Iron Man/Anthony Edward "Tony" Stark
The Leader of the Super Hero Squad, Tony Stark is known to the public as both an inventor and a hero. He is also the team's Tech Factor having a suit of armor or other device for any situation. These gadgets often don't get tested and sometimes blow up or backfire, but usually come through in the end. Iron Man has also been on dates with several superheroines, including She-Hulk.
- 24-Hour Armor: He is shown to wear his armor even in his PJs. His real face was only ever shown in the very first episode.
- Character Catchphrase: "Alright Squaddies, time to Hero Up!"
- Deadpan Snarker: Demonstrates a sardonic wit every now and then.
- Expressive Mask: His armor's helmet is able to register his facial expressions.
- Fiction 500: As Tony Stark, he is unrealistically opulent.
- Gadgeteer Genius: He creates inventions to help the Squad.
- The Leader: He is the leader of the Super Hero Squad.
- The Knights Who Say "Squee!": He was pretty elated when he had the chance to meet Nick Fury.
- Powered Armor: His powers are from his hi-tech armor.
- The Smart Guy: He's the most intelligent of the group.
Wolverine/James "Logan" Howlett
Former member of the X-Men, Wolverine, is the Squaddies' second-in-command and the team's Animal Factor. With his Healing Factor, adamantium (unbreakable metal) skeleton, and razor-sharp metal claws, Wolverine feels he's the best a what he does, kicking butt. Typically a loner, and a sourpuss, Wolverine is a seasoned warrior and is not above using teamwork to get the job done. To his annoyance, he's forced into being Reptil's mentor and is usually the one who has to keep him, Falcon, and Hulk out of trouble.
- Amusing Injuries: He often gets injured for comedic effect and assures everyone he's fine because of his adamantium skeleton.Wolverine: No problems... adamantium skeleton.
- Big Brother Mentor: He acts as a big brother figure to Reptil
- Cool Old Guy: He qualifies as an awesome old guy due to being very powerful and living a long time without aging thanks to his healing factor.
- Deadpan Snarker: The most sardonic of the Squaddies.
- Determinator: He is not one to give up easily.
- Healing Factor: His power to heal from any injury is rarely ever mentioned in this continuity. It's mostly the adamantium skeleton thing.
- The Lancer: He serves as the team's second-in-command.
- Mutant: He was born with his healing factor.
- Wolverine Claws: Wouldn't be Wolverine without the adamantium claws in his hands.
- Wolverine Publicity: Has a list of all the people he's teamed up with including the Easter Bunny.
The Hulk/Robert Bruce Banner
The unpredictable, nearly uncontrollable Hulk is the Squaddies' Strength Factor. More powerful than a locomotive and able to leap tall buildings in a single bound, the Hulk, well-meaning as he is, is the most childlike and reckless of all the Squaddies and is easily prone to distraction. Despite it all, Hulk likes to smash bad guys and overall is a valuable asset to the Super Hero Squad.
- Adaptational Nice Guy: This friendlier incarnation is a far cry from the "smash and kill everything" Hulk most people are familiar with.
- Big Eater: He has an enormous appetite.
- The Big Guy: Alongside Thor, he's very strong and the member most likely to do the physical work.
- Dumb Muscle: His tremendous strength is inversely proportionate to his intelligence.
- Hulk Speak: Like most incarnations, this version of the Hulk refers to himself in third person and speaks in sentence fragments.
- Manchild: He tends to behave childishly.
- The Nicknamer: Falcon is "Bird", Reptil is "Lobster" due to him turning red when he transforms, etc.
- Too Dumb to Live: His idiocy often causes him to make terrible and life-threatening mistakes.
Thor Odinson
Thor is the thunder god from Asgard and the Squaddies' Elemental Factor. Already super powerful, with his mystic hammer, Mjölnir, Thor can fly and control the wind. While he talks like something out a Shakespeare play, the son of Odin is usually upbeat and enthusiastic, especially a good battle or feast.
- The Big Guy: He's very strong and the only teammate other than the Hulk who tends to handle the physical labor part of missions.
- Boisterous Bruiser: He's quite a strong and good-natured guy.
- Elemental Powers: He can control lightning.
- Flying Brick: He's a hero with super strength who can fly.
- Large Ham: His dialogue is often loud and melodramatic.
- Real Men Wear Pink: He is quite mindful of keeping his fabulous hair looking good.
- Thunder Hammer: His weapon is the enchanted hammer Mjolnir.
- Ye Olde Butcherede Englishe: Like in the comics, he still talks like a character from a fantasy novel.
The Falcon/Sam Wilson and Redwing
The team's Speed Factor, Falcon flies with wings made of "hard light" (a solid hologram). He's upgraded them with Stark-built "feathers" that shoot out as projectiles. Falcon communicates telepathically with birds, particularly his pet falcon Redwing. He can even "see" through their eyes, which comes in handy when the team needs recon. A prankster, showboater, and adrenaline junkie, Falcon loves flying at high speeds but will get serious when the situation calls for it.
- Animal Eye Spy: Falcon can see anything Redwing sees.
- Badass Normal: The only members with no offensive superpowers or power armor.
- Butt-Monkey: Both often get hurt or humiliated for comedy, especially Redwing with many Amusing Injuries.
- Clothes Make the Superman: Falcon gets his powers from his costume.
- Feather Flechettes: The projectiles that come out of Falcon's wings.
- Fragile Speedster: Falcon can move swiftly, but is easily susceptible to injury.
- Kid Hero: Falcon is only 17 in this show.
- Not So Stoic: Redwing was scared shitless of Doctor Strange's stuff in Night In The Sanctorum.
- The Prankster: Falcon likes to pull pranks on the Hulk.
- Psychic Link: They have it with each other.
- Razor Wings: His wings are made of blades.
- Team Pet: Redwing serves as the pet of the Super Hero Squad.
Scarlet Witch/Wanda Maximoff
The Scarlett Witch was raised to be a supervillain by her father, Magneto. She uses probability-altering hexes and can fire them as "hex bolts". Her powers tend not to work the way she wants, sometimes they backfire, other times they work even better than she even expected. After meeting with Falcon and the Squaddies she decided to turn good. Wanda joins them in the second season when Thanos searches for the Infinity Gems. She also takes up the role of the team's Energy Factor, after the Silver Surfer leaves.
- Action Girl: She is a heroine capable of holding her own.
- Ascended Extra: Appeared once in Season 1 ("Hexed, Vexed and Perplexed!"), took over the Silver Surfer's spot on the team in Season 2.
- Heel–Face Turn: She started out as evil, but eventually changed her ways and joined the Super Hero Squad.
- Mutant: She was born with her special powers.
- Reality Warper: She can alter probability to make anything happen.
- Sixth Ranger: Joins the team in the second season.
- The Smurfette Principle: The only female Squaddie in the series.
- Token Good Teammate: Had more of a conscience than Magneto and Quicksilver.
- Winds of Destiny, Change!: Her power over probability can make her alter outcomes as she sees fit.
Reptil/Humberto Lopez
A young Squaddie in training, Reptil can call on the abilities of various dinosaurs in season 1 and (because older fans and paleontologists were crying about the impossibility of some of his abilities) transform into full dinosaurs in season 2 due to the Sunstone around his neck. Placed under Wolverine's training by Captain America, Reptil is being trained to better control his powers and become a great hero.
- Canon Immigrant: He was created for the show, but was introduced in the comics in a spinoff issue of Avengers: The Initiative, which was published several months before the show even premiered.
- Future Badass: His older self in the Bad Future Falcon and H.E.R.B.I.E. end up in in "Days, Nights, and Weekends of Future Past!" has become a very powerful and mighty hero. He's practically a one-man army by then.
- The Immune: He is immune to the craziness of the Fractals because the stone around his neck is a Fractal.
- Kid-Appeal Character: He serves as a younger character that the kids can identify with more.
- Kid Hero: He's only a child.
- Prefers Going Barefoot: He never wears shoes, especially at school.
- Voluntary Shapeshifting: He turns into dinosaurs.
H.E.R.B.I.E.
The Fantastic Four's robot who helped Falcon defend the Baxter Building against the Lethal Legion. H.E.R.B.I.E. is now the pilot of the new, improved Helicarrier. He often finds himself on the wrong end of where the action is. While small, H.E.R.B.I.E. can extend his robotic appendages to great lengths.
- Amusing Injuries: Impossible Man electrocutes him for the hell of it in "Missing: Impossible""I'm not gonna lie, that hurt. A lot."
- Cute Machines: This incarnation of H.E.R.B.I.E. is freaking adorable. Tara Strong using her Timmy Turner voice for the character helps.
- Mission Control: He usually stays behind and keeps contact with the heroes.
- Robot Buddy: A robotic ally to the Super Hero Squad.
- The Smart Guy: Being a robot built by Reed Richards, he's a very intelligent member of the Squad.
- Took a Level in Badass: He becomes more combat-oriented in the second season.
- Verbal Tic: brrt tends to get peppered throughout his speech patterns.
Silver Surfer/Norrin Radd
The Squaddies' former Energy Factor, the Silver Surfer is an alien with control over the power cosmic, including his flying surfboard. He talks in a stereotypical surf culture accent and likes to engage in philosophical discussions. After his former master, Galactus arrives to eat the planet Earth, the Silver Surfer convinces Galactus to leave the Earth in peace, and he would become his herald in return taking the reassembled Infinity Sword with him.
- A God Am I: Considers himself a god after obtaining the Infinity Sword and the Infinity Gauntlet.
- Amplifier Artifact: His surfboard increases the strength of his powers. Later the Infinity Sword and Infinity Gauntlet serve this function when he becomes the Dark Surfer.
- Big Bad: He becomes the main antagonist in the second season.
- Character Catchphrase: "Cosmic"
- Chrome Champion: He's a hero-colored chrome.
- Cloudcuckoolander: He evidently has a questionable grasp of Earth customs, like mistaking a topiary artist for being attacked by giant plant creatures.
- Cosmic Entity: He's powerful enough to affect the entire universe.
- Evil Feels Good: Immediately after possessing the Infinity Sword and Infinity Gauntlet, he decides that he likes being a bad guy.
- Face–Heel Turn: He becomes a villain in season two after being corrupted by the Infinity Sword and the Infinity Gauntlet.
- Fish out of Water: Most of season one had Surfer comically dealing with being unfamiliar with the ways of Earthlings.
- Knight of Cerebus: As the Dark Surfer, he leans the show to a more serious direction.
- Lethal Chef: Every time he tries to cook, his food becomes disgusting slop the other Squaddies don't want to eat.
- Put on a Bus: Left Earth to be Galactus' herald. Replaced by the Scarlet Witch.
- Sky Surfing: His surfboard enables him to fly.
- Surfer Dude: He has the board and the accent.
- With Great Power Comes Great Insanity: It's evident that being corrupted by the Infinity Sword and the Infinity Gauntlet hasn't done his sanity any favors.
Mr. Fantastic/Reed Richards
The leader of the Fantastic Four and an Omnidisciplinary Scientist. Reed has the power to stretch his body in many shapes and sizes. He could be a tad boring when he strings together all the big words he uses. He also has problems being romantic to his wife Sue.
- Absent-Minded Professor: He's a genius, but is often oblivious of the present situation.
- Badass Bookworm: He uses his smarts to fight bad guys.
- Omnidisciplinary Scientist: The show depicts him as being knowledgeable in any field of science required by the episode's plot.
- Rubber Man: He has stretching powers.
- Science Hero: He's a hero who fights crime with scientific methods.
- The Stoic: He has a pretty serious personality.
- Sesquipedalian Loquaciousness: He often uses big words.
Invisible Woman/Sue Storm-Richards
Wife to Mr. Fantastic and sister to the Human Torch. Sue can turn herself invisible and make invisible force fields around her and her allies. She puts her powers to good use when she spies for the mayor.
- Action Girl: She's a hard-fighting heroine.
- Barrier Warrior: She can project force fields.
- Invisibility: Like all incarnations, she can become invisible.
- Mind over Matter: Her invisible force field basically boil down to such, with the handy trait of Invisibility at her discretion.
- Only Sane Woman: She keeps Reed in check.
- Team Mom: She serves as a maternal figure for her team.
The Thing/Ben Grimm
A tough-talking hot-headed hero with Super-Strength and rock skin. He can be irritated by the Squaddies and especially Johnny but generally is nicer than he lets on.
- The Big Guy: Obviously the member of the group who handles feats requiring muscle.
- Character Catchphrase: "It's CLOBBERIN' TIME!"
- Gentle Giant: He's a big guy, but also a nice person.
- Hair-Trigger Temper: He tends to get infuriated at the drop of a hat.
- Jerk with a Heart of Gold: He may be temperamental and grouchy, but he's still out to do the right thing and help people.
- Lightning Bruiser: He is strong and fast at the same time.
- Made of Iron: His stony complexion makes him immune to injury.
- The Rival: He has a rivalry with the Hulk
- Vitriolic Best Buds: As always, he and the Human Torch are friends who like to mess with each other.
The Human Torch/Johnny Storm
Brother to the Invisible Woman, brother-in-law to Mr. Fantastic, and all-around hotdog. Torch can light his body on fire, throw said fire from his hands, and fly. Johnny has a habit of being obnoxious and arrogant, but he's just as heroic as his team.
- Character Catchphrase: "Flame On!"
- Flight: He can fly.
- Flying Firepower: He has fiery powers and flight.
- Fun Personified: He's all about fun and games.
- Kid-Appeal Character: He's the youngest of the Four and tends to be humorous and fun-loving.
- Leeroy Jenkins: He often fails to think before he acts.
- Playing with Fire: He has power over fire.
- Vitriolic Best Buds: With the Thing. Like in other continuities, the two often mess with each other but do care about each other.
- Wreathed in Flames: He can cover his body with flames.
Nick Fury
Nick Fury is a world-famous spy and secret agent and the director of S.H.I.E.L.D.. Idolized by Iron Man, Fury still goes undercover on top-secret missions. One of these missions has Fury becoming the villain Scorpio. With no superpowers, he beat the Squaddies and Stark Industries security bots, gaining Doctor Doom's attention. MODOK and the Abomination found out his identity and he was saved by the Squaddies. Fury later arrives to help the Squaddies fight against Galactus.
- Badass Normal: Has no powers, but is still a useful ally to the Squad.
- Composite Character: His physical appearance is based on the 616 Nick Fury, except he's black like his Ultimate Marvel counterpart. Also between Nick Fury and his brother Jacob "Scorpio" Fury, as the Scorpio alias was used by his brother in the original comics.
- Da Chief: He's a belligerent commander to all S.H.I.E.L.D. agents.
- Eyepatch of Power: He wears an eyepatch.
- The Mole: As Scorpio, he pretends to be a bad guy to infiltrate other villains.
Captain America/Steve Rogers
A hero from an era gone by, "Cap" is S.H.I.E.L.D.'s best agent, both advisor and ally to the the Super Hero Squad. Cap is the most experienced tactician in Super Hero City, and while not the strongest hero, he's at the peak of human potential. Cap's weapon is his indestructible shield which Cap can ricochet off the wall and hit many bad guys at once. He's been present at several major events in the last century and will tell you about them in great detail unless you keep moving.
- All-American Face: He's a hero who stands for everything American.
- Antiquated Linguistics: He speaks in a lot of 40s-era slang.
- Big Good: Is consistently shown as the most important hero in the show.
- Bunny-Ears Lawyer: A wee bit eccentric compared to his mainline Marvel counterpart.
- Captain Geographic: He obviously follows the naming conventions of calling himself the nation he's from and putting "Captain" in front of it.
- Captain Patriotic: He's a patriotic-themed superhero.
- Character Catchphrase: "Hup, Hup, Hup!!"
- Cloud Cuckoolander: Apparently still believes he's in the 1940s at times, such as believing FDR is still president.
- Da Chief: A belligerent commander to the Squaddies along with Ms. Marvel.
- The Good Captain: He's a well-meaning hero addressed as "Captain".
- Luckily, My Shield Will Protect Me: He has a shield as his main weapon.
- Super-Soldier: He was given his powers as part of a project to create super-powered soldiers.
Ms. Marvel/Carol Danvers
Ms. Marvel is the second in command of S.H.I.E.L.D. and is a liaison to and reserve member of the Super Hero Squad. She can absorb and project solar energy, fly, and has super strength. The no-nonsense Ms. Marvel tries to keep the Squaddies' rash actions to a minimum and to not damage the S.H.I.E.L.D. Helicarrier, a giant airship she enjoys piloting.
- Ace Pilot: She masterfully controls the S.H.I.E.L.D. Helicarrier.
- Action Girl: A heroine who's no slouch in the combat department.
- Berserk Button: Damaging
theher Helicarrier is a good way to set her off. - Da Chief: She's a belligerent commander to the Squaddies along with Captain America.
- Energy Absorption: She absorbs energy.
- Flying Brick: She's the standard superhero with strength and flight.
- Leotard of Power: She wears a leotard.
- Ms. Fanservice: She's very attractive and wears a form-fitting costume.
- The Smurfette Principle: The only prominent female ally to the Squaddies in season 1 and some of season 2.
Hawkeye/Clint Barton
Hawkeye is an agent of S.H.I.E.L.D. and an observer to the Super Hero Squad. This sarcastic archer usually keeps the Squaddies in line when Ms. Marvel is not there.
- Badass Normal: He has no powers, but is still a formidable hero.
- Multishot: He often fires multiple arrows at once.
- One-Man Army: He can take down multiple opponents at once.
- The Straight and Arrow Path: An archery-themed hero.
- Trick Arrow: He has different arrows for whatever situation needed.
- *Twang* Hello: Often fires an arrow to make his presence known.
Black Widow/Natasha Romanov (Mystique/Raven Darkholme)
A freelance S.H.I.E.L.D. agent who saved the Squaddies from the Lethal Legion. They take her to the Helicarrier where they all but Hulk and Silver Surfer fall for her. It turns out that it was Mystique impersonating her working for Doctor Doom to steal the fractals.
- Action Girl: She's able to hold her own against anyone.
- Cast as a Mask: Lena Heady voices both Black Widow and Mystique, while Mystique's impersonations of Iron Man, Captain America, Hulk, Falcon, Silver Surfer, and Thor are all voiced by the respective heroes' regular voice actors.
- Evil Brit: Mystique speaks in a British accent when in her real form.
- Honey Trap: She's really Mystique and uses her feminine wiles to manipulate the male Squaddies.
- Badass Normal: Another character who's an awesome hero without any superpowers.
- Distracted by the Sexy: Most of the male Squaddies become enamored by her beauty to the point of not paying attention to anything else.
- Fiery Redhead: Red-haired and temperamental.
- The Mole: She was really a disguised Mystique working for Doctor Doom.
- Sensual Slavs: A sexy Eastern European woman.
- Spy Catsuit: She wears a form-fitting bodysuit.
- Verbal Tic: Often ends her sentences with "Darling"
- Voluntary Shapeshifting: Her true identity is Mystique, who is a shape-shifting mutant.
Songbird/Melissa Gold
A S.H.I.E.L.D. agent with the supersonic shouting power. She was undercover as the villain Screaming Mimi all along, and stopped Dr. Doom and Mystique from stealing the infinity fractals.
- Action Girl: A hard-fighting heroine.
- Deep Cover Agent: She infiltrates the bad guys as Screaming Mimi.
- The Mole: As Screaming Mimi, she pretended to be a villain to stop Mystique.
- Super-Scream: She has a sonic screech capable of blowing away and deafening targets.
The Mayor (of Super Hero City)
The mayor is the well-meaning but bumbling mayor of Super Hero City. He has no superpowers or battle training, but he dresses as a superhero anyway.
- A Day in the Limelight: "Election of Evil!" gives focus on him for a change.
- Canon Foreigner: He was created for the cartoon.
- Cool Old Guy: when Dark Surfer is torturing the Earth, the mayor hijacks an airplane and flies up to talk to Surfer to convince him to put the Earth right. While it doesn't work, he's the only person to actually attempt to fix the crisis. He also saves the day a few other times.
- Civvie Spandex: An odd example, he wears a superhero mask, gloves, boots, and cape with his glasses and a three-piece suit.
- Cloud Cuckoolander: He's not all that focused on his duties and comes off as eccentric.
- Comes Great Responsibility: His general approach to the job is that he has to use his power responsibly, which is why he has no qualms about doing paperwork.
- No Name Given: Some of the other characters, (Iron Man, the Fantastic Four) causally have their real names mentioned. No such luck with the mayor. After briefly losing his job, he is alternately just called "Mr. Citizen" or "The Ex-Mayor."
- Permanent Elected Official: Because no one usually runs against him or wants the job, he's always going to be Mayor for the foreseeable future.
- Reasonable Authority Figure: He trusts the Squaddies and knows they mean well.
- Ultimate Authority Mayor: He's depicted as having authority over everything that real-life mayors wouldn't have.
The Punisher/Frank Castle
A vigilante who hates crime and has an interesting view about crime in Super Hero City. His battle van is loaded with weapons to fight crime, but it smells like dirty laundry.
- Anti-Hero: Hints at Pragmatic Anti Hero. He'll do whatever it takes to stop criminals even if others don't agree with his methods.
- The Cameo: His only appearance in the series is a brief appearance in the episode "Night at the Sanctorum".
- Chest Insignia: The Punisher's iconic skull.
- Dark Is Not Evil: He wears a black costume and has a skull emblem, but is still a good guy, sort of.
- Good Is Not Nice: He fights crime, but isn't very scrupulous.
- Lighter and Softer: When you know how violent the Punisher from the comics can be, this version is certainly more kid-friendly.
- Sidetracked by the Analogy: He does a crime analogy where he describes himself and the other heroes as white blood cells and compares crime to having a side of brussels sprouts with your macaroni and cheese, eventually spiraling into an odd rant on how brussels sprouts irrevocably contaminates mac and cheese.
- Sociopathic Hero: He isn't afraid to seriously hurt (or worse) criminals.
- The Stoic: He isn't very emotional.
- Vigilante Man: He takes the law into his own hands.
- Weaponized Car: His van is equipped with weaponry.
Doctor Strange/Stephen Strange
Doctor Strange is one of the most powerful magicians in all the universe. As the Sorcerer Supreme, he's mastered the secrets of both magical and physical energy.
- Amulet of Concentrated Awesome: Doctor Strange has a few artifacts giving him power that he can't lose, including the Eye of Agamotto, the Orb of Agamotto, and a catalog from JC Whitney.
- Astral Projection: He can mentally manifest as a spiritual form while his body is elsewhere.
- Big Fancy House: His Sanctum Sanctorum is a large and luxurious dwelling.
- Cloudcuckoolander/Funny Schizophrenia: When under the effects of an Infinity Fractal, he tends to act weird and eccentric.
- Combo Platter Powers: Captain America sums it up well.Captain America: His powers include levitation, travel to other dimensions, transformation of matter, Bulgarian Cow Tipping and he's great at Sudoku.
- Enlightenment Superpowers: He gained his powers from going on a spiritual journey.
- Flying Firepower: He can fly and project flame.
- My Significance Sense Is Tingling: He can sense when trouble of a magical nature is brewing.
- Reality Warper: He's a sorcerer, so of course he can manipulate reality.
Captain Marvel
A Kree superhero with cosmic powers, Captain Marvel is the protector of the universe. He is also Ms. Marvel's long-rumored boyfriend.
- Amulet of Concentrated Awesome: His Nega Bands
- Energy Absorption: He can absorb energy.
- Flying Brick: Super strong, can fly, and has energy absorption.
- Heroic Sacrifice: He becomes one with the universe to make Ms. Marvel more powerful to stop the Dark Surfer.
- Human Aliens: He's an alien who looks like a human being.
- Hyper-Awareness: His Cosmic Awareness, which gets annoying when he's finishing other people's sentences. It also has no effect on the Dark Surfer.
- The Good Captain: A hero addressed as "Captain".
- Not Quite Dead: Ms. Marvel makes it clear he's not dead from his Heroic Sacrifice.
Storm/Ororo Munroe
Storm is a resourceful mutant superhero who can control the weather. She is the girlfriend of fellow superhero Black Panther and is a recent graduate of the Xavier School for Gifted Children (she would have graduated sooner but some of her overseas credits didn't transfer).
- Action Girl: A very powerful heroine.
- Elemental Powers: Complete control over the weather, which gives her the ability to whip up lightning, wind, and ice storms in combat, among a plethora of other useful tricks.
- Glowing Eyes of Doom: Her eyes glow white whenever she is using her powers.
- Leotard of Power: She wears a leotard.
- Mutant: Like most X-Men-related characters, she was born with her powers.
- Shock and Awe: Her weather powers enable her to control lightning.
The Wasp/Janet van Dyne
The Wasp is a superhero who can fly and shoot electricity from her stingers. She is also a talented fashionista in Super Hero City.
- Action Girl: Yet another powerful heroine.
- Flight: She can fly.
- Shock and Awe: Her stingers shoot electricity.
- Sizeshifter: She can change her size.
Doctor Doom/Victor von Doom
Dr. Doom is the unquestioned ruler of Villainville and the leader of the Lethal Legion, a massive organization consisting of many dangerous supervillains. With intelligence rivaling Iron Man and Mr. Fantastic, Doom has a specialized suit of power armor among other maniacal inventions. Menacing, extremely dangerous, and humorless, Doom spent season 1 trying to collect the Infinity Fractals, pieces of the Infinity Sword. Once the sword was reformed, it turned out to be a dud without the Infinity Gauntlet. He was finally beaten by the Squaddies and later put in prison. In season 2, he, MODOK, and the Abomination escaped and he now seeks to get both the Infinity Sword and Infinity Gauntlet.
- A God Am I/Godhood Seeker: Tries to achieve godhood by obtaining the Infinity Sword, but doesn't stop him from thinking it.
- Badass Bookworm: His greatest weapon is his intellect.
- Bad Boss: He frequently yells at his underlings and threatens to cause them harm.
- Big Bad: He is the main villain in the first season.
- Big Bad Wannabe: He spends much of his time in the second season desperately trying to reclaim his old position as top villain.
- Butt-Monkey: Doom's plans almost never work out, and end with him being utterly defeated and humiliated by the end of the episode.
- Cool Mask: His trademark metallic mask certainly qualifies as something to write home about.
- Emperor Scientist: He's a Mad Scientist who rules his own country.
- Even Evil Has Standards: While he coveted the Infinity Stones that Thanos had collected, when Thanos (accidentally) destroyed half the galaxy when Doom attacked him to get the gems, Doom was absolutely horrified by the destruction caused.
- Evil Genius: He uses his intelligence for evil.
- In the Hood: He wears a hood.
- Jewish Mother: His mother Cynthia ("Coco") von Doom is constantly nagging and berating him.
- Large Ham: It's to be expected that he'd be hammy since this is Doctor Doom we're talking about. (And one voiced by Charlie Adler, no less.)
- Mad Scientist: He creates devices for evil purposes and is of questionable sanity.
- Take Over the World: His biggest scheme is world domination.
- You Fool!: Frequently addresses people as "fool".
M.O.D.O.K./George Tarleton
MODOK is a small villain with superhuman intellect and psionic abilities. He's also cranky, has a massive ego, and is full of schemes for usurping Doom's power and achieving world domination. Doom is aware that MODOK plots against him, but doesn't seem the least bit worried, which infuriates MODOK. He moves about on a flying hover-chair outfitted with a variety of weapons, which runs on a miniature nuclear reactor and a pair of AA batteries. He has a crush on Ms. Marvel who really doesn't feel the same way about him.
- Butt-Monkey: Things rarely go well for him.
- Cephalothorax: He has the appearance of a head with arms and legs.
- The Dragon: He is Doom's most prominent minion.
- Fun with Acronyms: In this continuity, (at least, according to MODOK himself) the name apparently stands for Mental Organism Designed Only for Kicking Butt!
- Psychic Powers: Of the Frickin' Laser Beams variety.
- Running Gag: The acronym for his name has the "K" constantly replaced with something less flattering, such as when the (briefly) intelligent Hulk mocked him by suggesting he was "Designed Only for Kick-Ball", and when Ms Marvel fell under a love spell, said he was "Designed Only for Kissing."
- Small Name, Big Ego: He thinks he's better than Doom, but he really isn't.
- The Starscream: Occasionally tries to overthrow Doom as leader of the bad guys.
The Abomination/Emil Blonsky
Abomination is huge, mean, and disgusting, with strength approaching the Hulk's and an IQ to match. Usually partnered with MODOK (who considers him a revolting idiot), Abomination is extraordinarily powerful and threatening, but just as easily duped by the Squaddies as by his Lethal Legion bosses.
- The Brute: A villain who handles the jobs requiring muscle.
- Dumb Muscle: He's very strong and dumb as a box of hammers.
- Evil Counterpart: For all intents and purposes, he's an evil version of the Hulk.
- Psychopathic Manchild: Prone to acting childish.
Mole Man/Harvey Elder
A squinty little cave-dweller, Mole Man commands evil technology second only to Doom, as well as an array of subterranean lava monsters from deep within the center of the Earth. He's not very popular among the other members of the Lethal Legion because of his constant farting.
- Butt-Monkey: He is frequently pushed around.
- Gasshole: He's constantly burping and farting. He says it's because of the lower air pressure on the surface.
- Harmless Villain: The heroes seldom have any problem dealing with him.
- Mole Men: He lives underground and rules over a race of humanoids there.
- Sunglasses at Night: Wears shades all the time.
Sabretooth/Victor Creed
A savage mutant, he is Wolverine's Evil Counterpart all the way to having similar powers. Too bad he's not as smart as Wolverine otherwise he may be a threat.
- Arch-Enemy: Wolverine's main enemy.
- Evil Counterpart: He serves as this to Wolverine, being a villain who shares many of his powers.
- Dumb Muscle: He's really strong, but not very bright.
- Healing Factor: He can easily recover from any injury in no time at all.
- Lightning Bruiser: He is a powerful brute who can move swiftly.
- Mutant: As with Wolverine, his powers are because of a genetic mutation.
- Psycho for Hire: He's dangerous, unstable, and willing to do whatever job he's given.
Toad/Mortimer Toynbee
Toad is a mutant with all the abilities of a toad. Him getting struck by lightning is more of a let-down than previously implied.
- Butt-Monkey: Is often subject to misfortune.
- Combo Platter Powers: He can jump very high and has a prehensile tongue.
- In a Single Bound: He can leap great distances.
- Mutant: Another character who has his powers because of a genetic mutation.
- Not-So-Harmless Villain: Briefly manages to hold his own against Iron Man, Wolverine, Thor, and Silver Surfer. They still beat him, but still not half bad for Toad.
- Overly-Long Tongue: Has a very long tongue, befitting his codename.
Paste-Pot-Pete/The Trapster/Pete Petruski
A villain specializing in adhesive-based weaponry. Changed his name to the Trapster after getting mocked for being named Paste-Pot-Pete.
- Abnormal Ammo: He uses glue as a weapon.
- Atrocious Alias: His "Paste-Pot-Pete" moniker
- Berserk Button: Being made fun of for being called "Paste-Pot-Pete" is the best way to get him mad.
- Butt-Monkey: Even to the other villains, he comes off as unfortunate.
- Once Done, Never Forgotten: Naming himself "Paste-Pot-Pete" has led to constant mockery that won't be ending any time soon, much to his dismay.
- Sticky Situation: He uses a super glue gun on his foes.
- Trap Master: He can create any trap needed to capture his foes.
- Verbal Tic: "Squirt, Squirt!"
The Wrecking Crew
A group of villains with enchanted weapons and powers using Asgardian magic. They are called in by Doom when he needs a lot of muscle.
- Crowbar Combatant: Wrecker uses a crowbar, which doubles as a Magic Wand and the group's Transformation Trinket.
- Dirty Coward: Thunderball will flee as soon as the odds are against him.
- Dumb Muscle: Bulldozer and Piledriver stand out as being strong and stupid.
- Epic Flail: Thunderball with his wrecking ball.
- Good Old Fisticuffs: Piledriver uses his massive fists to fight.
- Shoulders of Doom / Use Your Head: Bulldozer fights using his head and shoulders as a battering ram.
Thanos
Thanos is a power-hungry Galactic Conqueror. With the Infinity Gauntlet, he can harness the power of the Infinity Gems in his plans to rule the universe.
- Artifact of Doom: The Infinity Gauntlet is what he searches for to gain ultimate power.
- Beware the Silly Ones: While Thanos is depicted as Laughably Evil and definitely Lighter and Softer compared to his comic book counterpart, he still performs actions that, if not perpetrated in a silly cartoon universe, would be absolutely horrifying if Played Straight in a realistic setting.
- Disc-One Final Boss: Was on track to be the Big Bad of season 2, but the Silver Surfer stole the Infinity Gauntlet and Gems off him and placed him in the Soul Stone.
- Evil Plan: His scheme is to take over the universe
- Galactic Conqueror: He strives to conquer the entire universe.
- Godhood Seeker: He lusts for infinite power.
- Large Ham: He's a very hammy and melodramatic villain.
- Laughably Evil: He's prone to humorous and comedic antics.
- Related Differently in the Adaptation: In the comics, Nebula claims to be his granddaughter, but Thanos disputes this, and both of them are adults when they meet. In this show, however, the two of them are siblings.
- Sibling Rivalry: He doesn't get along well with his sister Nebula.
Galactus
Galactus is a powerful cosmic being with an appetite for planets, and Silver Surfer's former master. When Earth became on his menu after Dr. Doom purposefully summons him, he almost defeats all the heroes of Earth. After the Silver Surfer convinces Galactus that he would become his herald again, he leaves the Earth in peace. When Silver Surfer, changed into the Dark Surfer, he eradicated Galactus.
- Big Eater: Can't get much bigger than feeding on planets.
- Cool Helmet: He wears a neat-looking helmet.
- Cosmic Entity: A powerful being from space.
- Eye Beams: He fires energy beams from his eyes.
- Mighty Glacier: He's not very fast, but still has tremendous power.
- Planet Eater: Like all versions of Galactus, he thrives by eating planets.
Loki Laufeyson
Loki is the trickster god from Asgard who will work with Dr. Doom so he can defeat his brother Thor. Believing, that their father, Odin favored Thor, Loki will use his magic powers to try and defeat his brother, the Squaddies, and the Asgardians, even if he has to turn on Doom to do it.
- Black Magic: He uses dark magic.
- Inferiority Superiority Complex: Believes himself to be better than everyone else to deal with his own insecurities.
- Large Ham: He speaks loudly and dramatically.
- Laughably Evil: He's a very comical take on the character.
- The Starscream: He's a disloyal subordinate to Dr. Doom, MODOK, and many others.
The Red Skull/Johann Schmidt
A diabolical mastermind and Captain America's Arch-Enemy who was frozen during World War II. After being thawed out by Dr. Doom (Don't ask.), the Red Skull, usurped Doom's power and tried to use it to take over the world.
- Card-Carrying Villain: Openly identifies as evil.
- Diabolical Mastermind: A villainous schemer.
- Eviler than Thou: He (essentially) supplants Doom as the leader of Villainville in his episode. Doom doesn't like this.
- Evil Is Hammy: A very hammy villain.
- Evil Laugh: Laughs evilly.
- Gratuitous German: He has a distinct German accent and liberally sprinkles his dialog with his native tongue.
- Harmless Freezing: He was frozen in World War II and survives to be thawed out.
- Human Popsicle: Is frozen until Doctor Doom thaws him out.
- Laughably Evil: This portrayal of him is quite humorous.
- Skull for a Head: He's called the Red Skull for a reason, and that reason is because of his red skeletal face.
- Take Over the World: His plan is world domination.
- Those Wacky Nazis: He's a Nazi.
The Enchantress/Amora
This Asgardian sorceress uses her alluring powers to enslave her foes. She also has the ability to transform people and objects. She has a massive crush on Thor, who remains noble and oblivious.
- Anti-Villain: She isn't so bad when you get past her obsession with making Thor her lover.
- Black Magic: She uses dark magic.
- Dark Magical Girl: A villainess with magic powers.
- Femme Fatale: A very deadly female.
- Stalker with a Crush: She harbors a fixation on Thor
- The Vamp: Uses her seductive ways to her advantage.
- Villainesses Want Heroes: She's a villain in love with the heroic Thor.
- Wicked Stepmother: She once brainwashed Odin into marrying her, thus becoming Thor and Loki's stepmother. It didn't go far since Odin had to abdicate for marrying a "commoner".
- Yandere: She can be very possessive about Thor.
Magneto/Max Eisenhardt/Erik Magnus Lehnsherr
A mutant with the power over magnetism, Magneto is a true villain's villain. The proud father to the Scarlett Witch and the speedy, Quicksilver, Magneto hoped that his children would follow his legacy of villainy.
- Affably Evil: He's very cordial to his kids.
- Card-Carrying Villain: In great contrast to other versions, where he sees himself as more of a Dark Messiah at worst.
- Follow in My Footsteps: Wanted his son and daughter, Quicksilver and Scarlet Witch to take up villainy. Wasn't happy when his daughter became a Squaddie.
- Heel–Face Turn: After the Sentinels take over the World in an Alternate Timeline in "Days, Nights, and Weeks of Future Past!", he becomes a good guy.
- Magnetism Manipulation: Magneto has control over magnetism.
- Mutant: He has magnetic powers because of a genetic mutation.
- Papa Wolf: Don't mess with his kids if you value your life.
Egghead
Egghead is a super-intelligent scientist and one of the Squaddie's more reoccurring threats. While often working for Dr. Doom, he will also use his many inventions to suit his own self-interests.
- Badass Normal: No superpowers other than being exceptionally intelligent.
- Evil Genius: He uses his intellect for evil.
- Evil Laugh: Prone to laughing maniacally.
- Gadgeteer Genius: He creates weapons and machines to use against the heroes.
- Large Ham: He is voiced by Wayne Knight after all. Pretty much everyone he plays is hammy.
- Mad Scientist: A scientist of questionable sanity and morale.
- Pen-Pushing President: Much to his annoyance, he finds out the hard way that being mayor and changing laws means signing a lot of forms. His office is filled with piles of papers.
- President Evil: When he cheated and beat the actual mayor in an election in one episode.
Baron Mordo/Karl Mordo
A pupil of the Ancient One alongside Doctor Strange, Mordo rebelled against his master and left on a quest for power. His magical skill makes him very dangerous, but apparently his psyche isn't entirely stable.
- Card-Carrying Villain: "You cannot stop me, for I am very EVIL!"
- Evil Laugh: Often laughs evilly.
- Evil Sorcerer: He's a villain with magic powers.
- Grand Theft Me: In "Invader from the Dark Dimension", he possesses Iron Man to try and get the Infinity Fractals.
- Large Ham: A lot of his dialogue is hammy and theatrical.
- Sanity Slippage: Appears to become more insane with each appearance.
- Sealed Evil in a Can: Quite literally so. He was imprisoned inside a soda can until being freed by Thor.
