Many of the hyperlinks on this site are from the Marvel Universe Appendix.


All Winners Squad
Adam II (What If #4; All Winners Squad foe).- evil android created by 
     Professor Horton.
Future Man (All Winners #21; All Winners Squad foe) - comes from dying
     civilization One Million A.D.; determined to exterminate all present
     life so his kind could inherit the Earth.
Isbisa (All Winners #19; All Winners Squad foe) - master criminal.
Madame Death (All Winners #21; All Winners Squad foe) - Future Man's colleague.

The American Avenger
Baron Girbel (USA Comics #5; American Avenger foe) - Nazi propagandist
     stationed in Argentina.
a swamp monster (USA Comics #5; American Avenger foe) - Nazi wearing a
     monster costume.

The Angel
Armless Tiger Man (Marvel Mystery #26; Angel foe) - gnaws victims to death; 
     has no arms so fights with his feet and his teeth; German Luddite, not a Nazi.
Butch (Angel foe) - 20' tall giant; superstrong, bulletproof.
Cat's Paw (Marvel Mystery #21) - vicious murderess dressed in black pantherskin.
the Gargoyle (Angel foe) - use a magnetic beam to bring down planes.
Dr. Hyde (Marvel Mystery #24; Angel foe) - steals eyes from victims and
     ransoms them back for $100,000.
the Fishmen (Angel foe) - aquatic mutants who collect human skin.
the Gobbling Ghost (Marvel Mystery #69; Angel foe)
the Marsh Woman (Angel foe) - accompanied by giant vultures.
Ogre (Angel foe) - sorceror who creates cannibal imps from blood.
Professor Torture (Angel foe).
the Python (Angel foe) - green, slathering contortionist; Nazi spy.
Singa (Marvel Mystery #17; Angel foe) -  Tibetan who mutated himself into a hideous 
     half-animal and half-human form via chemicals.
the Stinger (Marvel Super-heroes Fall Special 1991; Angel foe) - flight, electricity.
Sacred One (Angel foe) - cult leader; hypnosis.
Wolf-That-Walks-Like-a-Man (Marvel Mystery #29; Angel foe) - Native American 
     pretending to be a werewolf

Black Marvel
Grinner (Black Marvel foe) - transformed scientist into strong,
     ghoul-looking crime boss.

Black Widow
Garvey Lang (Mystic #5; Black Widow foe) - crime boss (deceased, as is
     everyone else who crossed the Widow's path).

Blazing Skull
Big Joe (Blazing Skull foe) - giant.

Blonde Phantom
Baron Frankenstein (Blonde Phantom #14) - looks to be the monster.
Carlo the Killer (Blonde Phantom #19) - uses knives, disguises.
the Mad Magicians (Marvel Mystery #84, Blonde Phantom foes) - two
     masters of illusion and crime.
Stillface (Blonde Phantom #16) - thug whose face was shot off and
     rebuilt by a surgeon out of plaster.

The Blue Blade
Sandai (Blue Blade foe) - Japanese spymaster.

The Blue Blaze
Barko (Mystic #2; Blue Blaze foe) - inventor of ice ray guns and super
     explosives.
Dr. Gair (Mystic #3; Blue Blaze foe) - brilliant head of a crime
     syndicate, has as hireling unnamed "sinister gazer of the stars"
     who uses the rays of a particular star to create an enormous,
     super-strong, yellow monster, also uses the star's rays to make
     a killing ray. 
Dr. Vortex (Mystic #4; Blue Blaze foe) - foments war via a "hate ray".
Lor (Mystic #4; Blue Blaze foe) - green-skinned hangman with a
     skull-and-crossbones-laden tunic; works for Dr. Vortex.
Professor Mulaski (Mystic #1; Blue Blaze foe) - bald Asian who reanimated
     zombies to try to take over world from immense underground fortress

Captain America
Agent Axis (Tales of Suspense #82; Captain America foe).
Baron Zemo (Avengers #4; Captain America foe).
the Black Talon (Captain America #9; Captain America/Young Allies foe)
   - murderously insane painter who has an African man's hands grafted 
     onto his wrists.
the Black Toad (Captain America foe) - challenges Cap and Bucky to a 
     baseball game, 1 on 2 (him vs them), to prove German superiority; 
     wears a batlike costume
the Black Witch (Captain America foe).
der Blitzangriff (CA:SoL #1) - electrical powers.
the Butterfly (Captain America foe) - flying armored suit, murders his 
     victims by impaling them.
Captain Okada (Captain America #5; Captain America foe) - mans 'the Dragon
     of Death,' a giant submarine built to look like a dragon.
the Cougher (Captain America foe).
Dr. Eternity (Captain America foe) - fake spiritualist who convinces his
     guests that the spirit world wants them dead.
Dr. Necrosis (Captain America foe).
Electro (Captain America #78) - Communist with lethal electric touch.
the Exiles (Tales of Suspense #41; Captain America foes)
Fang the Warlord (Captain America #6) - "Arch-Fiend of the Orient", 
     reportedly died in the fight at Hiroshima, when the atom bomb 
     went off.
Frankenstein's Monster (USA #13; Captain America foe).
the Hangman (Captain America #6).
the Human Fly (Captain America #60) - suction cups to stick to walls
the Hunchback of Hollywood (Captain America foe).
the Jester (Captain America #65) - mirthful menace in jester outfit.
Ivan the Terrible (Captain America foe) - appears only in a dream of Bucky's.
the Keeper of the Flash (Captain America #40) - assistant lighthouse keeper
     who possesses a meteor fragment which, when exposed to the sun's rays, 
     emits energy beam capable of destroying stone and metal in seconds.
the Laughing Sphinx (Captain America foe).
Lavender (Captain America #66) - female criminal who shoots Bucky II.
the Leopard Woman (Captain America foe).
the Mad Torso (Captain America foe).
the Monster (Captain America #45) - Nazi who undergoes swamp mutation to 
     become strong and bulletproof (albeit not all that mucky).
the Murdering Mummy (Captain America foe).
Phantom of the Planetarium (Marvel Mystery #84; Captain America foe) - prophet?
the Reaper (Captain America #22) - German demogouge.
the Red Skull (Captain America #1).
the Ringmaster (Captain America #5) - "Wheel of Death" which he spins to 
     determine victims.
die SŠuresspritze (CA: SoL #1) - poisonous gas
the Scarab (Republic serial 1943; Captain America foe) - archeologist who 
     uses poison known as the Purple Death to eliminate fellow scientists.
the Seven Sons of Satan (Captain America foes).
the Unholy Legion of Beggars (Captain America foes).
the Wax-Man (Captain America foe) - keeps his victims' heads in a trophy case.
the White Death (Captain America foe) - hooded assassin.
Yellow Claw (Captain America #14) - fanged Asian, no relation.
der Zahnmšrder (CA: SoL #1) - razor-sharp implements in gloves & boots.

Captain Terror
Black Carlo (Captain Terror foe) - Gypsy with magic crystal ball.
Black Claw (Captain Terror foe) - Nazi. Prosthetic iron claw.

The Challenger
the Lizard (Challenger foe) - archer.

Dakor
Followers of Kung (Dakor foes) - Asian cultists
Nordus (Dakor foe) - Indian cult.

The Defender & Rusty
Fog (Defender foe) - spreads manmade fog that makes everyone inside drowsy
     & sluggish; wears gasmask.
Oldow (Defender foe) - strong, big.

Doctor Nemesis/Doctor Death
the Surgeon (Dr. Death foe) - murderer who uses a scalpel and 
    plague-spreading rats

Dominic Fortune
Spencer Keene (Marvel Premiere #56; Dominic Fortune foe) - sleazy
     millionaire with powerful electric hand.

Dynamic Man
Dr. Vee (Mystic #2; Dynamic Man foe) - monocled German spy; leads 
      saboteur ring.
the Hood (Mystic #3; Dynamic Man foe) - super-criminal; powers?
jewelry robbers (Mystic #4; Dynamic Man foes) - work from a zeppelin to 
      rob the Bank of England.
King Bascom (Mystic #1; Dynamic Man foe) - millionaire banker who uses a 
     dynamo to cause a drought.

Electro
Anton Invaders of Korpu (Marvel Mystery #19; Electro foe)
Green Terror (Marvel Mystery #15; Electro foe)  
Onees (Marvel Mystery #14; Electro foe) - subterranean race who seeks to
     destroy life on the surface.

Excello
Kadash (Mystic #2; Excello foe) - chief spy for Germans, plans to set off
     explosives under every major American city.

The Fin
Barracuda (Comedy #9; Fin foe) - Nazi U-boat commander. Has powerful half-sub.

Fiery Mask
the Doctor (Fiery Mask foe) - mad scientist; zombie-ray; superhypnosis;
     giant buzzards.
Dork (Fiery Mask foe) - mad scientist; makes acidic ooze; bio-engineers
     20' tall ape.
Legion of Doom (Fiery Mask foe) - demons from Hell.
Zombie Master (Daring Mystery #1; Fiery Mask foe) - 20' tall scientist
     who hypnotises tramps to commit crimes.

Flexo the Rubber Man
Dr. Murdo (Mystic #1; Flexo foe) - mad scientist who created "death ray machine"
Karl Damos (Mystic #2; Flexo foe) - German spy.
Iron Duke (Mystic #3; Flexo foe) - arsonist.

Flying Flame
Black Ace (Flying Flame foe) - Nazi air ace.

Hercules
Lemo (Mystic #4; Hercules foe) - inventor of mechanical devices;
     underground digging machine & super-tank; earth-shaking bolts;
     electricity weapons.

Human Torch
the Ape (Human Torch #36) - grotesque slumlord with tremendous strength.
Asbestos Lady (Marvel Mystery #83; Human Torch foe) - beautiful gang leader who
     uses asbestos suits and technology; formerly Asbestos Girl (Human Torch #27).
Asbestos Man (Human Torch #7) - no relation.
Blucher (All-Winners #8; Human Torch foe) - uses immense refrigerating coil to 
     freeze the English Channel, intending to invade with a fleet of iceboats and 
     sleds.
Blue Diamond (Human Torch #11) - powers?
the Cobra (Almanaque do O Globo Juvenil #1; Human Torch/Captain Marvel foe) 
     - Nazi saboteur who looks like a cobra; operates underwater.
the Crime King (Human Torch foe).
the Devil's Double (Human Torch foe).
the Devil's Mutineers (Human Torch foes).
Dr. Manyac (Human Torch foe) - mad scientist; inventor of the
     "supercold Green Flame;" has his men wear asbestos suits and coat
     themselves with the Green Flame.
Dr. Smart (Human Torch foe).
the End (Human Torch foe) - Nazi saboteur who looks, according to Jim
     Steranko, like death warmed over and allowed to congeal.
the Hag (Marvel Mystery #?; Human Torch foe) - unattractive female
     crime boss.
Hyena (Human Torch #30) - Nazi saboteur who looks like a hyena.
the Hypnotist (Young Men #27; Human Torch foe).
the Jet (Men's Adventures #27; Human Torch foe) - costumed; powers?
Killers Incorporated (Human Torch foes).
the Laughing Sneak Thief (Human Torch foe).
Martians (Human Torch foes) - advanced science, but no explosives; 
     ambiguous morality (unrelated to Thin Man Martians).
the Masked Fiend (Human Torch foe).
the Masked Horror (Human Torch foe).
Master of Murder (Human Torch foe).
Mr. Grim (Human Torch foe).
the Nazi Vultures (Human Torch foes) - Nazi saboteurs who look like 
     vultures, presumably.
the Parrot (Marvel Mystery #24; Human Torch foe) - Nazi saboteur who looks 
     like a parrot; taunting Joker-type who liked to send the Torch 
     announcements of his upcoming crimes, sometimes using a real parrot.
the Photo Phantom (Human Torch foe).
the Purple Ghost (Human Torch foe).
the Python (Human Torch #8) - Nazi saboteur who looks like a python; long
     fangs, could crush victims like a constrictor; ruthless cold-blooded
     killer.
the Rabbit  (Human Torch foe) - Nazi saboteur who looks like a rabbit.
Rathia (Human Torch #5) - villainess
the Reptile (Human Torch #3) - dons rubber suit which looks like a reptile.
the Sons of Evil (Human Torch foes).
the Terrorist of Time (Human Torch foe).
the Underground Demons (Human Torch foe).
the Un-Human (Human Torch foe).
the Ventriloquist (Human Torch foe).
the Vulture (Young Men #26, Human Torch foe) - wears suit and vulture mask,
     leads international army of criminals of metal monsters, master of 
     'atomic radiation.'
the Walking Corpse (Human Torch foe).
Werewolf (Human Torch #24; Human Torch foe) - a werewolf
the Wolf of Gotham (Human Torch foe).

The Invisible Man (Dr. Gade)
Deadpan Louie (Mystic #3; Invisible Man foe) - grave robber.
Fatty (Mystic #4; Invisible Man foe) - Fatty Arbuckle.
Sporvan (Mystic #2; Invisible man foe) - greedy industrialist

The Invaders
Agent Axis (Invaders Annual #1) - Italian, German, and Japanese spies
     fused together into one being.
Brain Drain (Invaders #1) - Nazi scientist who created Master Man; brain
     in a mechanical body.
Firebrand Squadron (Cap A: SOL #2; Invaders foes) - Human Torch-like androids.
the Face (Invaders #13) - Colonel Eisen, in charge of Warsaw Ghetto; face
     horribly scarred and hidden behind half-mask. 
Iron Cross (Invaders #35) - superpowered armor.
Lady Lotus (Invaders #37) - Japanese agent used hypnotic powders in her
     cigarettes to make others do her bidding.
Master Man (Giant-Size Invaders #1) - Willie Lohmer granted flight, strength, 
     invulnerability; German Superman.
Sky Shark (Invaders V2#2) - Nazi agent who uses dirigible.
Super-Axis  (Invaders foes) - Baron Blood, Lady Lotus, Master Man, 
     U-Man, Warrior Woman.
the Teutonic Knight (Invaders #29) - religious fanatic Franz Gerhardt uses
     high-tech "Flying Death".
Warrior Woman (Invaders #17) - Frau Ratzel, scientist with strength,
     invulnerability; German Wonder Woman.

King of the Royal Mounted
Black Bat (King of the Royal Mounted foe) - deranged doctor who dressed
     himself up in a winged suit.

Leopard Girl
the Flame Witch (Jungle Action #2; Leopard Girl foe) - has fiery hair and 
     a red costume, and shoots reddish flames from her hands.

Mandrake the Magician
Black Wizard (Mandrake #1) - casts illusions.
the Cobra (Mandrake foe) - real name Luciphor; Mandrake's teacher back in 
     Tibet; uses a cloak with a hook, a metal mask, and had his finger-
     prints removed by acid (which left scars in his fingers like a coiled
     cobra).
Crystal Men (King Comics; Mandrake foe) - dominant race of
     otherdimensional Land-of-X; high technology; focus sunlight which
     passes through their bodies into burning rays; use human skin to
     polish their glass bodies.
Bull Ganton (Mandrake foe) - ruler of hidden kingdom of murderers.
Ekardnam (Mandrake foe) - Mandrake's evil equivalent in a literal mirror
     universe (accessed by mirrors) in which you got robbed by the police 
     and a good driver would try to run over pedestrians if he could etc.
Prince Paulo (Mandrake foe) - tyrant of Land of Dementor who makes
     Bizarro-ish dictates. 
the Wasp (Columbia Pictures serial 1939) - crime lord.

Marvex
Dr. Narr (Marvex foe) - mad scientist; robot maker (primitive, though);
     magnetic ray.

Merzah the Mystic
Matsu (Mystic #4; Merzah foe) - Japanese master spy.

The Mighty Destroyer
the Scar (Destroyer foe) - German master scientist; invents death-ray
     which asphyxiates victims; solar ray-focussing heat cannon.
Herr Sin (Destroyer foe) - inventor/scientist. Creates 
     remote-radio-controlled magnetic drone planes w/torpedos.
Von Maus (Destroyer foe) - Nazi master spy dressed like the Shadow.

Miss America
Baron Shinto the Gouger (Miss America #1) - powers?
the Cherub (Miss America #5) - murderous youth with cherubic smile who leaves
     his portrait at the scene of each crime.
King Cobra (Miss America #3) Green-clad thief who attempts to steal bomber
     plans.
The Shocker (Miss America #2) a human electric eel with the ability to store
     electricity and project electrical bolts.

Monstro the Mighty
Little Poison (Comedy #10; Monstro foe) - female spy.

Mr. E 
Vampire (Mr. E foe) - scientist; has heart-exploding gas.

Miss Fury 
Bruno Beitz (Miss Fury foe) - Nazi spy; sword-cane.

Monako
Mr. Muro (Monako foe) - his archenemy; Japanese spy-master.

The Phantom
Singapore Smith (Columbia Pictures 1943; Phantom foe) - smuggler.
the Sky Band (newspaper strip 11/36-4/37; Phantom foes) - band of female
     sky pirates, led by the Baroness, engaged in hijacking small
     aircraft.

Rockman (Underground Secret Agent)
Zombo (Rockman foe) - "Master of Men's Minds;" evil telepath & mental
     dominator; hypnosis; Pacific island; uses magnetic torpedos.

Sgt. Fury
Sir Baskerville (Strange Tales #135; Sgt. Fury foe) - sorceror.
Baron von Strucker (Sgt. Fury #5) - Red Skull's second-in-command.

Silver Scorpion
Beauty Butcher (Comedy #9; Silver Scorpion foe) - evil plastic surgeon (??)

Sub-Mariner
Blackbeard (Sub-Mariner foe).
Byrrah (Young Men #28; Sub-Mariner foe) - Atlantean opponent of Namor's.
Dr. Suki (Sub-Mariner foe).
Dr. Zunbar  (Sub-Mariner foe) - created artifical amphibious being named Elmer.
the Fatalists (Sub-Mariner #38) - powers?
Firebrand (Sub-Mariner foe).
the Flying Dutchman (Sub-Mariner foe).
Iron Brain (Sub-Mariner #30) - prosthetic evil genius.
Jarna (Sub-Mariner foe) - Venusian who commands an army of little men.
man-eating monsters (Sub-Mariner foes) - water-people from another planet who 
     project themselves mentally into the bodies of great white sharks; able
     to transform into human shapes but must return to the ocean and their
     sharklike forms once a day; Ron Byrd refers to them as "the Space-Sharks," 
     but the story gives them no formal name.
Phantom Troubadour (Human Torch #31; Sub-Mariner foe) - leads gang of criminals
     to steal antique violins, possible sonic weaponry.
the Sea Wolf (Sub-Mariner foe).
the Shark (Sub-Mariner #23).
U-Man (Invaders #4; Sub-Mariner foe) - Merrano, an Atlantean outcast.
Waterfront Phantom (Sub-Mariner foe). 

Sun Girl
Bokk the Beast (Sun Girl #3) - giant ape a la King Kong.

Super Rabbit
Super Nazi (Super Rabbit foe) - swinish fascist.

The Terror
Decker (Mystic #6; Terror foe) - Nazi spy; invents/uses shrinking fluid gun.
the Old One (Mystic #9; Terror foe) - runs murder-for-hire organization,
      Poison, Inc.
Mysterious Mister Z (Mystic #10; Terror foe) - owns "Deadly Murder
      Machine".
Potoro (Mystic #7; Terror foe) - ruthless killer; leads gang of looters.

3X's
Green Terror (3X's foe) - invented choking non-lethal green fog, superfast
      car; green-suited followers; African (though golden, with beard);
      blood-drinker; immortal. 

Tough Kid Squad
Dr. Klutch (Tough Kid Squad #1).

Union Jack
Baron Blood (Invaders #7; Union Jack foe) - Lord John Falsworth becomes
     vampire circa WW1 and assists Central Powers.

The Vagabond
the Creeper (Krazy #5) - cloaked and slouch-hatted, fond of skullduggery; in 
     funny-animal universe.

Venus
the Creeping Death (Venus #13) - blob-type monster.
Major John Dark (Venus #13) - creates giant robot to level cities.
Jerome Lenz (Venus #15) - has magic camera that reduces people he 
     photographs into a 2-dimensional form.
Loki (Venus #5) - Norse god.
Neptunia (Venus #18) - vengeful sea goddess, daughter of (the late) Neptune.
Son of Satan (Venus #10) - not Damon Hellstrom.

The Vision
Khor (Marvel Mystery #23; Vision foe) - black sorcerer
Kai-Mak (Vision foe)
Llhupa (Marvel Mystery #14; Vision foe) - female werewolf from "the City of 
     Howling Demons" in Tibet

The Whizzer
Frank Rone (Whizzer foe) - has the Whizzer's speed.

The Witness
the Imp (Mystic #8; Witness foe) - dwarfish gang leader.

Jimmy Woo (F.B.I. agent)
the Yellow Claw (Yellow Claw #1; Jimmy Woo foe).

Misc. Others
Captain Axis
Fu Manchu.
Human Torch II (Suspense #18, 1952) - convicted criminal who, thanks to a 
     magnetic syrum, grows to eight feet tall, gains heightened strength and 
     electrical powers after being shocked in the electric chair; apparently 
     obliterated by a thunderstorm.
Marty Mallen (Marvel Tales I#113) - possesses cloak of invisibility
Skull-Face (Mystery Tales #6) - skeleton of a demon which had been burned at the
     stake, re-animated by scientist, which goes on killing spree.
Sub-Earth Man (Mystic #5) - ruler of underground kingdom; opposed by
     geologist Bob Roland and his fiancee, Carol.