Adversary
DC: A Superman villain who is secretly a young boy.
MARVEL: Native American entity that has faced the X-Men.

Ammo
DC: Villain, a member of the New Order who opposed the JSA. [Justice Society of America #1 (August, 1992)]
MARVEL: A Daredevil villain.

Black Dragon
DC: Kirau Nezumi, 30th century villain and father of the Legionnaire Karate Kid (Val Armorr).
MARVEL: (I) Chiantang, a foe of Black Panther. (II) Lo Shang Cho, a foe of Wolverine. (III) Lin Fong, a foe of Wolverine.

Boggart
DC: Rosemary Fields, British heroine introduced in the Planet DC Annuals, ally of the Batman.
MARVEL: Robin Wise, mutant at Xavier’s Institute, member Rogue’s Advocates squad.

Brainchild/Brain-Child
DC: (Brainchild) Telepath, former member of Point Force, he died after being experimented on by the Dominators. [(Mentioned) Timber Wolf #4 (February, 1993); (seen) Timber Wolf #5 (March, 1993)
MARVEL: (Brainchild) A Savage Land Mutate; (Brain-Child) Arnold Sutton from the Squadron Supreme’s Earth.

Cinder
DC: Carla Moretti, a member of Deathstroke’s Titans for Hire.
MARVEL: Diminutive pyro villain killed in an escape attempt while being transported to the Vault prison. [Cage #9 (December, 1992)]

Crucible
DC: A villain who has faced Robin and the Veteran. [Robin #145 (February, 2006)]
MARVEL: (I) Byron Calley, mutant, member of the Risitants; (II) Fantastic Four villain.

Egg Head/Egghead
DC: (Egg Head) Batman villain, He first appeared on the 1966 TV series. He was mentioned by Riddler as being in continuity in the Secret Origins Special #1 (1989) he appeared in the comic based on the Batman: The Brave and the Bold animated series.
MARVEL: (Egghead) (I) Elihas Starr, Masters of Evil member who opposed the Avengers. (II) A member of the Young Masters.

Ember
DC: Earth Born Angel who appeared in the Supergirl series.
MARVEL: Bastard s of Evil member and supposed son of the mutant Pyro.

Fastback/Fastbak
DC: (Fastback) Timmy Joe Terrapin, a member of Captain Carrot’s Zoo Crew. (Fastbak) New God from New Genesis.
MARVEL: (Fastback) Female mercenary and member of Cannibal Catch who fought Nomad.

Fireball
DC/IMPACT: (DC) Sonya Chuikov, Russian member of the Young Allies. (IMPACT) Josh Hawkins, a member of the Crusaders.
MARVEL: A member of the Seekers who fought Darkhawk.

Firelord
DC: Villain killed to add his powers to the World Beater. [Super Friends #3 (February, 1977)]
MARVEL: Pyreus Kril, former Herald of Galactus.

Fox
DC/IMPACT: (DC) Paul Patten, Jr. Red Circle hero who appears in the backup stories of Shield. (IMPACT) Travis Fox, Native American hero.
MARVEL: (I) Mr. Stanley, old west foe of the Two-Gun Kid. (II) Jasper Whifflegrass, foe of the Sub-Mariner. (III) Reynard Slinker, foe of Spider-Man and the Human Torch.

Frenzy
DC: A member of the Brotherhood of Dada, foe of the Doom Patrol.
MARVEL: Joanna Cargill, a mutant foe of the X-Men.

Furball
DC: Alias of Brin Londo/Timber Wolf during the 5 year later Legion stories.
MARVEL: A member of the Allergen Gang who fought Captain America.

Gizmo
DC: (I) Mikron O’Jeneus, a member of the Fearsome Five (II) Son of the original, a member of the Cyborg Revenge Squad.
MARVEL: Billy Ransom, a member of the Captain Britain Corps from Earth-40121.

Golden Blade/Golden-Blade
DC: (Golden Blade) A member of the Honor Team of Thronn [Green Lantern Vol. 2 #32 (October 1964)]
MARVEL: (Golden-Blade) Zacharaiah Seavey, partner of Sapper [Iron Man Vol. 3 #18 (July, 1999)]

Horse
DC: A member of the Twelve Brothers in Silk.
MARVEL: A member of China Force.

I.Q.
DC: Ira Quimby, A Hawkman villain
MARVEL: Ishmael Questor, member of the Young Allies of Counter Earth.

Imp
DC: Aqualad’s sea horse. [Aquaman #20 (March-April 1965)]
MARVEL: Pandora Destine of ClanDestine.

Impasse
DC: Omega Men character [Omega Men #16 (July, 1984)]
MARVEL: Villain who faced Power Man and Iron Fist.

Maelstrom
DC: Female warrior from Apokolips who faced Superman and Supergirl.
MARVEL: Villain who has faced the Avengers as well as several other Marvel heroes.

Major Victory
DC: (I) Charlie Vickers, a member of the Force of July, (II) A member of Freedom’s Ring.
MARVEL: Alias used by Vance Astro of the Guardians of the Galaxy.

Mister Hyde
DC: Dr. Jelke, a foe of Mister Scarlet and Pinky.
MARVEL: Calvin Zabo, Masters of Evil member.

Mister Justice
DC: licensed Red Circle character who made a brief cameo appearance in the Hangman story in The Web #5 (March, 2010).
MARVEL: Tim Carney, First Line member.

Mister Mind
DC: A foe of Captain Marvel.
MARVEL: A villain who fought Team America.

Monitor
DC: Main character in the Crisis on Infinite Earths limited series.
MARVEL: Young mutant, a member of the Lost Boys.

Monkey
DC: A member of the Twelve Brothers in Silk.
MARVEL: A member of China Force.

Monolith
DC: Supernatural being who has aided the Teen Titans. [Monolith #1 (April, 2004)]
MARVEL: Giant stone extraterrestrial that battled the Avengers and Bloodhawk

Monsoon
DC: A villain who has faced Robin and the Veteran. [Robin #145 (February, 2006)]
MARVEL: Aloba Dastoor, mutant, X-Factor villain

Multiple Man
DC: villain who fought Wonder Woman, Wonder Girl and Wonder Tot. [Wonder Woman #124 (August, 1961)]
MARVEL: Jamie Madrox of X-Factor

Nuclear Man
DC: 2, both clones of Superman from the comic adaptation of Superman IV: The Quest for Peace. [Superman IV Movie Special (1987)]
MARVEL: Dr. Thurgood Vance, a Ghost Rider villain.

Paladin
DC: Anansi created doppelganger of Batman, crossed over to the mainstream reality and helped the JLA to beat the Starbreaker.
MARVEL: Former Hero for Hire who is currently a member of the Thunderbolts.

Pinhead
DC: Arkham Asylum inmate killed by Killer Croc.
MARVEL: (I) Gos Carlton, GA Human Torch villain; (II) Stefan Halpern, GA Miss America villain.

Quill
DC: Metahuman implanted with a Trigon seed by Raven. [New Titans #120 (April, 1995)]
MARVEL: (I) A Warpies member; (II) A resistants member; (III) Max Jordan, a young mutan at the Xavier Institute.

Rabbit
DC: Huang Chao Ran, leader of the Twelve Brothers in Silk.
MARVEL: A member of China Force.

Rat
DC: A member of the Twelve Brothers in Silk.
MARVEL: A member of China Force.

Rockslide
DC: Villain, a member of Doc 30’s Knight Shift. [Legion of Super-Heroes #93 (June, 1997)]
MARVEL: (I) Santo Vaccarro of the Young X-Men; (II) villain slain by the Hand and resurrected who fought Wolverine.

Scorch
DC: A firey villainess who has fought Superman, Martian Manhunter and the Teen Titans.
MARVEL: Tommy Ngh, a Night Thrasher villain; (II) A member of A.R.E.S.; (III) Maj. Ross Jonas, Blackwulf villain.

Shape
DC: Durlan member of Wildfire’s 75th century Legion.
MARVEL: Raleigh Lund, former member of the Institute of Evil and later a Squadron Supreme member.

Simple Simon
DC: A Golden Age Hawkman/Hawkgirl villain.
MARVEL: (I) Simon Briggs, Night Raven character; (II) Recent Spider-Man foe. [Amazing Spider-Man #623 (May, 2010)]

Singularity
DC: A villain of the Reboot/Earth-247 Legion of Super-Heroes.
MARVEL: Bastards of Evil member, supposed son of the villain Graviton.

Skybolt
DC: Zzlrrrzzzm, electrical alien who took the form of Skyman (Sylvester Pemberton) and fought Infinity, Inc. along with Jonni Thunder’s Thunderbolt. [Infinity, Inc. #41 (August, 1987)]
MARVEL: (I) Zack Zimmerman, a member of the Anti-Registration Underground. (II) Vincent Stewart of the New Warriors, depowered mutant formerly know as Redneck.

Spectrum
DC: Villain killed to add his powers to the World Beater. [Super Friends #3 (February, 1977)]
MARVEL: Spider-Man villain who first appeared in the Amazing Spider-Man Digital Exclusive Comic but has since been reprinted in Peter Parker #1 (May, 2010).

Storm
DC: Aquaman’s sea horse. [Aquaman #23 (September-October 1965)]
MARVEL: Ororo Munroe of the X-Men.

Stunner
DC: Cybele Sahin, a villainess of the Web. [The Web #6 (April, 2010)]
MARVEL: Angelina Brancale, A villainess of Spider-Man.

Suicide King
DC: Justin Quinn, operative of the Network, Huntress villain.
MARVEL: (I) A member of the Ratpack 2099; (II) Leader of an Austin Texas-based gang of anomalocos caleed the Renegades. He was an enemy of the hero Vegas from the Amazing Fantasy seriesin 2005.

Tangler
DC: A villain who has faced Robin and the Veteran. [Robin #145 (February, 2006)]
MARVEL/NEW UNIVERSE: Rodney Weigland, a member of the Clinic Group B.

Tracer
DC: (I) Villain, a member of the Extremists from the planet Angor; (II) An android made in the image of the original Tracer who has faced the Justice League.
MARVEL: (I) Richard Bloom, an enemy of Deathlok; (II) Sentient robot that has fought Spider-Man on a couple of occasions.

Umbra
DC: Tasmia Mallor, a member of the Earth-247 Legion of Super-Heroes.
MARVEL: Patrick Nesbitt, mutant at Xavier’s Institute, member Rogue’s Advocates squad.

Viceroy
DC: (I) British hero killed by the villain Radion. (II) Pretended to be the son of the original, put into a coma by Radion. [Superman Vol. 2 #192 (June, 2003)]
MARVEL: Miles Warbeck, Australian crimelord, father of the X-Men’s Lifeguard & Slipstream.

Warhawk
DC: Rex Stewart, a member of the Justice League Unlimited in the Batman Beyond timeline who appeared in the Batman Beyond comic as well.
MARVEL: (I) Alias of the War God Ares. (II) Kree battle robot composed of Adamantine steel (III) Mitchell Tanner, agent of S.H.I.E.L.D. (IV) Tom Nakadai, a member of the Harriers.

Warhead
DC: Rupert C. Hall, enemy of Plastic Man and the Super Friends [Super Friends #36 (September, 1980)]
MARVEL: (I) William Musico, enemy of Super-Patriot; (II) Gregory Slivowitch, a member of Shatterforce; (III) Alias used by Ransak the Reject; (IV) Son of the Radioactive Man, member of the Bastards of Evil.

I currently consider characters originally from Nedor and Centaur to be “off limits” — according to the rules I laid down in 2007 — since the Golden Age Centaur characters were generally acknowledged to already be in the public domain before Malibu ever touched them, and the same applies to the Nedor bunch before Alan Moore ever started dusting them off in some “Tom Strong” issues which I bought as they came out.

I do remember a thread we both participated in — http://www.comicboards.com/php/show.php?msg=dcb-2009062400232000 — in which you suggested that several of the Quality heroes of the 1940s may have fallen into the public domain by now. You also said someone had told you that it used to be (and maybe still is?) common for one publishing company to buy out another’s existing trademarks, but not all the individual copyrights to old material, which baffled me.

Still and all, a few months later, when I was posting this Draft of my list, I decided for the sake of simplicity to stick to the implicit assumption that DC actually has effective control of just about all of the old Quality characters. (They certainly act as if they do.) Whereas they don’t even claim (as far as I know) to own copyrights on any specific characters who are supposed to be the same ones who appeared in Nedor stories in the Golden Age.

Sorry about any duplication of names that you’d already become aware of. As I said at the start, I didn’t read all of the responding posts before I started making my own list.

If you would like to have issue numbers where the ones you hadn’t heard of appeared, please let me know. I can provide that if asked. (I’m working on my own project wherein I compile a complete database for all DCU super-villains, including a complete index of all their appearances, and I have the names on an Excel spreadsheet for reference along with their debut issues. That’s aside from my other current project: a complete database of all English-language comic books ever published.)

But I just mention that in passing — I can also see there’s a lot of characters in your recent post whom I hadn’t heard about before you brought them up! (Or if I ever did hear about them, or even read some of the relevant stories, then the details have long since slipped my mind. If there’s one thing I definitely don’t have, it’s a photographic memory!)

I’ll be double-checking each of your suggested additions, presumably sometime in the next 6 or 7 months, for possible inclusion in my eventual Fifth Draft. As I’ve said before, this project has become an ongoing hobby for me . . . even though my original plan was to compile and post a list of maybe 30 names which DC and Marvel have “duplicated,” and I thought all my fellow fans on certain forums would get a kick out of it, and then I’d be all done with the silly little project! (So I’m an optimist! Who knew comic book creators were so unoriginal when it was time to name their latest creations? )

Something mildly amusing — while many of your suggestions mention things I didn’t know about at all, there are also some of your suggestions that duplicate things I’d already dug up, and certain others “overlap” with stuff I already had in my notes, but your versions of those still contain some new information for me!

For instance — you mention DC-controlled characters who have used “Black Baron” and “Radioactive Man.” In my notes, I already have listings typed out for those names — but the DC-controlled characters who came to my attention in those cases are different characters from the ones you mention! Specifically, those names were used way back when by Golden Age Quality villains whom I found in an online resource at http://blaklion.best.vwh.net/gav_ffs.html — I did not know that DC had also recycled those particular names for more recent character concepts it created in later stories, long after the Golden Age had ended.

So even though I would have put those names on my next Draft anyway, your feedback will help make those particular listings more comprehensive than they otherwise would have been!

One question I’ve been meaning to ask — how would you feel if I ended up quoting some of your proposed listings word-for-word, or very nearly, in my Fifth Draft? I can see you’ve made a real effort to imitate the terse style I usually use for such listings. I do this so that the entire thing won’t get TOO ridiculously long, despite the times when I feel the presssing need to expound on certain details at greater length.

If I verified the details to my own satisfaction and then cut-and-pasted several of your proposed listings word-for-word, without your explicit permission, I’d feel I was plagiarizing. And I hate plagiarism. (Although in any event, I already figured that if most of your suggestions pan out, then you’ll be getting a special thanks from me in the Fifth Draft. I don’t feel the need to thank, by name, everyone who ever contributed any useful ideas in their feedback to one draft or another, but your extensive efforts are looking like a special case! )

P.S. I’m going to post a copy of this reply over on DC’s own forums, in the thread where you replied to my query about Quality’s Ghost Rider, in case you’re likelier to notice it soon over there.

Astro City has an Astra and Mirage

Moon Man was a Timely hero, a villain on the Filmation Batman cartoon and an appearance in World’s Finest.

Terra Obscura gives DC the Nedor heroes including another Wonder Man (and potentially another Wonder Girl), Grim Reaper, the Ghost, Fighting Yank, Doctor Strange (later referred to as Doc Strange). Not seen but also Nedor heroes and thus possible fair game, the Sphinx and the Mask which is funny as he is the comic version of their pulp Black Bat with his look and name changed in comics to avoid conflict with DC’s Batman

Quality Comics had a hero called the Raven as well that crossed over with Phantom Lady some, though never used by DC. Bozo was also referred to as Iron Man

Agent Axis is a special case as in I think the DC and Marvel character are actually the same character! He was referenced in a 1960s Captain America story in Tales of Suspense by Jack Kirby apparently forgetting who he used Agent Axis as a villain for. Which is where the character came from when Roy Thomas was creating villains for the Invaders.

Not sure if you are using the Malibu heroes as Marvel bought that company but not really done anything with them but then again you are including many Quality and Fawcett characters that DC hasn’t really done anything with either and their claim to them are a lot more iffy. But, that would give you access to Centaur characters like Amazing Man, the Clock (who is the same character as the Quality version, just at a different company), the Witch, the Shark

Some additions and corrections to your list:

ACROBAT: There are actually five Acrobats at DC, not just the two you mentioned (the Judomaster foe and the Luck League member). There was also a guy that locked horns with Capt. Marvel Jr. at least six times at Fawcett Comics, beginning with CMJ #41; a one-shot Hawkman foe from FLASH COMICS #89; and a hood that Green Arrow and Speedy dealt with in WORLD’S FINEST COMICS #119.

Also (and not having read all the comments, I don’t know if this has been covered yet) the daughter of the heroic Acro-Bat is Cameron Chase, not Chase Cameron.

AGENT AXIS: Your write up of the DC version is incorrect because it only lists one, whereas there were in fact two. The Boy Commandos nemesis (who appeared four times by my count) was a woman, whereas a male Agent Axis did battle with the Golden Age Wonder Woman in a modern-day story from WORLD’S FINEST #250.

THE ANARCHIST: DC’s version is named Simon Elis, with only one “L” in his name.

ANT-MAN: The DC version appeared in BATMAN #156, but in a Robin solo story…he never faced Batman.

ARSENAL: Actually, four DC users. One was the Doom Patrol villain; another was Nicholas Galtry, who took the first guy’s weapons-suit and tried to kill Gar Logan with it; the third was a clone-slave of the Master from a Dial H For Hero story (and member of the Evil Eight); and then there was Roy Harper.

AURORA: Another of the Master’s clone-slaves from DHFH used this name.

BANSHEE: an enemy of the Golden Age Dr. Mid-Nite also used this name.

THE BAT: There is also a Golden Age Blackhawk villain who used this name.

THE BLACK WIDOW: both the Blackhawks and Plastic Man have fought women using this name.

THE BLACK WITCH: Both Madame Fatal and Doll Man have encountered villains using this name.

THE BLADE: There was also a Golden Age villain of this name who fought the Tarantula.

THE BOWMAN: also a name used by a Blackhawk villain.

THE BRAIN: in addition to the leader of DC’s Brotherhood of Evil, there are also guys by that name who did battle with Mr. Scarlet and Superman.

BUG: there’s a Firestorm villain by that name (brother and partner of Byte); a guy who fought Steel once as a member of Black Ops; and a Spy Smasher villain called the Bug. Another guy named Bugg was a member of a group called the Network that locked horns with Batman once.

BUSHMASTER: two villains by that name at DC as well. One for the Golden Age Green Lantern, one for Wonder Woman.

CADAVER: One of Hardware’s old enemies uses this name as well.

CAIN: also the host of the House of Mystery and a resident of the Dreaming.

THE CAT: Villainous users of this name, aside from Selina Kyle, have been foes of Green Arrow, the first Blue Beetle, and Judomaster.

CAT-MAN: Also the name of another obscure Blackhawk villain.

CENTURION: there is also a Justice League villain by this name.

THE CHAMELEON: Both Superman and the Blackhawks have fought villains using this name.

THE CHEETAH: actually four DC versions, all of them from Wonder Woman.

THE CLOUD: also the name of a Dr. Mid-Nite villain.

THE COBRA: DC has three in their Golden Age line-ups: enemies of Zatara, Manhunter Dan Richards, and the Blackhawks.

THE COIL: Another of the Master’s clone-slaves from DHFH.

THE COLLECTOR: Also the name of a Batman foe from the 1950s.

CRIME-SMASHER: This was actually an alias used by the original Spy Smasher, not a separate character.

THE DAGGER: There were actually two Batman villains by that name, one from the Golden Age (one appearance) and one from modern times (two appearances).

DARKSTAR: there was another of the Master’s clone-slaves who used this alias against DHFH.

DEADEYE: A villain by this name fought the Justice League as a part of the Qwardian Crime Syndicate.

DEATH: in addition to the member of the Endless, there was also a Bulletman villain using this name. In a Justice League issue, Amos Fortune cobbled up a Tarot Gang, one of whom called himself Death.

DR. DEATH: In addition to the Batman foe you mentioned, there are also enemies of Mr. Scarlet, the Golden Age Sandman, and the Blackhawks that use this name.

DR. DESTINY: not only the name of a JLA villain, but also a foe of Bulletman.

DREADNOUGHT: there is an obscure Wonder Woman villain by this name.

THE EEL: in addition to the fairly recent Aquaman villain by this name, other DCU Eels have done battle with the Star Spangled Kid and Stripesy, the Golden Age Flash. the Blackhawks, and the first Blue Beetle.

THE ENFORCER: two more from DC in addition to the Firestorm foes. One fought Batman and Manhunter Paul Kirk in 1974, while the other is a clone of Guy Gardner that is evil.

THE FALCON: Both the original Blue Beetle and the Martian Manhunter have villains by this name.

THE FANG: Also the name of a Superman/Batman villain.

FAST FORWARD: a member of a villain team called the Network that fought Superman and Batman.

THE FIREBUG: two of these have been Batman foes; another recently fought Deadshot, and in the Golden Age. Mr. Scarlet and Pinky did battle with another one.

THE FOG: also the name of a Doom Patrol villain, member of the Brotherhood of Dada.

FROSTBITE: also the name of another one of those Qwardian Crime Syndicate members.

FURY: there was also a villain of this name that clashed with the Pied Piper in a FLASH ANNUAL.

THE GARGOYLE: aside from the Teen Titans villain, other evildoers by this name have plagued Superman, Mr. Scarlet, the Challengers of the Unknown, and Batman at various times.

THE GHOST: not just the name of one of Capt. Atom’s most deadly foes, but also shared by enemies of Zatara, Mr. Scarlet, Minute Man, Superman and Green Arrow.

GRASSHOPPER: Plastic Man has a foe by that name..

HALFLIFE: there is also an enemy of the Blood Syndicate by this name.

HAMMER/THE HAMMER: there are two Blackhawk villains using this name.

THE HANGMAN: a villain who fought Batman and Elongated Man in an old BRAVE & BOLD issue used this name before the DARK VICTORY bloke did so.

THE HARPY: name of a Batman villainess associated with Maxie Zeus.

THE HAWK: Minute Man has a villain by this name.

HOLOCAUST: Also the name of a minor Doom Patrol villain.

THE HOOD: villains using this name have battled Lando Man of Magic; Hawkman; Capt. Marvel Jr. and the first Blue Beetle.

HOTSHOT: villains by this name have confronted Hawkman and Argus at DC.

THE HUNCHBACK: also the name of a Bulletman villain.

THE HUNTRESS: Doll Man also fought a villainess by this name.

THE HYENA: one of these is also in Doll Man’s rogues gallery.

THE ICE MAN: also the name of a Plastic Man villain.

THE JACKAL: Batman has fought two villains using this name, and there’s also a Blackhawk villain using it.

JINX: Another Dial H villain, working with the Master.

THE JOLLY ROGER: Batman has a foe by this name, and so does Capt. Marvel Jr.

JOLT: Superman has a foe by this name.

THE KING: Capt. Triumph fought a villain by this monicker.

THE KINGPIN: not mentioned on your list, but Batman once fought a guy called this.

LEVIATHAN: also the name of a villain introduced during the 52 series.

THE LIZARD: the Golden Age Green Lantern fought a villain by this name.

THE MAGPIE: there is also a pre-Zero Hour Legion of Super-Heroes foe by this name.

THE MANTIS: also the name of a Doll Man foe.

THE MARIONETTE: alien being who once fought King and Grant in the Dial H series.

THE MASK: Oh, there’s WAY more users of this name at DC than you have. The name is used by enemies of Zatara, Wonder Woman, Green Arrow, Mr. Scarlet, Johnny Quick, Blue Beetle II, Doll Man, Plastic Man and Hourman.

THE MATCH: another of the Quality Manhunter’s foes.

MERCURY: also the name of a Johnny Quick villain.

MIDNIGHT: a recent Batman miniseries introduced a new villain by this name.

MR. BIG: both the Golden Age Green Lantern and the modern-day Superboy have fought villains using this alias.

MOLECULE MAN: another Blackhawk villain.

THE MONOCLE: two of these for DC: a Golden Age Flash foe and the better-known Hawkman villain.

THE MONSTER: also the name of a JSA villain.

THE MOTH: Both Miss America (Quality) and Batman have fought villains by this name.

THE MUSE: the new Teen Titans also fought a villain by this name.

NEON: also the name of a modern-day Superboy villain.

NIGHTSHADE: a third character by this name once fought Batman.

OUTLAW: you’re probably thinking the second one (whom you didn’t identity) was the character from John Ostrander’s MANHUNTER series. But there was also one who fought Capt. Marvel Jr.

THE OWL: both the Clock and the Blackhawks fought villains by this name.

THE OX: during her early days with the JLA Detroit, Vixen fought a villain by this name.

PAYBACK: the Darkstars also fought a villain by this name.

THE PHANTOM: Mr. Scarlet, the Blackhawks and Capt. Marvel have all fought villains using this name.

PLASMA: there is also a Wonder Woman villain by this name.

POLTERGEIST: there is also a post-ZH LSH foe by this name.

POWER MAN: a guy by this name once fought the Challengers of the Unknown.

POWERHOUSE: also the name of a Darkstars villain.

PSYCHE: also the name of a LSH villain.

THE PUPPETEER: also the name of a Blackhawk villain.

THE QUEEN OF HEARTS: name has also been used by enemies of Capt. Marvel Jr., Batman and Superman.

THE RAINMAKER: also the name of a Golden Age Superman villain.

THE RAVEN: this name has been used by two Hawkman villains (Golden Age and Silver Age) and by an enemy of Dick (Robin) Grayson.

RICOCHET: there is also a Gunfire villain by this name.

SCAR: a sadistic serial killer who once fought Batman and Robin.

SCATTER: also the name of a Darkstars villain.

THE SHADE: the Golden Age Vigilante also fought a villain by this name.

SHARD: Peter Cannon, Thunderbolt, once fought a villain by this name.

THE SILENCER: also the name of a Capt. Marvel villain.

THE SILHOUETTE: also the name of a Dial H foe.

SIPHON: another villain by this name fought Superman and Batman once.

SLIPSTREAM: also used by another of the Qwardian Crime Syndicate members.

SMOKE: also the name of a Hardware villain.

THE SNIPER: also the name of a Blackhawk villain.

THE SNOWMAN: likewise, the name of a Blackhawk villain.

THE SPARROW: a villain once defeated by the Golden Age Sandman.

SPARX: also the name of a Firestorm villain.

THE SPECTRE: Johnny Quick also fought a villain by this name.

THE SPHINX: the Golden Age Plastic Man also fought a villain by this name; so did Doll Man.

THE SPIDER: in addition to the ones you list, villains by this name did battle with Mr. America, Robotman I, Plastic Man, the Blackhawks, and the Golden Age Green Lantern.

THE SQUID: both Elongated Man and the Dial H teens have fought villains by this name.

STALKER: Supergirl also has a foe by this name.

STINGER: Kobalt also has a villain by this name.

SUNSPOT: Guy Gardner fought a guy by this name in LEGENDS.

THE SWARM: also a Dial H villain.

THE TALON: name of a Golden Age Superman foe.

THE TARANTULA: in addition to the heroes you name for DC, there are these villains: enemies of the Golden Age Sandman (two of them), Superman, and Dr. Mid-Nite.

THE TERROR: aside from the Shazam! villain you mention, I also have enemies of the Creeper and the Clock by this name.

THUNDERBOLT: Mr. America has a foe by this name.

THE TIGER: both Manhunter I (Paul Kirk) and Air Wave I have enemies by this name.

THE TIGER-MAN: another enemy of the first Robotman.

TIGER SHARK: also the name of a Batman villain.

VORTEX: Supergirl has a foe by this name.

THE VULTURE: Doll Man, Spy Smasher and Phantom Lady have all met villains by this name.

THE WEASEL: the Star Spangled Kid also has a foe by this monicker.

THE WHITE DRAGON: an earlier character used this name to confront the Whip.

WINDRIDER: also the name of a Dial H villain.

THE WITCH: the most frequent antagonist of the King.

THE WIZARD: an alias used by enemies of Capt. Marvel Jr., the Blackhawks, Plastic Man and the first Robotman, as well as the JSA.

THE WRECKER: both the Doom Patrol and the Shining Knight have faced villains by this name.

Bazooka
DC: Joseph, mercenary sent after the Teen Titans by the Monitor. (New Teen Titans Annual #2 (1983))
MARVEL/NEW UNIVERSE: Dwight Frye, member of the Black Powers & the Paranormal Platoon.

Behemoth
DC: (I) Leader of the Gargoyles of Notre Dame, Justice League Europe ally. (II) Taro Raiden, member of the Hybrid. (III) Terri, Justice League foe. (IV) Bob Brunner, Legion of Super-Heroes character from the 100th century.
MARVEL: Hulk clone, member of Strike Force One.

Black Baron
DC: Battle for Bludhaven villain.
MARVEL: Rupert Kemp, Captain Britain foe.

Black Box
DC: Laurence Cooper, alternate Earth hero, enemy of Solomon Grundy. (Swamp Thing #155 (June, 1995))
MARVEL: Garabed “Gareb” Bashur, formerly known as Commcast.

Black Halo
DC/WILDSTORM: Quentin Taylor, formerly known as Omni.
MARVEL: (I) Satan/Marduk Kurios. (II) Daimon Hellstrom.

Breakdown
DC/WILDSRORM: Holly Denton, a member of Gen 14 and later Gen 13 before her death. She also used the alias Goo.
MARVEL: A member of the Derangers.

Chill
DC: Leader of the New Rogues, killed by Captain Cold.
MARVEL: (I) Peter B. DeMulder, leader of M.O.N.S.T.E.R. (II) NEW UNIVERSE: Ross Welker, member of the Black Powers.

Conundrum
DC: Connie, Gotham City Sirens villainess who fought the Riddler. (Gotham City Sirens #3 (October, 2009)
MARVEL: A Prodigy/Spider-Man villain.

Cutthroat
DC: Black Canary foe. (Green Arrow/Black Canary #23 (2009))
MARVEL: Daniel “Danny” Leighton, brother of Diamondback, a member of the Skeleton Crew.

Cyborg
DC: Victor Stone, member of the Teen Titans, Titans and the Justice League of America.
MARVEL: A.I.M. Assassin, Captain America foe.

Devastator
DC: Jack Snyder, Justice League International foe, member of the Overmaster’s Cadre.
MARVEL: (I) Kirov Petrovna. (II) Gregori Larionov, both Russian super heroes.

Dragonfire
DC: Chinese operative, partner of Angry Wizard and Barefoot Tiger, Outsiders foe.
MARVEL: Chen Hei-Kwun, Night Raven foe.

Dusk
DC: Alien female who warned Earth’s heroes of the arrival of the Sun-Eater during the Final Night.
MARVEL: (I) Partner of Dawn, member of the Hellbent. (II) Negative Zone native. (III) Negative Zone native. (IV) Alias used by Peter Parker/Spider-Man. (V) Cassie St. Commons, member of the Slingers.

Eagle
DC: World War II O.S.S. agent.
MARVEL: (I) Steed of Matt Slade. (II) Steed of Arrowhead. (III) Lars Dinklebach, Marvel U.K. character, member of S.T.O.R.M.

G-Force
DC: Alien speedster who fell to Earth. (Flash #136 (1998))
MARVEL: Prof. Daniel Jones, Marvel U.K. hero.

Goth
DC: Foe of the Titans.
MARVEL: Leader of the Goth, foe of X-Men.

Hardcore
DC: Powell, first name unknown. Student at Hamilton School who possesses an invulnerability aura. Sent to jail by Guy Gardner. (Detention Comics #1 (October, 1995))
MARVEL: Luke Cage foe.

Host
DC: H’v'ler’ni robot, Superman foe. (Superman Vol. 2 5 (May, 1987))
MARVEL: Mystique foe.

Katana
DC: Tatsu Yamashiro, member of the Outsiders.
MARVEL: Member of the Cyber-Ninjas, foe of Shang-Chi & the X-Men.

King-Size/Kingsize
DC: (King-Size) Hector Prynne, Inferior Five foe.
MARVEL: (Kingsize) Wasp & Dakota North foe, Ricadonna’s Rogues member.

Krag/Crag
DC: (Krag) Pete Crannick, New Blood hero.
MARVEL: (Crag) Member of Alpha Prime.

Man O’War/Manowar
DC: (I) (Man O’War) Captain Atom foe. (II) (Man O’War) Atlantean citizen who was fused with a jellyfish, ally of Vulko.
MARVEL: (Manowar) Thunderbolts foe, Fathom Five member

Man-Fish
DC: Juan Vallambrosa, ally of the Sea Devils.
MARVEL: Captain America foe.

Mister Magic/Mister Magik
DC: (Mister Magic) A member of the New Rogues killed by the Flash’s Rogues. (Mister Magik) Alias used by Dr. Randolph Asquith as a hero during the 40s.
MARVEL: (Mister Magic) A member of the Mayhem Corporation.

Phalanx
DC: Italian metahuman, member of the Cadre of the Immortal, Justice League International foe.
MARVEL: Cord Mather, Punisher ally.

Pulse
DC: Alias of Legionnaire Ayla Ranzz during the 5 yr later stories.
MARVEL: Augustus, mutant, ally of Mystique.

Radioactive Man
DC: Dr. Ivar Malloy, “The Nuclear Super-Hero!” (Tales of the Unexpected #99 (1967))
MARVEL (I) Dr. Chen Lu, Chinese super hero, member of the Titanic Three, Masters of Evil, Thunderbolts & the People’s Defense Force. (II) Igor Stancheck, Black Panther foe.

Rancor
DC: Todd Francis Oszechorski, Joker’s right hand man during Last Laugh.
MARVEL: Guardians of the Galaxy foe, fifth generation Wolverine descendant.

Rapier
DC: Foe of the Maximums, Axis of Evil member.
MARVEL: Dominic Tyrone, Spider-Man foe, killed by the Scourge of the Underworld.

Raptor
DC: Jace Lorens, Nightwing character.
MARVEL: (I) Paul Hazlett, Moon Knight foe. (II) Gary Wilton, Jr., West Coast Avengers ally. (III) Damon Ryder, Spider-Man foe.

Rattler
DC: (I) Plastic Man foe. (II) Seven Soldiers of Victory foe.
MARVEL: (I) Heath Benson, Rawhide Kid foe. (II) Two-Gun Kid foe. (III) Henry Bingham, Spider-Man foe. (IV) Gustav Krueger, Serpent Society member.

Regulator
DC: Barnabas Boulton, Black Lightning & Justice League of America foe.
MARVEL/NEW UNIVERSE: Harlan Hackbarth of the Clinic.

Reverb
DC: Armando Ramone, brother of Vibe, Conglomerate member.
MARVEL: Gene Nation member.

Riot Act
DC: Arkham Asylum escapee, foe of Robin. (Robin #167 (2007))
MARVEL: Marvel: The Lost Generation character.

Shellshock
DC: Member of Hazard’s Black Ops, foe of Steel.
Marvel: Gary Buser, villain killed by the Scourge of the Underworld.

Shrapnel
DC: Mark Scheffer, Doom Patrol villain.
MARVEL: (I) Marvel U.K. villain, member of Tektos. (II) Sentinel Squad One robot. (III) NEW UNIVERSE: Leland Sharp of the Clinic.

Sickle
DC: Tasha, wife and partner of Hammer, former member of the People’s Heroes.
MARVEL: Nickolai Vronsky, partner of Hammer, Maverick foe.

Snake
DC: Villain, partner of Powerhouse, killed by Codename: Assassin. (1st Issue Special #11 (1976))
MARVEL: Member of China Force.

Solarman
DC: Silver Age Superman foe.
MARVEL: Benjamin “Ben” Tucker, Doctor Doom adversary.

Sonik/Sonic
DC: (Sonik) William Parker, Superman/Batman ally.
MARVEL: (Sonic) Daniel Bannion, Iron man foe, member of the Seekers.

Spike
DC: League of Assassins member. (Green Arrow/Black Canary #10 (2008))
MARVEL: Several users of the name.

Steel
DC: (I) Hank Heywood, later Commander Steel, member of the All-Star Squadron. (II) Hank Heywood III, member of the Justice League. (III) John Henry Irons, member of the Justice League. (IV) Natasha Irons, later Starlight & Vaporlock.
MARVEL: Steed of Kid Colt. (Kid Colt #1 (1948))

Thermal
DC: Former Suicide Squad member.
MARVEL: Molly Peterson, member of the Mutant Liberation Front.

Veil
DC: (I) 1940’S villain, foe of Captain Triumph. (II) 1940’S super hero, member of the Seven Shadows, killed by Johnny Sorrow. (III) Millicent Mayne, mystically connected to Gotham City.
MARVEL: (I) Member of Desert Sword, killed by Pyro. ULTRAVERSE (II) Marjorie Fredericks, Ultratech assassin.

Warlord
DC: Travis Morgan, hero of Skartaris.
MARVEL: Huang Zhu, Super Soldiers foe.

Warrior
DC: Former alias of Guy Gardner.
MARVEL: Steed of Rex Hart. (Rex Hart #6 (1949))

Watchdog
DC: Gateway City vigilante. (Detective Comics #758 (2001))
MARVEL: Normie, pet of the Sentry.

Wizkid/Wiz Kid
DC: (Wizkid) Birds of Prey foe, member of the Silicon Syndicate killed by the Joker. (Birds of Prey #121 (2008))
MARVEL: (Wiz Kid) Takashi Matsuya, member of the X-Terminators.

As to Element Lad — frankly, I’ve read nearly nothing of any Legion comics published after the early 1990s (well before the Zero Hour Reboot). A year or two ago — I forget just when — I found a list of members of the Legion in the 1994-2004 interval and went down it, looking for ones I ought to check against lists of Marvel characters. Either I didn’t bother to look up “Alchemist” over on marvunapp.com, or else I looked and nobody by that alias was listed there at the time? I can’t remember now. It was only on this latest draft that I listed some “Alchemists” from both companies. But a little quick research on Wikipedia confirms your statement about his using “Alchemist” in the past, so I’ll be sure to add a mention of that to my Fifth Draft, one of these days!

(It may be a long time, though — I don’t like to post these things too often, or my audience will fall asleep from the repetitiousness of it.)

And, Wasn’t Alchemist also one of the code names for one of the analogues to Element Lad in one of the many Legion reboots?

Mokkari/Makkari, the New Gods villain and the Eternal. I think both names are meant to be pronounced like “mockery”.

Major Domo. An Eternal, and a bad guy from OMAC.

Yeah Brainy was crazy & thought the Legion had agreed to his demand to be made ruler of the universe in exchange for destroying Omega. (Crazy…, bad writing… same difference.)

Jerry Seigel created Matter-Eater Lad & IIRC the original justification for his inclusion in the Legion was that he could eat the bars of any cell the Legion was locked up in.