “Spider-Man”) clashed with “The Specialist” and accidentally killed him.

Specter/The Specter/The Spectre
DC: “The Spectre” is best-known as an alias for a designated instrument of God’s wrath. The role has been filled by Jim Corrigan, Hal Jordan, and Crispus Allen. In his Charlton days, Blue Beetle (Ted Kord) fought a villain called “The Specter.” The Golden Age Johnny Quick once fought a villain who called himself “The Spectre.”
MARVEL: “Specter” was Dallas Gibson, a teenage mutant student in the second “New Mutants” series, who was depowered on M-Day.

Spectra
DC: Heroine; apparently a name used by the former “Halo” in some old “Outsiders” comics.
MARVEL: Selena Slate, who used to fight Sleepwalker but apparently wasn’t such a bad person? (I’m going on hearsay.)

Spectrum
DC: Villain who only appeared in “Super Friends #3” and promptly got killed — along with 99 other supervillains — as part of another villain’s fiendish scheme.
MARVEL: Spider-Man villain who first appeared in the Amazing Spider-Man Digital Exclusive Comic, and in other Spidey comics since then.

Speed Demon
DC: Two users. First: a villain who fought the Inferior Five. Second: Jerry McGee, a Flash villain who later reformed.
MARVEL: At least two villains.

Spellbinder
DC: At least three; all fairly obscure.
MARVEL: Erica Fortune, star of the “Spellbound” miniseries in the late 1980s; last seen imprisoned in a magically created crystal in the early 90s after her brother had to face the fact that continued use of Spellbinder power had made Erica dangerously insane. (Note that Erica was supposed to be just the latest in a long series of incredibly powerful “Spellbinders,” but I don’t know how many of them used that word as a name instead of just a job title.) This name was also used, very briefly, by Danielle Moonstar, heroine.

The Sphinx
DC: Three users? One was a Golden Age Quality villain who fought Doll Man. Another Golden Age Quality villain of this name fought Plastic Man. Two decades later, DC’s Silver Age Plastic Man (said to be the son of the original hero) fought “The Sphinx,” but I think that was supposed to be a new character instead of one of his daddy’s old enemies making a comeback.
MARVEL: The name has been used by both Anath-Na Mut and Meryet Karim, husband and wife, each incredibly powerful. When last seen, they had merged together and traveled back in time a few thousand years to try to get things right the second time around.

Spider/The Spider/Spyder
DC: Five Golden Age villains called themselves “The Spider”; each fought a different one of the following heroes or teams. At Quality: Plastic Man; The Blackhawks. At DC: Mr. America; Green Lantern; Robotman. Meanwhile, there was also a Golden Age Quality hero called “The Spider” (Tom Ludlow Hallaway, an archer) who was much later retconned to have been working on building his own criminal empire all along, and to have betrayed the original Seven Soldiers of Victory to The Nebula Man. In modern times, two of Ludlow’s sons have each tried to take up the mantle — one was a villain, also called “The Spider” — the other is a hero who calls himself “Spyder” or “I, Spyder.” There was also a Silver Age “The Spider” who fought the Archie hero “The Fly.”
MARVEL: Several characters have used “Spider” or “The Spider,” including at least two alternate-timeline analogs of Peter Parker, and also an alternate-timeline analog of Flash Thompson.

Spider Girl/Spider-Girl
DC: “Spider Girl” was a supporting character in “Legion of Super-Heroes”-related comics both before and after the Zero Hour Reboot.
MARVEL: “Spider-Girl” is May “Mayday” Parker, teenage daughter of Peter and Mary Jane, in the alternate future timeline of “MC2.”

Spider Man/Spider-Man/Spiderman
DC: “Spider Man” was a Golden Age Fawcett villain who fought Captain Marvel in “Whiz Comics #89″ in 1947. He had no true powers, but used a special gun to fire liquid plastic which quickly became strands of tough, sticky webbing.
MARVEL: “Spiderman” was a Golden Age villain who once fought Miss America and died in that story; I gather he had no powers of his own, but was simply a mad scientist raising giant man-killing spiders (which eventually ate him). A couple of decades later, Marvel introduced a hero who prefers to punctuate his alias as “Spider-Man.” (His real name is Peter Parker, in case you’ve probably never heard of him before.) Peter has been imitated in that role by other characters at one time or another, including his clone “Ben Reilly” in the mid-90s. As another interesting imitator: In the MC2 timeline, there is a young man who called himself “Spider-Man” for awhile (without permission from Peter); his real background was a considerable mystery at first, but he eventually turned out to be the spider-powered son of the original Spider-Woman (Jessica Drew) as she existed in that alternate continuity.

Spike
DC: Name, presumably an alias, used by a member of the League of Assassins. (Note: After some thought, I’m not counting the toddler Cecil “Spike” Wilson of “Sugar & Spike” fame, because I don’t think he was trying to use “Spike” as an alias. Although the fact that I’ve never read any of the original stories means I could be wrong.)
MARVEL: Many users; perhaps as many as nine if we count an ant which has assisted Eric O’Grady (the third Ant-Man); I’m not familiar with Eric’s stories and don’t know just how intelligent that ant is.

Spinner
DC: Villain who apparently fought Batman and Robin just once in the Silver Age.
MARVEL: At least two. An extraterrestrial; apparently a hero and a member of the “Galactic Alliance of Spider-Man” (whatever that means). Also: A new character who joined Freedom Force as part of “the Initiative” program.

Spiral/Spyral
DC: “Spiral” is a member of the demon-hunting group known as the Hell-Enders.
MARVEL: At least two users of “Spiral”; the more famous one is a six-armed woman who often works for Mojo. In the MC2 timeline, there is a villain called “Spyral.”

Spirit/The Spirit
DC: “Spirit” was a supporting character in the 1970s “Kamandi” stories. “The Spirit” (Denny Colt) was created by Will Eisner in the Golden Age and for decades had no connection to DC, but Eisner is dead and I’ve read that DC now has permission to not only publish new “Spirit” stories, but to incorporate him into their established continuity.
MARVEL: A Marvel UK character who was wiped out by the Annihilation Wave.

Spitfire
DC: At least two. First: Nickname of Tex Adams, a fighter pilot with the “Eagle Squadron” during WWII. Second: Joshua Terrill, first-born child and onetime sidekick of the Golden Age Ray, still about ten years old (when last seen?) because of time spent in suspended animation.
MARVEL: Jacqueline Crichton, later Lady Falsworth, who was retconned into Marvel’s Golden Age continuity in the “Invaders” title in the 1970s. Later, another Spitfire was a heroine in the New Universe.

Spoiler/The Spoiler
DC: The Golden Age Hawkman once fought a villain of this name — although according to my online research, we may only know that fact from a retcon in the Elseworlds miniseries “The Golden Age”? At any rate, the best-known user is Stephanie Brown, who had this identity for over a decade and also served as the fourth Robin of modern continuity before dying in “War Games” — or so we thought at the time. (A few years ago a retcon told us her death was faked, and now she’s the fourth “Batgirl.”)
MARVEL: Mercenary who fought Spider-Man. Also: A villain from “Spidey Super Stories.”

Sponge/The Sponge
DC: Miklos, a character who appeared in one or more old “Challengers of the Unknown” stories, was apparently known as “Sponge-Man” and also as “The Sponge”; he died bravely. Later, a Milestone character used the name.
MARVEL: “Sponge” was one of the Warpies; a mutated child who appeared in “Excalibur” way back when. I know almost nothing about her. There was also a “Sponge” in DP7 of the New Universe.

Spook/The Spook
DC: At least two. The first “The Spook” is Val Kaliban, a Batman villain without true powers, but a master of using special effects to create the impression he’s a ghost or other supernatural being; most of his appearances happened in the Pre-COIE era. Also: Another villain in a “Legends of the Dark Knight” story arc who also fought Batman; he may have been intended as a “Post-Crisis Reboot” of the same concept, but the original Spook (Kaliban) has since been worked into Grant Morrison’s run on the Batman title (and Kaliban apparently died in the same story in which he appeared there, but if he later “comes back from the dead” it won’t be the first time!).
MARVEL: At least three users.

Spore
DC: Constance Hollis, a Plant Elemental villain.
MARVEL: A Deviant mutate who liked to absorb Eternals and — apparently — make himself immortal thereby.

Squid/The Squid
DC: Four villains and one hero have used “The Squid.” The hero was Robby Reed in the Silver Age; one of his temporary “Dial H for Hero” identities. Now for the villains. First, a Golden Age Quality gangster who fought Midnight. Second, a Batman villain who actually kept a pet squid around so he could feed his enemies to it; he was working hard to take overall command of the Gotham rackets until he was killed by Killer Croc in 1983 — but I recently learned that this guy’s death was implicitly retconned when he was seen alive and well during “52.” Third, a villain who fought Chris King and Vicki Grant in their “Dial H for Hero” days. Fourth, a villain who fought Elongated Man in the early 1990s.
MARVEL: “The Squid” is Donny Callahan, a Spider-Man villain. There is also an Atlantean character who has called himself “Squid.”

Squire
DC: Three people have been “Squire” at different times. The first and second (father and son) each later became “Knight.”
MARVEL: Superhero who died in the “Marvel: The Lost Generation” mini.

Stalker
DC: Fantasy character who briefly had his own series in the 70s; was later revealed in a retcon to have died in WWII. Another “Stalker” was a villain who appeared in the “Supergirl” title written by Peter David. Also, in the Wildstorm universe, “Stalker” was a member of a secret Stormwatch team; like most of the team, he died on their first real mission, leaving Apollo and The Midnighter as the only survivors; we learned of this in a flashback sequence, years after the fact.
MARVEL: Several users.

Starburst
DC: Temporary “Dial H for Hero” identity of Vicky Grant.
MARVEL: Linda Warren, Ultraverse heroine; she had already been comatose for a few years before we ever heard about her.

Starlight
DC: At least two. The first is a Milestone character. The second is Natasha Irons, formerly the fourth DC hero to be known as “Steel.”
MARVEL: Tania Belinsky, formerly a Red Guardian; she had served as a Defender for awhile.

Starshine
DC: Presumably an alias; this was the only name used by a hippy character in a two-part Superman story (Pre-COIE) who was temporarily gifted with the power to make people do whatever he said, even if it required “miracles” to make that happen.
MARVEL: This name has been used by three different Spaceknights, including Brandy Clark.

Stasis
DC: Villain; member of a group called “Lilian Hawkes’s Freak Show” which fought Hal Jordan in the late 80s.
MARVEL: Villain; member of the Viral Swarm.

Stat
DC: Member of the Force Family; has super-speed.
MARVEL: Spider Beach, a member of the Crazy Eight group; one of two members who apparently retained their powers after Wonder Man tried to depower all eight for their own good. (Note: The “Crazy Eight” group should not be confused with either of the Marvel characters who have used the personal alias of “Crazy Eight.”)

Static
DC: Virgil Ovid Hawkins, a Milestone hero who has joined the Teen Titans.
MARVEL: At least three users.

Stealth
DC: Heroine; member of L.E.G.I.O.N.
MARVEL: At least three.

Steamroller
DC: Villain.
MARVEL: Member of the Unlimited Class Wrestling Federation. (That’s all I know.)

Steel
DC: Four heroes have each used “Steel” (some of them have used other aliases at other times). Hank Heywood was “Steel” and then “Commander Steel” in WWII, as established in retcons in the 70s and 80s. His grandson, Hank Heywood III, was “Steel” in the days of the Justice League Detroit era; he was killed as that era ended. Since then, John Henry Irons and his niece Natasha Irons have each used the name “Steel” while wearing armored suits.
MARVEL: An alias/codename used by Lt. Col. Jody Choate, U.S. Army, who received powers from a super-soldier serum and then died fighting the Man-Thing. Another “Steel” was one of the Dragon’s Claws in a Marvel UK series set in the year 8162.

Steel Hawk/Steelhawk
DC: “Steelhawk” is a superpowered mercenary.
MARVEL: “Steel Hawk” is Arun Bakhti, a terrorist/mercenary/assassin.

Sting/The Sting
DC: The first “Sting” was a villain who fought the Golden Age Tarantula. Later, “Sting” was a temporary “Dial H for Hero” identity of Chris King. “The Sting” was a villain who fought Ray Palmer, but later reformed and allowed Ray Palmer himself (supposedly dead at the time) to infiltrate the villainous group known as the Micro Squad by posing as “The Sting.”
MARVEL: Apparently “Sting” was the name used by a member of the “Outcasts of New Mexico” who had begun life as a simple scorpion.

Stinger
DC: Three villains; one is a Milestone character who fought Kobalt.
MARVEL: Several different users.

Stoneface
DC: Golden Age Quality villain who fought The Jester.
MARVEL: Former leader of Harlem gangs.

The Stranger
DC: Martian villain who fought Batman in 1953.
MARVEL: The most famous user is an enigmatic white-haired alien of incredible power; a couple of other people have also used this name.

Stranglehold
DC: Female assassin who fought the Titans.
MARVEL: Deviant; member of a group called “the Sword” that worked for the Damocles Foundation; fought X-Force; last seen being turned into a lizard?

Strangler/The Strangler
DC: “The Strangler” was a Nazi agent who fought MLJ’s The Shield in a Golden Age story.
MARVEL: “Strangler” is a villain; a member of Shatterforce.

Stretch
DC: Two users. One was an Earth-S villain who fought the Marvel Family in the Pre-COIE era. The other is Tom Longacre, retconned into the DCU’s “Golden Age” continuity in the late 80s as a superheroic, Gingold-drinking predecessor of the Elongated Man. Ended up with “Hero Hotline.”
MARVEL: Member of the second Pride in “Runaways.”

Strobe
DC: Villain who fought Ray Palmer.
MARVEL: Villain; member of the Mutant Liberation Front

Strong Man/Strongman
DC: “Strongman” was a villain who fought the Justice League in the late 70s, as part of the evil “Luck League.”
MARVEL: At least two users of “Strong Man” and two users of “Strongman.”

Strongarm
DC: Character who works for the villainess Roulette; he claims to be a former member of a heroic group called the Crimebusters.
MARVEL: Four users.

Strontium
DC: Villain who fought Metamorpho and was destroyed
MARVEL: Presumably one of the Elements of Doom.

Stunner
DC: Cybele Sahin, a villainess who has fought DC’s current version of the Red Circle hero “The Web.”
MARVEL: STUNNER (Angelina Brancale) – obese woman, given perfect form via dr. octopus’s virtual reality projection device, later sacrificed self to resurrect dr. octopus
(1990s, net)–Amazing Spider-Man I#397 (Spider-Man Unlimited #18(fb11)/Amz427(fb1+2), A397, Spectacular Spider-Man II#220, Amz398, Spec221, Web of Spider-Man#124, SpdmUn9, Web126, A403, Spider-Man#59, Amazing Scarlet Spider#2, Scarlet Spider#2, Spectacular Scarlet Spider#2, A426-428, SpUnl#18, 18/3

Stuntmaster
DC: Temporary “Dial H for Hero” identity of Chris King.
MARVEL: George Smith, who’s been a villain, a hero, and a TV actor.

Stuporman
DC: Golden Age Quality villain; a superstrong, invulnerable, rather stupid giant who fought The Clock.
MARVEL: Apparently a Golden Age parody of some other comic book superhero. (Yes, I could make a wild guess which hero they had in mind, but I don’t know anything for sure beyond what I just said. I haven’t read that story, and the online reference I found didn’t specify who was being mocked.)

Sublime
DC: Rachel Goldman, member of Wildstorm’s DV8.
MARVEL: Sentient bacteria; villain.

Sugar
DC: Two users. First: the deceased former partner of the villainess “Spice” in the world of “Kurt Busiek’s Astro City.” Second: After Peyton Riley chose to pick up where the late Arnold Wesker (the original “Ventriloquist” of Batman continuity) had left off, she started having “Scarface” call her “Sugar” all the time. This meant she was really calling herself by the alias “Sugar” whenever she spoke in a masculine-sounding voice, of course. (Some online resources refer to Peyton as the new Ventriloquist, but I don’t believe she habitually introduces herself that way.)
MARVEL: One of the X-Babies; the counterpart of Rogue of the X-Men.

Suicide King
DC: Justin Quinn, villain. An operative of the Network, he uses many roles in his missions, but “Suicide King” was allegedly his only costumed supervillain-type role. He fought The Huntress (Helena Bertinelli).
MARVEL: Two villains. One was part of the Ratpack in the 2099 timeline; one is the leader of a group called the Renegades.

Sultan/The Sultan/S.U.L.T.A.N.
DC: In a story published in 1954, Superman met a pro wrestler whose professional alias was “The Sultan.”
MARVEL: “Sultan” (or “The Sultan”?) was a slave trader who was defeated by Tigra in the 1990s. “S.U.L.T.A.N.” was a cyborg villain; a former weapons designer for SHIELD; he died in his first appearance in a Captain America story in the 1980s. His alias stood for “Systematic Ultimate Lawless Takeover of All Nations.”

Sumo
DC: At least three. Two were villains; the other was a Japanese super-powered soldier who fought the All-Star Squadron in WWII.
MARVEL: Several users.

Sun Girl
DC: Villain in the current “Titans East” group.
MARVEL: Mary Mitchell, superheroine in the Golden Age. Had her own title for three issues; then served as a new sidekick to the original Human Torch.

Sunshine
DC: Name, presumably an alias, of a gang leader in Gotham who appeared in a single story in 1981.
MARVEL: Autumn MacRae, heroine; depicted in “Marvel: The Lost Generation.” Also: an “Inquisitor” who met Mantra in the Ultraverse.

Sunspot
DC: Temporary “Dial H for Hero” identity of Vicky Grant. Also the name used by a villain who was defeated by Guy Gardner during the “Legends” miniseries; apparently the guy never reappeared.
MARVEL: Roberto DaCosta, founding member of the original New Mutants.

Superior Man/Superiorman
DC: “Superior Man” was an alien superhero who just happened to bear a striking resemblance to The Frankenstein Monster; he appeared in one issue of the old “Super Friends” title. “Superiorman” was used by another character, a villain, in a later issue of “Super Friends.”
MARVEL: “Superiorman” was a name used for a character who was an obvious Superman parody in at least one issue of “What The–?”

Supernova
DC: Alias used by Booster Gold in the “52″ series.
MARVEL: Apparently another alias of Nova Omega (Garthan Saal), who is now dead.

Supreme One
DC: Villain who used to fight Aquaman.
MARVEL: Leader of the Quists; boss of the alien known as Lucifer who originally crippled Professor X.

Sureshot
DC: Member of the demon-hunting group called the Hell-Enders.
MARVEL: Two users. One is a female villain. One was an agent of the XSE in Bishop’s native future timeline; that character died in action.

Swami/The Swami
DC: A Golden Age Quality villain used this alias while fighting Plastic Man. Much later, Johnny Witts, a Batman villain, used the alias “The Swami” in one story.
MARVEL: “Swami” was Hamilton Hart, a member of the Paranormal Platoon in the New Universe; he died when Pittsburgh was destroyed.

Swarm/The Swarm
DC: Two villains have used “The Swarm”; one fought Chris King and Vicki Grant in their “Dial H for Hero” days; the other is a Milestone villain.
MARVEL: “Swarm” is Fritz von Meyer, diehard Nazi. His “body” is just a skeleton surrounded by zillions of mentally controlled bees; hence the name.

Swashbuckler
DC: Michael Carter, hero, based in Houston, Texas. Nephew of Greg Saunders, the cowboy-themed “Vigilante” who was a member of the original Seven Soldiers of Victory. Swashbuckler teamed up with Batman once in 1980, and has never been heard from since.
MARVEL: An ally of Deathlok’s in his native timeline.

Swift
DC: Winged vigilante who became a member of the Authority; she probably thought she was a hero.
MARVEL: At least three users.

Switchblade
DC: In the continuity of “Kurt Busiek’s Astro City,” this was used by one of the original members of the heroic group called the Astro City Irregulars when they formed in the 1970s.
MARVEL: Two users; in one case this was the alias used by the evil entity known as Demogorge when it had possessed the body of Eric Brooks (better known as Blade, the vampire hunter).

The Swordsman
DC: Villain who fought the JSA in one Golden Age story.
MARVEL: Several users; probably the most famous is Jacques DuQuesne, initially a criminal who infiltrated the Avengers while pretending to be a hero; then he started to repent of his misdeeds; much later, after he died, his body was raised and possessed by one of the Cotati so that it could mate with Mantis, who’d recently been revealed to be the Celestial Madonna. (DuQuesne’s reanimated body has since crumbled to dust.)

Taboo/Tabu
DC: “Taboo” is Amanda Reed, Wildstorm heroine. There was also a “Tabu” who was a female mercenary; she fought Animal Man and later died.
MARVEL: “Taboo” is a villain; stepfather of Topaz the sorceress.

Tachyon/Takion
DC: “Takion” was Joshua Sanders, an Earthman who was transformed by Highfather of New Genesis into a Source Elemental (and an avatar of Highfather for future use); he is now dead.
MARVEL: “Tachyon” is a Centaurian female who is part of “the Force” (a group that has fought the Guardians of the Galaxy in their native era).

Talon/The Talon
DC: “The Talon” was a Golden Age Superman villain. “Talon” is the name traditionally used on Earth-3 of the New Multiverse by young sidekicks of whoever is “Owlman” at the time; the Earth-3 analogs of Jason Todd and Tim Drake have each used that name (as have others in the past who were just alluded to, I think); the Earth-3 Tim Drake eventually migrated to New Earth and served with the Teen Titans for awhile in the role of “Talon.”
MARVEL: “Talon” is a former codename for “X-23.”

Tangle
DC: Villain; part of the Council of Spiders.
MARVEL: Gina Palumbo of the New Enforcers.

Tangler
DC: A villain who debuted as one of many metahumans who were running wild in Bludhaven in the “Robin” title around the time of “Infinite Crisis.”
MARVEL: Rodney Weigland, a New Universe character.

Tantalum
DC: Villain who fought Metamorpho and was destroyed
MARVEL: Presumably one of the Elements of Doom.

Tarantula/The Tarantula
DC: Looks like at least six of them. Jonathan Law, Golden Age hero. Also, a villain who fought the Golden Age Doctor Mid-Nite. Also, a villain who once fought the Golden Age Sandman (Wesley Dodds) in a story of that era. There was another villain of the same name who fought Wesley Dodds, according to a 1990s story arc in the “Sandman Mystery Theatre” series — but since that was a Vertigo title, it may not have any bearing on the “mainstream” continuity. In the Earth-One continuity of the 1970s, there was a gangster of this name who tangled with Superman. In modern times, we have met Catalina Flores, a killer vigilante; she apparently died while taking the supervillain “Junior” with her.
MARVEL: Several characters. The newest one is Maria Vasquez.

Target/The Target
DC: During his Bludhaven days, there was one story in which Dick Grayson used “The Target” instead of “Nightwing.”
MARVEL: Two users. At least one of them (a guy who met Wolverine in his first regular series) didn’t use “The” in front of “Target.”

Tarot
DC: Marguerita Arroyo Covas, ally of Gangbuster, from the Trinity series.
MARVEL: Marie-Ange Colbert, one of Emma Frost’s original Hellions; she came back from the dead during “Necrosha,” but I’m not clear on her current condition.

Tattoo
DC: At least three. One was a villain who fought the Golden Age Green Arrow; one was Black Mask’s second-in-command in the early 90s; one was a terrorist who fought Aztek.
MARVEL: Several users.

Tech/Tekk
DC: “Tekk” is a villain who fought Peter Cannon, Thunderbolt.
MARVEL: Two users of “Tech.” One was a villain who once fought the Fantastic Four. One is Lela Cho, leader of the Solution in the Ultraverse.

Technocrat
DC: Geoffrey Brown, hero; served with the Outsiders in the 1990s.
MARVEL: Two users.

Tempest
DC: At least three. Temporary “Dial H for Hero” identity of Vicky Grant. Joshua Clay, Doom Patrol member, dead. Later the new alias of Garth (formerly “Aqualad”).
MARVEL: The alias previously used by the Shi’ar Imperial Guardsman later known as Flashfire. More recently, the name used by Nicolette Giroux of the Exemplars.

Templar
DC: Colin Brandywine, telekinetic British hero; used to lead the Conglomerate.
MARVEL: Hero in the First Line; died fighting Skrulls in “Marvel: The Lost Generation.”

Ten-Pin/Tenpin
DC: “Ten-Pin” was the alias or nickname of a crook who was part of a gang in an Earth-One Superboy story.
MARVEL: “Tenpin” was a villain; one of the Death-Throws. “Tenpin” was also used for a “What The–?” parody version of Wilson Fisk (Kingpin) in one story.

Terror
DC: At least two users of “The Terror”; both villains. One fought Quality’s “The Clock” in the Golden Age; the other fought The Creeper in the first issue of his title in the late 60s. “Terror” is also used by one of the Three Faces of Evil; all three of them are evil children of the wizard Shazam. (If I’ve got this right, Shazam now has at least four evil children in modern continuity, which says marvelous things about his parenting skills.)
MARVEL: Laslo Pevely, Golden Age hero; apparently he also used “Captain Terror.”

Thallium
DC: Villain who fought Metamorpho and was destroyed.
MARVEL: One of the Elements of Doom.

Thermal
DC: Former Suicide Squad member.
MARVEL: Molly Peterson, a member of the incarnation of the “Mutant Liberation Front” which was secretly a group of normal humans who’d been artificially empowered by the radical group “Humanity’s Last Stand” so they could work hard to make mutants look bad. Molly appeared in one Punisher story arc in the 90s and apparently hasn’t been heard from since.

The Thinker
DC: At least four of them.
MARVEL: The preferred alias of the brilliant villain whom others usually call “The Mad Thinker.”

Thor
DC: A few characters have used this name without being presented to us as “the real Norse thunder god.” One was a Golden Age villain; another fought Batman and Robin in a Silver Age story.
MARVEL: At least one phony Thor appeared in the 2099 titles; his appearance was substantially different from the usual look of Marvel’s “real” Thor Odinson of Asgard. (For the purposes of this list, I’m not interested in counting any characters who, at one time or another, have done an excellent job of imitating the distinctive look of Marvel’s “real” Thor.)

Thorn/Thornn
DC: At least two “Thorns.” First: Rose Canton, the Golden Age version of the “Rose and Thorn” concept, and the mother of Jade and Obsidian. Second: xxx (Rhosyn “Rose” Forrest?) Rose Forrest, the more modern version of the “Rose and Thorn” concept.
MARVEL: Multiple users; looks like at least two for each spelling; one “Thornn” was the sister of Feral of X-Force in the 1990s.

Thumbelina
DC: A temporary “Dial H for Hero” alias of Vicky Grant.
MARVEL: Kristina Suggs, member of the Mutant Liberation Front.

Thunderbolt
DC: Four users. One was a Golden Age villain who fought Tex Thompson, the original “Mister America.” Then there was the hero Peter Cannon, who started as a Charlton character. Also, I believe the Golden Age Johnny Thunder’s magical helper was frequently just called “Thunderbolt” and/or “T-Bolt.” And in the 1980s Jonni Thunder was also called “Thunderbolt.”
MARVEL: William Carver, African-American speedster hero, now dead. Marvel also has another “Thunderbolt” speedster who got one appearance in an old Hulk story; real name unknown.

Thunderer/The Thunderer
DC: At least three users.
MARVEL: One “The Thunderer” was a Golden Age hero named Jerry Carstairs who, in his final Golden Age appearance, renamed himself “The Black Avenger” (don’t ask me why). It appears a couple of other characters have also used “Thunderer” or “The Thunderer” as an alias or as part of a longer name.

Thunderhead
DC: At least four users. The first was a villain who fought the Golden Age Green Arrow. The second was a villain who only appeared in “Super Friends #3” and promptly got killed — along with 99 other supervillains — as part of another villain’s fiendish scheme. The last two are heroes; one is (or was?) part of the Hero Hotline; the other served with the Young Heroes.
MARVEL: At least two users; one was a New Universe character.

Tiger/The Tiger
DC: “The Tiger” was a Golden Age villain who fought the original Air Wave. Another “The Tiger” was a Golden Age villain who fought one of the two Golden Age Manhunters (Paul Kirk, as it happened). “Tiger” was the heroic alias used by a Japanese orphan who was the first Judomaster’s sidekick during and after WWII (although the duo only debuted in Charlton stories in the 1960s); that character later became an insane villain known as “Avatar.”
MARVEL: Several users.

Tiger Shark
DC: “Tiger Shark” was apparently the nickname and/or official codename of a U.S. Navy officer who commanded a vessel known as “The Phantom Clipper” in WWII. (One online resource gives me the impression that “Shark” may have been the officer’s real surname, but don’t hold me to that!) Another “Tiger Shark” was a villain who once fought the Golden Age Batman.
MARVEL: Todd Arliss, villain.

Tiger-Man
DC: Two brothers, Dean and Desmond Farr, have successively used the heroic alias “Tiger-Man.” Dean, who used it first, is dead. But before they ever came along, a villain of this name had fought the Golden Age Robotman.
MARVEL: There were Golden Age characters called “Armless Tiger-Man” and “Trojak the Tiger-Man.” Listings for this alias on marvunapp.com imply that that both of those guys may have sometimes settled for just being called “Tiger-Man,” but I am not in a position to swear to the details of how they habitually introduced themselves in their stories, since I’ve never read any of those stories!

Tigra
DC: Darkseid’s ex-wife; mother of Orion.
MARVEL: Greer Grant, heroine.

The Tigress
DC: At least four women have used this name. First: A Golden Age villainess who fought Zatara. Second: A villainess who fought the Blackhawks in their Quality days. Third: A young woman who used this name as a heroic alias while part of the Young All-Stars, but later became the villainess known as “The Huntress” (no relation to such characters as Helena Wayne or Helena Bertinelli). Fourth: In modern times, a villainess who is the daughter of the Tigress/Huntress character I just mentioned.
MARVEL: “Tigress” was another name for Chia, a woman who existed in Conan the Barbarian’s lifetime. (Conan is no longer published by Marvel, but I gather that Chia/Tigress was and still is their property? I may be dead wrong about this; Conan lore is not my strong suit.)

The Timekeeper/The Time-Keeper
DC: “The Timekeeper” is a villain who fought the Zoo Crew in the early 1980s. “The Time-Keeper” is a villain in the world of “Kurt Busiek’s Astro City.”
MARVEL: “The Timekeeper” was a scientist who worked for AIM.

Tin
DC: One of the original Metal Men.
MARVEL: Presumably one of the Elements of Doom.

Tiny
DC: At least two users; the first was a midget member of a crimefighting group called the Purple Trio in some of Quality’s Golden Age stories.
MARVEL: At least three people have apparently used this as a nickname, including one of Sergeant Fury’s Howling Commandos.

Titan
DC: Villain who fought the modern Wonder Woman.
MARVEL: Member of the Shi’ar Imperial Guard.

Titania
DC: At least two. One was a villain in pre-Zero Hour “Legion of Super-Heroes” continuity. The other is the Faerie Queen who appeared in the “Books of Magic” stories and probably falls into the “public domain” exemption I listed above, but I’ll mention her anyway. (Especially since I’ve read precious little of the “Books of Magic,” so it’s hard for me to judge.)
MARVEL: At least two. Davida DeVito, villainess, dead. Mary “Skeeter” MacPherran, villainess.

Titano
DC: Both Pre-COIE and Post-COIE, Superman has fought giant apes called “Titano.”
MARVEL: “Titano” was the name given to a gigantic rampaging crustacean which appeared in a single story in 1960; it was last seen trapped in a glacier.

TNT
DC: Golden age hero, partner of Dan the Dyna-Mite; died in action during WWII, according to a retcon in the 1980s.
MARVEL: The military nickname and/or callsign of General Harry Kenkoy.

Tokamak
DC: Henry Hewitt, villain who fought Firestorm in the 1980s; believed dead.
MARVEL: Villain; member of the Viral Swarm.

Tom Thumb
DC: Golden Age Quality villain who fought Doll Man.
MARVEL: Hero and brilliant inventor, member of the original Squadron Supreme; died of cancer during the 12-part miniseries written by Mark Gruenwald. (But he was then cryogenically frozen in case he could be revived and healed later on.)

The Top Man
DC: Alias or nickname of a criminal who appeared in a single Flash story in the early 70s.
MARVEL: A former Maggia leader who was defeated by the Fantastic Four and was then assassinated for his failure.

Topaz
DC: One of the RECOMbatants who fought the Titans and then died. There is also a prince named “Topaz” in Gemworld.
MARVEL: Young sorceress heroine. Also: a Queen of Gwendor, member of Ultraforce, heroine, in the Ultraverse.

Topper
DC: Villain who fought Richard Dragon and Lady Shiva in a story in the 1970s.
MARVEL: A member of the Buzz-Boys on Earth-905.

Torpedo
DC: . Villain; leader of “the Awesome Threesome” group which fought Aquaman in the Silver Age.
MARVEL: At least three users.

Torque
DC: Dudley Soames, villain; dead.
MARVEL: Several users; one is a villainess, one of the Twisted Sisters in Shadow City.

Toxin/Toxyn
DC: “Toxin” was Isaac Fisher, a villain who died fighting Aquaman and Swamp Thing.
MARVEL: At least two users of “Toxin”; one is a former cop who somehow got bonded with a symbiote spawned from Carnage and has tried to act heroically since then. Also, “Toxyn” was a member of Strikeforce: Morituri; dead.

Tracer
DC: Villain; one of the Extremists from the world of Angor (an alternate Earth, actually). After he died, he was replaced by a robot double under the control of Dreamslayer; that was the only one Justice Leaguers of the mainstream Earth of the DCU ever actually fought.
MARVEL: Two villains.

Trance
DC: Two users. First: A Wildstorm villain who leads a group called “the Freaks.” Second: A magical villain who debuted in “DCU Villains Secret Files #1″ in 1999 and has (I gather) remained obscure and mysterious ever since.
MARVEL: Hope Abbott, mutant; member of the Paragons at the Xavier Institute.

Trapper
DC: A villain who appeared in at least one Batman story in the 1950s; his real name was “Jason Bard.” (Not the same guy as the private investigator in Gotham who debuted much later; it seems to be sheer coincidence).
MARVEL: One of the Spaceknights; died in the line of duty.

Trauma
DC: Member of the S.T.A.R. Corps.
MARVEL: At least three users; one was an Ultraverse character.

The Traveler/Traveller
DC: “Traveller” is a bearded mystic who works for the Parliament of Stones. “The Traveler” was a villain who only appeared in “Super Friends #3″ and promptly got killed — along with 99 other supervillains — as part of another villain’s fiendish scheme.
MARVEL: “The Traveler” was an alias used by Cable in his younger days, apparently when he was doing some time-traveling before finally ending up in the “modern era” of the Marvel Universe as a regular thing.

The Trickster/Trixter/The Trixter
DC: Four users of “The Trickster,” all villains, although two of them appeared in just one Silver Age story apiece and were promptly forgotten. Those two had no visible connection to James Jesse (aka Giuseppe Giovanni), the Trickster who was a Flash villain for a long time before reforming; nor to Jesse’s successor Axel Walker. “Trixter” was a villain who once fought the Golden Age Wonder Woman.
MARVEL: At least four users of “The Trickster”; the first was a Golden Age villain who fought Captain America. There was also “The Trixter” who once fought Daredevil in the 1980s and seemed to die by electrocution at the end of the story; the character was so sneaky that Daredevil found himself wondering if the death might have been faked. (I gather there’s never been any follow-up on that point.)

Trigger/The Trigger
DC: At least three or four bad guys, apparently all regular gangster types, have used the alias or nickname of “Trigger” or “The Trigger”; I’m not sure any of them had more than one appearance apiece.
MARVEL: At least two users, both obscure.

Trog/Trogg
DC: “Trogg” was one of Bane’s henchmen in the “Knightfall” days.
MARVEL: “Trog” was a name used by an entity created by the villain Father Darklyte. That “Trog” appeared to be a big ugly caveman with superhuman strength and a club; was destroyed by Son of Satan in the same story; never appeared again. “Trogg” is an Asgardian rock troll.

Tuatara
DC: Jeremy Wakefield, hero from New Zealand; served with the Global Guardians; last seen in a comatose condition.
MARVEL: Araoha Tepania, villainess who once fought Iron Man.

Tundra
DC: Russian heroine; has served with the Global Guardians.
MARVEL: One of the Great Beasts that have fought Alpha Flight.

Turmoil
DC: Villain; agent of Intergang in the Post-Crisis Superman continuity.
MARVEL: A villain who worked for the Mandarin as one of his “Avatars” group in a single issue of “Iron Man” and has never been heard from again.

Turtle Man/Turtle-Man
DC: A character sometimes known as “Turtle Man” and sometimes as “The Turtle” was the first supervillain to ever fight the Silver Age Flash (Barry Allen) in Barry’s debut story.
MARVEL: “Turtle-Man” was a Golden Age villain who fought Captain America.

Twilight
DC: A few users; one is a Milestone character.
MARVEL: At least two. One is a mutant in the “X-Nation 2099″ series. Another was a member of the New Universe’s DP7 group; apparently died in a battle with the Famileech.

Typhoon
DC: Two users; both villains.
MARVEL: Two users; one is a villain; one is a detective who works as the partner of someone called “Cutlass.”

Tyr
DC: Villain in Legion of Super-Heroes continuity, both before and after the Zero Hour Reboot.
MARVEL: Marc Devlin, Marvel UK hero; one of the Gene Dogs.

Ultra Girl/Ultra-Girl/Ultragirl
DC: “Ultra Girl” was a temporary “Dial H for Hero” alias of Vicky Grant.
MARVEL: Tsu-Zana is a Kree girl who grew up in California thinking her name was Suzy Sherman; she debuted as a heroine in the 1990s and served with the New Warriors for a while; I’m told that her heroic alias has sometimes been lettered as “Ultra Girl” and sometimes as “Ultra-Girl.” Also: The Ultraverse character eventually known as “Phade” was sponsored by a program within the U.S. government, and its leaders apparently considered calling her “Ultragirl,” and then settled on “Ultrawoman” — but that plan was derailed when she took matters into her own hands at a press conference by unexpectedly introducing herself as “Phade.” I’m not clear on whether “Phade” was stated or implied to have ever previously called herself “Ultragirl” and/or “Ultrawoman” at least once or twice before that scene, but I mention this to be on the safe side.

Umbra
DC: Tasmia Mallor used this alias in the Post-Zero Hour Rebooted version of Legion of Super-Heroes continuity. (In the original continuity, she was “Shadow Lass.”)
MARVEL: Patrick Nesbitt, one of Rogue’s Advocates at the Xavier Institute. His name and alias were only provided in an OHOTMU issue, although he’d previously been seen in cameo (along with his fellow Advocates).

Undertaker
DC: Golden Age Quality villain who fought Doll Man.
MARVEL: Crimelord in the timeline of Death’s Head.

Undertow
DC: A supervillain who tried to break out of the Slab and died in the attempt — it was his first and only appearance.
MARVEL: Atlantean hero; he served as leader of an Atlantean trio called “Surf” in the two stories in which they appeared.

Unicorn/The Unicorn
DC: “The Unicorn” was a temporary “Dial H for Hero” alias of Vicky Grant.
MARVEL: At least three users.

The Unknown
DC: A Golden Age Quality hero. This alias was also used in one story by a villain who fought the Golden Age Starman; it turned out the role was just a temporary disguise for a villain whom Ted Knight had met before; a guy usually known as “The Light.”
MARVEL: A demonic villain called “The Unknown” debuted in “Thor #136″; this entity later was called “The Lurking Unknown.” “The Unknown” was also an alias which the Grandmaster employed when referring to his mysterious opponent (a personification of Death, as it turned out) in the early-80s miniseries “Contest of the Champions.”

Uranium
DC: Evil robot created by Doc Magnus before he created the Metal Men.
MARVEL: One of the Elements of Doom.

Vagabond
DC: Golden Age hero in at least one story from Quality.
MARVEL: Priscilla Lyons was a flag-suited heroine when using that name, although she later moved away from that and spent time working in the “Scourge of the Underworld” organization.

Valkyrie
DC: Golden Age Quality villainess who fought the Blackhawks.
MARVEL: Several users (besides the ones who are “real” Valkyries of Norse Myth, residents of Asgard.)

Valor/Val-Or
DC: “Valor” is a heroic alias sometimes used by the character also known as Mon-El, Lar Gand, and M’Onel. He had his own series as “Valor” in the early 90s — just before the Zero Hour Reboot of everything relating to the Legion of Super-Heroes. I don’t think subsequent incarnations of the character have resumed the use of “Valor.”
MARVEL: “Val-Or” is a mutant Moloid with telepathic abilities.

Vapor
DC: Two useCarrie Donahue, heroine. Another “Vapor” was a super-powered druglord who debuted and died in “The Battle for Bludhaven.”
MARVEL: Ann Darnell, villainess; member of the U-Foes.

Vault
DC: Villain; member of the mercenary team called Dark Nemesis.
MARVEL: One of the Hellbent.

Veil/The Veil
DC: Four users. One was a Golden Age villain who fought the original Starman (Ted Knight). Another was a different Golden Age villain who fought Captain Triumph (according to a 1990s retcon by Grant Morrison, I gather); the third was a Golden Age hero, part of the Seven Shadows (according to an early-2000s retcon); and the most recent one is Millicent Mayne, who somehow acquired a mystical connection with Gotham City at the time of the Cataclysm event (according to a retcon published in 2009, over a decade after we saw the Cataclysm stories released). So in three cases out of four, someone at DC decided to invent a “Veil” character and then pretend that he or she had “already” been active for quite some time before appearing in a story!
MARVEL: Three or four users, all female; one is an Ultraverse assassin. (I say “three or four” because I’ve seen a theory that Marvel’s first user of “Veil,” who was killed by Pyro shortly after she debuted in the early 90s, may be the same as a mysterious “Veil” who briefly appeared during the “Civil War” event.)

Vengeance
DC: A villain who was killed by the vigilante known as “Cupid” as part of an effort to demonstrate her love for Green Arrow (Ollie Queen).
MARVEL: Three users, each of whom started out by clashing with the Ghost Rider of a different timeline. One in 616, one in the Ultimate Universe, and one in the 2099 timeline.

Venom/Venomm
DC: “Venom” was a villain who once fought the first Firestorm.
MARVEL: Several users of “Venom” — the best-known is Eddie Brock when merged with an alien symbiote; he is (or they are) usually a villain, although at the moment I write this, the latest “Venom” was actually Mac Gargan, formerly known as “The Scorpion,” until he had his symbiote forcibly removed. (Eddie is now calling himself “Anti-Venom.”) “Venomm” was Horatio Walters, who fought Black Panther and later switched sides.

Vibro
DC: Golden Age Quality villain who fought Doll Man.
MARVEL: Professor Alton Francis Vibreaux, villain.

Viceroy
DC: Two guys have successively used this alias (according to a few issues of Steven Seagle’s run as a Superman writer, back around 2003). The first was a British superhero who had been killed by the villain Radion long before we ever heard about it. The second user loudly claimed to be the dead hero’s son and successor. One issue after he debuted, the second Viceroy was knocked out by Radion and hasn’t been heard from since. (We readers were alerted, however, that the second Viceroy’s story about being the first one’s son was sheer fabrication, but we never found out what he was really up to.)
MARVEL: Miles Warbeck, villain; father of the Australian mutant heroes Lifeguard and Slipstream.

Viking/Vyking
DC: “Viking” was a member of the Maximums; allegedly of Norse Frost Giant ancestry (in other words, the rough equivalent of Thor of Marvel’s Avengers).
MARVEL: “Vyking” was a member of Strikeforce: Morituri; dead.

Virago
DC: Pre-COIE, this was an Earth-S villainess created by Mr. Mind. More recently, the name was used by a superheroine in Philadelphia who was introduced to us so she could promptly be killed by the assassin known as Onomatopeia.
MARVEL: Two users.

The Visionary
DC: Temporary “Dial H for Hero” alias of Vicki Grant. Also a villain who fought the Birds of Prey; he is part of the Silicon Syndicate.
MARVEL: Member of the “Crazy Eight” group. Also the name used by a parody of The Vision in at least one “What The–?” story. When that latter character was first seen, standing next to his wife (The Scarlet Wench), he had one hand up above his eyes and appeared to be gazing off into the distance, saying dreamily, “Only five years from today . . . only five years from today . . .”

Vixen
DC: Mari Jiwe McCabe, heroine.
MARVEL: At least three users (and that’s not counting the ant whom Ant-Man I apparently named after one of Santa’s reindeer).

Voice/The Voice
DC: At least two users. One was a Golden Age Quality hero. Another was a Golden Age Fawcett villain who fought Captain Marvel.
MARVEL: A few users.

Void/The Void
DC: “Void,” one of the original WildC.A.T.S. in the Wildstorm universe. Before that, there was a “Void” who was a thief, partnered with “Null,” who fought Superman and Batman in the Pre-COIE era, and may not exist in modern continuity.
MARVEL: “The Void” is the arch-enemy of The Sentry (and also seems to be a part of him, or generated by him, or something along those lines).

Volcana
DC: An inhabitant of Kandor in the 1990s who originally hailed from Apokolips.
MARVEL: Marsha Rosenberg, Molecule Man’s girlfriend for awhile in the 1980s.

Voodoo
DC: Priscilla Kitaen, one of the original WildC.A.T.S.
MARVEL: Donny (last name unknown), a mutant member of a group called “the Children of Heaven”; he appeared in a single X-Factor story in the late 80s and hasn’t been heard from since.

“Vortex”/”VOR/TEX”
DC: Two users of “Vortex.” The first fought the Earth-One Supergirl in the early 70s and may have died at the end of the story (but Supergirl failed to find the body). More recently,”Vortex” is a hero who served with the Doom Patrol immediately after its “temporary reboot” by John Byrne.
MARVEL: At least three users of “Vortex.” Furthermore, one Artificial Intelligence has called itself “VOR/TEX” as an acronym for “Virtual Organism/Turing Experiment.”

Vox
DC: Two villains.
MARVEL: Two users; one is a member of the Action Pack; the other is part of the 2099 timeline.

Vulcan/Vulcann
DC: “Vulcan” was a villain who fought the JSA in the 1970s.
MARVEL: “Vulcan” is Gabriel Summers, villain; the recently-revealed long-lost “third Summers brother”; Cyclops and Havok being his siblings. Before we ever heard of Gabriel, the “X-Men 2099″ series showed the titular heroes fighting a villain called “Vulcann.”

Vulture/The Vulture
DC: Quality used this for three Golden Age villains; Fawcett used it for one Golden Age villain; another Golden Age villain fought Archie’s original “The Shield”; DC also used it for a Golden Age villain, and later for a Silver Age villain who fought Batman as one of the Terrible Trio.
MARVEL: Many users; the most notorious is Adrian Toomes, one of the earliest villains to clash with Spider-Man.

Wallflower
DC: Wildstorm character; member of the Paladins.
MARVEL: Laurie Collins, formerly one of the squad called “the New Mutants” at the Xavier Institute; now dead.

Walrus
DC: Moe Blum, a villain who has worked for Black Mask and also with the Wonderland Gang.
MARVEL: Hubert Carpenter, villain.

Wanderer/The Wanderer
DC: In the early 1980s several members of the JLA shrank themselves down to search a subatomic world in which their friend Ray Palmer (The Atom) had somehow gotten himself stuck. While there, they were befriended by a mysterious woman called “Wanderer” who turned out to be Krystal Kaa, the rightful heir to the local throne (a villain had used a mind-controlled Atom — a giant by local standards — to stage a coup against the old dynasty, generations earlier). More recently we met Victoria, a Brazilian villainess who debuted last year; she kills for sport and is sometimes called “the Wanderer.”
MARVEL: Two users (not counting the public domain character “Prester John”).

Warbird/The War Bird
DC: “The War Bird” was Tom Sharp, heroic American aviator in WWII.
MARVEL: “Warbird” is one of several aliases used by Carol Danvers over the years. There is also a “Warbird” in the 2099 timeline.

Warhawk
DC: Rex Stewart, a possible future son of John Stewart (Green Lantern) and Shayera Hol (Hawkgirl) in the DCAU, used this alias as a grown hero in the era of “Batman Beyond” as seen in some episodes of that show and of the JLU; he qualifies for this list because he appeared in one “Batman Beyond” issue set in the same continuity.
MARVEL: Three original characters have used this.

Warhead
DC: Three villainous users. One fought The Peacemaker in his Silver Age Charlton days. One fought the Earth-One Wonder Woman. One appeared in a “Super Friends” comic book and fought the regular heroes of that title, as well as the guest-star Plastic Man.
MARVEL: Five users.

The Warlord
DC: Travis Morgan is often called “The Warlord” when operating in Skartaris (although his real name is no secret there).
MARVEL: Huang Zhu, a villain who only appeared (and died) in the Marvel UK “Super Soldiers” title.

Warp
DC: Villain; often part of the Brotherhood of Evil; supposedly died during “Salvation Run.”
MARVEL: A character in the MC2 timeline; Warp started out as a teleporting thief, but has since joined the Avengers (or “A-Next”) roster of that world.

Warrior
DC: Alias used by Guy Gardner.
MARVEL: Villain; one of the Thanosi.

The Wasp
DC: 1940s villain who once fought the Golden Age Quality hero then known as “Quicksilver” (and now known as “Max Mercury”).
MARVEL: For decades, this was Janet Van Dyne, heroine. More recently, Hank Pym has made this the latest of his many costumed aliases (as a tribute to the currently-dead Janet).

Watchdog
DC: A costumed vigilante in Gateway City who was already dead before we ever heard about him in a flashback.
MARVEL: The crimefighting alias of Normie, The Sentry’s pet dog. When Normie drinks the Super Serum, he gains superpowers and the ability to speak, so I gather he’s sentient at least some of the time.

Weasel/The Weasel
DC: Two users. One was a Golden Ager who fought the Star-Spangled Kid and Stripesy. The other was a villain who fought Firestorm
MARVEL: Several users.

Whirlwind
DC: Villain who apparently got just one appearance and may have died at the end of it.
MARVEL: David Cannon, villain.

Whisper
DC: The military codename or nickname of a convict who was recruited for the WWII-era special unit of the U.S. Army known as “Hunter’s Hellcats.”
MARVEL: A few users; one is an assassin, part of the Foreigner’s death squad, who can transfer memories and abilities into the body of a new host when the old one dies.

The Whistler
DC: At least two. One was Mallory Drake, Golden Age Quality hero. Another was a Golden Age villain who fought Alan Scott (Green Lantern).
MARVEL: An Ultraverse villain.

The White Dragon
DC: The first user was a Chinese tong leader who fought The Whip in the Golden Age. The modern user is William Heller, villain. Also: A Silver Age Blackhawks story revealed that Liu Huang, the guy the other Blackhawks usually called “Chop-Chop,” had been using “The White Dragon” as his costumed alias while resisting the Japanese occupation of his native region of China; he was finally captured by the Japanese, and then abandoned that masked role when he joined the Blackhawks (after they had liberated him).
MARVEL: At least three users.

White King
DC: Codename/title given to high-ranking Checkmate members. Two of the users have been Alan Scott (the Golden Age Green Lantern) and Michael Holt (the modern Mister Terrific).
MARVEL: Codename/title given to high-ranking Hellfire Club members; notable users have included Donald Pierce, Magneto, and Daimon Hellstrom.

White Queen
DC: Codename/title given to high-ranking Checkmate members; Amanda Waller is probably the most famous character to have filled that slot in the hierarchy, but she has since resigned.
MARVEL: Codename/title given to high-ranking Hellfire Club members; the best-known user is probably Emma Frost, the first White Queen to appear in the comics (during the Dark Phoenix Saga).

The White Rabbit
DC: Female arms dealer who fought Steel (John Henry Irons) in his solo title.
MARVEL: Villainess with a Lewis Carroll fixation.

Wild Card/Wildcard
DC: When Hector Hammond organized the second Royal Flush Gang to fight the JLA, he used the alias “Wild Card.” When Amos Fortune organized the fourth Royal Flush Gang, he also dubbed himself “Wild Card.”
MARVEL: “Wildcard” was a member of Strikeforce: Morituri; died.

Wild Dog
DC: Jack Wheeler, hero.
MARVEL: Andy Lyon, a student at the Xavier Institute; may have just appeared in one story?

The Wild Man/Wildman
DC: Two users of “Wildman.” In the first case, it was the military nickname of Harold Shapiro, a member of Sergeant Frank Rock’s legendary Easy Company during WWII. The second user is a villain who fought the Justice League Task Force.
MARVEL: At least one “The Wild Man” and one “Wildman.”

Wild Thing
DC: An Earth Elemental, created partially from the delirious mind of recently deceased ecoterrorist Alan Bolland; eventually destroyed by Swamp Thing.
MARVEL: At least three users. An alias used by a character in DP7 in the New Universe. Later, a “Marvel UK” heroine in a short-lived series in the early 90s. Also: the daughter of Wolverine and Elektra in the alternate future timeline of MC2.

Wildcat
DC: At least four; all heroes. Ted Grant, Golden Age hero, started the tradition and still uses the name sometimes; the latest user is his long-lost son; the other two Wildcats are dead.
MARVEL: Codename or alias used by a guy who was a teammate of Logan’s (Wolverine’s) on “Team X” at some point many years in the past, before Logan got all that adamantium added to his skeleton.

Wildfire
DC: Carol Vance Martin, a Golden Age heroine from Quality Comics. Later: Drake Burroughs, hero, in at least two different versions of “Legion of Super-Heroes” continuity, Pre- and Post-Zero Hour. Also: In an issue of “Teen Titans Go,” set in the timeline of the “Teen Titans” animated series, the younger brother of Starfire and Blackfire is referred to as “Wildfire.” (Note: In the regular DC continuity their brother’s real name is Ryand’r, and he has recently begun calling himself “Darkfire,” but has never used “Wildfire.”)
MARVEL: Harold Paprika, racist villain with a blowtorch.

Wildheart/Wyldheart
DC: “Wyldheart” was a super-powered girl who guest-starred in the “Damage” title in the 1990s.
MARVEL: “Wildheart” was used for awhile by Kyle Gibney, who is better known as “Wild Child.”

Wildside
DC: Villain; member of Team Turmoil.
MARVEL: Villain; member of the Mutant Liberation Front.

Willow
DC: A green-skinned, green-haired woman who appeared in one issue of Steve Englehart’s JLA run in the 70s; her speech patterns and other details made her a thinly disguised version of the “Mantis” character whom Englehart had previously created at Marvel during his Avengers run.
MARVEL: A character in the 2099 timeline.

Wind Rider/Windrider
DC: “Wind Rider” was a temporary “Dial H for Hero” alias of Chris King. On the other hand, “Windrider” was the name of a villain who fought Chris and his friend Vicki Grant during their “Dial H for Hero” days.
MARVEL: “Windrider” was the name of a fictional genie modeled on Storm of the X-Men, as described in a fairy tale which Kitty Pryde once spent an issue of “Uncanny X-Men” telling to Illyana Rasputin.

Windshear
DC: A Milestone character. Also a heroic alias used by Deanna Barr, daughter of the original Bulletman and Bulletgirl, in her operations in Fawcett City. (I am told Deanna also tried calling herself the new “Bulletgirl” at some point.)
MARVEL: Colin Hume, hero; served with Alpha Flight; was depowered on M-Day.

Wing
DC: Sidekick of The Crimson Avenger in the Golden Age.
MARVEL: Two users. One was a ninja member of the Chaste (now dead). One was a mutant named Eddie who studied at the Xavier Institute until his powers were neutralized by Ord; then he apparently committed suicide.

Winter/Wynter
DC: “Winter” is a Wildstorm hero who has served with Stormwatch.
MARVEL: “Wynter” was a robot secretly controlled by Dark Beast. “Winter” was a 2099 character.

Wipeout
DC: Wipeout is a villain; leader of the Run Riot Boys.
MARVEL: Two users. One was a New Universe character. One was a Genoshan who could remove a mutant’s powers; he died.

Wisp/The Wisp
DC: “Wisp” worked with Baron Winters’s Night Force. “The Wisp” is an Irish terrorist who once tangled with Primal Force.
MARVEL: Name used for a parody of Janet Van Dyne (The Wasp) in at least one “What The–?” story.

The Witch/Wytch
DC: “Wytch” was a Milestone character. At least two Golden Age villains used “The Witch.” One was a newspaper publisher and fifth columnist named Wright who once fought the Golden Age Batman. The other was a female foe of the hero known as “The King.”
MARVEL: A few characters have gone by “Witch” or “The Witch” on occasion.

Witchfire
DC: Heroine; partner in the Power Company. (Initially thought she was Rebecca Carstairs, but was actually some sort of mystical duplicate of the “real” Rebecca.)
MARVEL: A member of the Alpha/Beta/Gamma Flight programs in Canada.

The Wizard
DC: At least five villains and two heroes have used this alias. The villainous user with the most staying power seems to have been William I. Zard, who debuted in the Golden Age; he was recently absorbed into Ragman’s rags. On the heroic side there was Blane Whitney, an MLJ hero of the Golden Age; and later this alias was used for a long time by half of Robby Reed after he miscalculated the effects of using an H-Dial to split himself into two people. (“The Wizard” was his good half and “The Master” was his evil half.)
MARVEL: Bentley Whitman, villain.

Wizkid/Wiz Kid
DC: “Wizkid” was a villain; a member of the Silicon Syndicate; he was killed by The Joker.
MARVEL: “Wiz Kid” is Takashi Matsuya, who served with the X-Terminators; he was depowered on M-Day.

Wolf/The Wolf
DC: “Wolf” was Adam Lamb, a Golden Age master criminal in “Batman #2″; died at the end of the story.
MARVEL: Five users.

Wolfen
DC: One of the Maximums (a bunch of knockoffs of Marvel heroes) in their own timeline; seemed to combine aspects of Wolverine and Beast.
MARVEL: A cyborg assassin; he worked for Hydra in the only storyline in which he appeared.

Wonder Man/Wonder-Man
DC: “Wonder-Man” was a superhero in a single Silver Age story; it turned out his personality came from the mind of a Superman Robot (previously nicknamed “Ajax”) after it had been transferred into a similarly strong, but more truly “living,” android body; hence his new face was quite different from Superman’s; sadly, he died at the end of the story.
MARVEL: “Wonder Man” is Simon Williams, hero.

Wrangler
DC: Temporary “Dial H for Hero” identity of Chris King.
MARVEL: An obscure villainess who goes for the cowgirl look, complete with lariat.

The Wrecker
DC: Three villains have used this. One fought The Shining Knight in the Golden Age; one fought the Silver Age Doom Patrol; another fought Batman in the Silver Age. One good guy also used this — “The Wrecker” was a temporary “Dial H for Hero” identity of Jerry Feldon.
MARVEL: Several of them; the most famous was Dirk Garthwaite, leader of the villainous Wrecking Gang.

X
DC: In six consecutive issues of “Military Comics” (#’s 8-13), all cover-dated in 1942, Quality published a feature called “X of the Underground.” The central character was simply called “X” in dialogue. Initially X appeared to be a man who was a master of disguise and did many bold and clever things in occupied territory to make things difficult for the German forces, but a later installment “revealed” that X was actually a woman, supported by an international network (the “Underground” mentioned in the feature’s title) comprised exclusively of other women in Occupied Europe who were extremely unhappy with the Third Reich. (The previous sentence about what was “revealed” assumes you take entirely at face value an off-the-record interview which a woman (allegedly X) gave to a journalist — but what if she lied a little or a lot?) In the feature’s last published story, a woman believed to be X (probably the lady who’d given that interview) was killed by the Gestapo, but on the final page the bodies of two German officers were discovered, along with a mocking note signed “X.” The note suggested that the role of “X” would be kept alive for as long as the war against the Nazis continued. I am told that in the subsequent 58 years neither Quality nor DC has ever offered any follow-up to those Golden Age tales, so even today we still do not know the answers to such basic questions as these: Was the role of “X” actually kept alive until V-E Day? How many people took turns using that alias during the war? What were their real names, nationalities, and so forth? If any user of “X” survived the war, what happened to that person later in life?
MARVEL: At least three users.

Xenon
DC: One of Mr. Element’s henchmen used this alias in a single story.
MARVEL: Presumably one of the Elements of Doom.

Yellowjacket
DC: Reed Victor, former superhero, father of The Patriot, and thus grandfather of Merryman (leader of the Inferior Five)
MARVEL: One of several aliases Hank Pym has used. Later: Rita DeMara, a female Yellowjacket who was a villain and then a hero; now dead.

Yeti
DC: Hu Wei, who served with the Great Ten and was killed by Black Adam.
MARVEL: Marvunapp.com lists many entities who, I gather, have each been called “Yeti” (or perhaps “The Yeti”) somewhere along the line, but I’m not clear on how many of them were simply real live Yeti who were only labeled that way in dialogue spoken by other people. That wouldn’t be the same thng as a character choosing an alias and then habitually introducing himself that way. One user who was not descended from a long line of “Abominable Snowmen” was an Inhuman who served with the First Line for awhile, but later fell in love with a Skrull, fought in support of her people’s first attempted invasion of Earth, and went insane after she died.

Zapper/The Zapper
DC: “The Zapper” is a villain who fought the Silver Age JLA.
MARVEL: Three users.

Zealot
DC: Zannah of Khera, one of the first WildC.A.T.S.
MARVEL: Thomas Moreau, a Genoshan mutate.

Zeta
DC: Member of the Pantheon; a group which fought Superman and Batman in the Earth-One continuity of the early 1980s.
MARVEL: At least two. One was an Inhuman; Black Bolt’s maternal grandmother. The other was one of the Ultra-Robots; long since destroyed.

Zig Zag/Zig-Zag
DC: “Zig Zag” was the military codename or nickname of a convict who was recruited for the WWII-era special unit of the U.S. Army known as “Hunter’s Hellcats.”
MARVEL: “Zig-Zag” is a guy with super-speed who works as a courier.

Zinc
DC: Robot member of the third “Metal Men” team; eventually went rogue and was destroyed.
MARVEL: Presumably one of the Elements of Doom.

Zirconium
DC: One of the second (and evil) team of Metal Men. Destroyed.
MARVEL: One of the Elements of Doom.

Zombie/The Zombie/Xombi
DC: “Zombie” was one of Bane’s henchmen in “Knightfall.” Also: It’s been suggested that the Milestone character “Xombi” probably pronounced his alias exactly the same way as “Zombie,” but wanted to have a more- distinctive spelling; I don’t know for sure if the X was meant to be pronounced as a Z.
MARVEL: “The Zombie” was Simon William Garth, who was “undead” for awhile and is now just plain dead.

Zyklon
DC: Nazi speedster who fought the All-Star Squadron.
MARVEL: Heinrich Himmler’s soul was used to animate a super-powered form so he could serve Satannish as “Zyklon,” a member of the Lethal Legion. This didn’t last long. It is believed that the souls of all members of the Lethal Legion were utterly destroyed during a struggle between Satannish and Mephisto.

Closing Words

If you want to know more about any of the multiple users of a particular name in the Master List, good places to start looking are:

http://www.marvunapp.com/

http://dc.wikia.com

http://marvel.wikia.com

If the character appeared in one of DC’s Silver Age or Bronze Age comic books, in a story set before the shift to Post-COIE continuity, then he may well be listed in one of the indexes at

http://darkmark6.tripod.com/indexintro.html

– although DarkMark doesn’t bother to maintain an alphabetical listing of all the characters mentioned anywhere in his indexes, so you’d have to use Google to search for what you want at that site!

Beyond that, sometimes Wikipedia or other online resources will have useful data (although I believe many of the characters on this list are so obscure that Wikipedia is unlikely to have any pages about them).

And, of course, if you see anything I got wrong, or know of any examples of “shared aliases” which I am still missing, be sure to set me straight! That word “Draft” in the title is my way of acknowledging that anything this ambitious is always a work in progress, since I can’t possibly know and remember everything about every DC or Marvel character who’s ever been published! There’s always more to learn! (It doesn’t help that those companies keep cranking out new stories with new characters in them, and bringing old characters back from the dead, and acquiring the use of other companies’ characters, and so forth!)

I want to thank everyone who, at any time in the last four years, has offered helpful feedback regarding how I could improve this ongoing project. And I especially want to recognize the assistance of the fan known on this website as Lonewolf36, who went above and beyond by posting (in his replies to the Fourth Draft) suggestions regarding Marvel and DC users of over a hundred additional “shared aliases” which he felt should be added to my Fifth Draft. (The vast majority of his suggestions have, in fact, been incorporated into this document!)

Here is the archive of the lists Lorendiac posts here, and here is his latest piece!- BC.

Answer Key for the Pop Quiz

The A’s (these exact aliases were only used by characters now controlled by Marvel) were: 2, 4, 5, 6, 8, 14, 20.

The B’s (these exact aliases were only used by characters now controlled by DC) were: 1, 3, 9, 10, 15, 18, 19.

The C’s (these exact aliases were used on both sides of the fence) were: 7, 11, 12, 13, 16, 17, 21.

I’m not going to explain those answers right here, though. If you skipped down to the bottom to check yourself after taking the Quiz at the top, then please rest assured that if you read through the entire document (or at least search within it for each name from the Quiz), you’ll find the answers to any questions you are likely to have. For instance, if you’re wondering who DC owns or otherwise controls who used to call himself “Spider Man,” I’ve already covered that in the “Spider Man/Spider-Man/Spiderman” listing. (It was quite a shock to me to run across a reference to that old character while I was researching this Fifth Draft! Why didn’t any of my fellow fans ever call him to my attention in the past?)

P.S. If you can prove I was wrong about who has or hasn’t used one of the 21 aliases (with that exact spelling and punctuation) listed in my Pop Quiz, you win two wonderful prizes! First, the right to feel very smug about your knowledge of comic book superhero trivia! Second, a hearty handshake of congratulations if I ever meet you face-to-face in real life! (Generous to a fault, that’s me!)

20 Comments

That’s a huge post!
Congratulations, Lorendiac!

Sweet merciful Jesus, I thought I was a nerd. This takes obsessive compulsiveness to a WHOLE new level. I mean is this guy an asspie or what?

Wow, this list gets better (and crazier) every time around. Nice work.

P.S. There’s a DP7 villian named Pit Bull and one of Tao’s henchmen in the Wildstorm Universe named the same.

What’s your stance on The Dark Avengers? Clearly Sentinel counts, but what about Venom being the “official” Spiderman?

This may fail rule10.

Angel:
Marvel: x-Man.
DC: Partner of Sam Simeon in “Angel and the Ape.”

Great work!

Blackwing was also the name of the X-Men’s depowered Beak when he was on the most recent team of New Warriors.

For Decibel, you’re correct that it was a member of a super-villain group called Heavy Mettle. (He might’ve gotten killed in as a member of the expanded Shadow Initiative’s attack to take back 42.) It was also the name Chamber used while on the New Warriors with Beak and Jubilee.

The Masked Marvel has also referred to Speedball.

You are correct about Silhouette from the New Warriors having no “the” in her name.

The male Sphinx has returned a couple of times since the time you’ve mentioned, but it’s unclear whether the husband and wife have split, or if it’s Sphinx from another point in his life, or maybe even a Sphinx from another reality.

Tempest was also used by the Grant Morrison Angel from New X-Men as her name on the de-powered mutants team of New Warriors.

The Suzy Sherman Ultra Girl’s name was originally written as Ultragirl in her original mini-series. But yeah, it’s been written those other two ways too.

OK, that’s all of the New Warriors-related ones I can comment on.

He said asspie. ha ha. That took some serious commitment to compile an article like that. I don’t know what is scarier, that a comic book fanatic works harder than my insurance adjuster, or that there are enough people interested in this list to make it worth while.

Uhm… you have Heatwave on the Marvel-only list in the answer guide, despite showing a character from both companies named Heatwave. With the DC Heatwave arguably being far more popular and well-known than the Marvel Spaceknight version.

Upon reflection and some Googling, there’s also:

Quirk, the girlfriend of Hulk 2099 and a fifth dimensional imp who may have only appeared in one early Aquaman story to bother Qwsp.

Also, from Marvel’s Shadowline, which I believe has since been retconned into one of the cannonical multiversal earths, there’s Skinwalker, who doubles with a Manhunter villian, and

Dr. Zero, which is also an alias of Mr. Freeze.

Lorendiac – “I am working on the theory that even in the beginning, the “full official aliases” of core members were such things as “Ten of Spades,” “Jack of Spades,” “Queen of Spades,” and so forth, instead of just being Ten, Jack, Queen, King, and Ace”

I was going to disagree with that, but checking the first story indicates that the full names did include the suit, although there is room for confusion over the issue.

Note: In their first appearance the Royal Flush Gang were Clubs, not Spades.

Page 1. Has some headshots of the heroes & villains with the villains individually identified as “The Ace, The King, The Queen, The Jack, The Ten”.

Page 4. The King refers to himself as “The King of Clubs”.

Page 5, Queenie refers to herself as “a Queen of Clubs”.

Page 9. The caption identifies Ten as “Ten-Spot”.

Page 11. Ace refers to himself as “The Ace of Clubs”.

Page 14. The caption refers to the Jack as “Jack of Clubs”.

Dave – “Quirk, the girlfriend of Hulk 2099 and a fifth dimensional imp who may have only appeared in one early Aquaman story to bother Qwsp.”

Quisp was a water sprite from a secret sea under the ocean (at least, according to Aquaman #1) & his brother (from Aquaman #6) was named Quink.

Yep. And he was after a sprite criminal named Quirk in that same story. The confusion is actually a minor plot point. And years later, Quisp/Qwsp was retconned into being from the same dimension as Superman’s common foe.

Astonishingly, there are still plenty of these out there. Some possible examples:

Adjudicator – DC: Silver Age Wonder Woman Villain
Marvel: At least two uses, both alternate realities

Aeon: Wildstorm Character
Ultraverse character

Anthro – The first boy in DC
Marvel: A member of Deathweb

Argos – Wildstorm Villain
Namor’s general (real names)

Aries – Wildstorm Villain
Zodiac member

Artemis – Coda Warrior at Wildstorm
Mutant in the Age of Apocalypse (obviously a borderline case, since it could be considered
a real name in both cases.)

Astaroth – A Beta Ray Bill villain at Marvel
A demon at DC; might have a similar issue as Asmodeus

Badger — Power Girl character
Marvel – Of Croak and Badger, Spectacular Spider-Ham friends
Interestingly, both actual talking badgers

Bandit – Marvel: New Warriors character
DC: The name of the dog in We3. Also borderline because though the dog can talk and has
weapon implants, he seems to have the mind of a regular dog.

Barricade — Green Arrow Villain
Black Panther Villain

Big Thunder — Bulleteer ally
Captain America Villain

Bizmuth/Bismuth
DC: Death-Metal Man
Marvel: Presumably Element of Doom

Black Hole
DC: Doom Patrol villain
She-Hulk Villain

Blackwolf/Blackwulf
Wildstorm Villain
Thunderstrike ally

Blaster/Blastaar (Pronunciation?)
DC: Titans villain
Marvel: Fantastic Four villain

Bloodthirst
Superman Villain
Morbius Villain

Bogeyman
Titans Villain
Power Pack Villain

Bonehead
Speedball Villain
Freedom Fighters Villain

Bookworm
Huntress Villain
Sleepwalker Villain

Boy
One of The Invisibles
X-men villain

Bravo
Astro City character
Spiderman Villain

Brick
Green Arrow Villain
Project Spitfire character

Brick Wall
Huntress Villain
Kickers, Inc member

Bruiser
Spiderman Villain
Superman/Batman Villain

Bug Man/Bugman
X-book mutant
Doom Patrol villain

I’ll reply to a few people before I go offline again.

Carl — my position on your question about the Dark Avengers is very simple: “I don’t know.” I haven’t paid any attention to them. In the last few years, I nearly always “wait for the trade” where any comic book story arc is concerned — and where Marvel is concerned, from Civil War onward, I usually then don’t bother to buy the trade either. (I remember buying “Civil War #1,” reading it, and muttering, “Well, this looks like it’s going to be lame . . .”)

random surfer — I meant to insert a note somewhere regarding my reasons for (currently) not mentioning the old “Angel and the Ape” duo in listings for “Angel” or “Ape.” Evidently I failed to do that before I finally got so tired, Wednesday night, that I e-mailed a file to Brian Cronin and told myself, “That’s it for this year — any further changes and corrections will have to wait another year, thank goodness!”

My basic position was that I don’t see “Angel” as such an unconventional name for a girl living in the USA to have as “Elektra” or “Satana” are; nor did I feel that the name was particularly well-suited to her personality. (I certainly wouldn’t call Angel O’Day “devilish,” but I wouldn’t call her “angelic” either.) These decisions do get awfully arbitrary, as I think I mentioned once or twice in the introductory material of the document.

A. Goodfish — I think you may have skipped over the bit at the very beginning where I warned anyone about to take the Pop Quiz that “Spelling and punctuation are important,” and so forth. As I specify in the “Heat Wave/Heatwave” listing, DC has used “Heat Wave” for the Flash villain whose real name is Mick Rory, and Marvel has used “Heatwave” for a Spaceknight. One character always used a space in the middle and one didn’t, so they weren’t quite using the exact same name. In other words, the Quiz was full of what you might regard as trick questions which required an eagle eye for detail.

KAM — I don’t think I’ve ever read a reprint of the original Royal Flush Gang story. Silver Age JLA, right? I’m much more familiar with them from the 80s onward, after a second RFG had been organized by a mysterious “Wild Card” who turned out to be Hector Hammond. So when I added that rule to this Draft a few days ago, shortly before sending the complete file to Brian Cronin, I must have assumed that the second gang had been duplicating the exact looks of their predecessors — i.e., the suit of spades from a standard deck!

And thanks to everybody who’s offering suggestions for “shared aliases” which may still need to be incorporated into the Sixth Draft! Sometime after New Year’s, I may start double-checking those points and preparing the listings for the Sixth Draft. Fortunately there’s no rush. It was something I did in fits and starts as an occasional hobby all through this past year for the Fifth Draft, and I expect the same will be true whenever I’m in the mood in 2011.

Dave – “And he was after a sprite criminal named Quirk in that same story.”
Reread the story (well, the Showcase Presents reprint) & the sprite criminal is called Quirp, not Quirk.

Lorendiac – “I don’t think I’ve ever read a reprint of the original Royal Flush Gang story. Silver Age JLA, right?”
Yes, Justice League of America #43. They later appeared in issue 54, both stories are reprinted in the third Showcase Presents volume for the JLA.

“I must have assumed that the second gang had been duplicating the exact looks of their predecessors”
I wasn’t sure if you knew or not. Your statement, “For a long time, members of the Royal Flush gang only dressed up to resemble playing cards found within the suit of spades in a standard deck.” is true. I believe the
Spades version made more appearances then the Clubs & over a longer stretch of time. I’d guess the change from Clubs to Spades was probably just artistic, Spades look “cooler” & are easier to draw. ;-)

In your entry for Looter, you mention the spider-Man villain changing his name to Meteor Man. Well DC had one too. In Doom Patrol #103 Prof. Randolph Ormsby got exposed to cosmic rays & was turned into the one-shot menace The Meteor Man.

Here’s an interesting one.
Elasti-girl was a member of the Doom Patrol for DC.
Elasti-girl was a character in the Disney/Pixar film The Incredibles. There have been several comic book versions, albeit by Dark Horse & Boom Studios, not Marvel… yet! However Disney now owns Marvel & it’s probably just a matter of time before Disney-based comics come out with the Marvel logo. Sooooo… do you count it now, or wait until it officially appears in a Marvel comic?

http://www.kryptonian.com/forum/showthread.php?t=9466

I’m done with K now. I’d copy/paste, but it’s kinda long. *hint… read TK!*

Marhawkman — just to let you know, I hadn’t failed to notice your feedback before you posted that “hint.” About a week ago I copied your feedback (as it then stood) from The Kryptonian forums onto a flash drive so I could take it home with me and type out a response at my convenience.

It took longer than it should have to get that feedback posted, but I just finished with that task a couple of minutes ago. (I no longer bother to pay for Internet access for my apartment, so my lengthy online sessions happen irregularly now.)

[...] Lorendiac’s Lists: Character Aliases that Marvel and DC Have BothA) One or more Marvel characters. B) One or more DC characters. C) All of the above. … For many years, I had wondered just how often Marvel and DC swipe colorful character names from each other. … Both DC and Marvel have, in fact, used the name “Andromeda” for female characters. I list those heroines below, [...]

Since Shaft was mentioned, I couldn’t help but wonder if either one was a bad mother shut your mouth. :-)

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idk if this fits your criteria, but Axel Asher aka Access is owned by BOTH marvel and dc.

The next thing that you need to see is the robustness.
There is a long history of people have burned and inhaled the smoke
from hundreds of plants but, as we’ve already discussed, we now know that smoke contains copious carcinogens and noxious substances. He said that when the motor reached around 4,000 rpm, some other effect began to come into play which was detrimental to the system.

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