Adaptational Badass: The Mk 5, which in Iron Man 2 was weaker than the Mk 4, but here plays like the Mk 6 in every respect.
Beta Outfit: The Mk 1 armor, which Tony built in a cave out of bits of missile. Unlike the other armors, it can't shoot lasers and can't fly.
Blade Below the Shoulder: The Mark 33 Silver Centurion armor has a hidden blade in both arms, which can also be used to break cracked walls.
Brought Down to Normal: In the level based on Iron Man 3, when the Mark 42 stops working.
Comedic Underwear Exposure: In the Avengers part, after going through the helicarrier turbine, Tony's armor's legs get taken off.
Energy Weapon: As in Super Heroes, Tony's repulsors can melt and cut shapes out of gold bricks.
Giant Mecha: The Hulkbuster Armor, which gets a beef-up from the big-fig version in Super Heroes to the model-sized version from the Age of Ultron toyline.
Shock and Awe: The Age of Ultron version of Natasha can use her batons to power electrical panels.
Hawkeye / Clinton "Clint" Barton
Adaptational Badass: In Avengers, he gets brainwashed by Loki pretty quickly. Here, due to the game mechanics, he lasts several minutes before Loki uses the Sceptre on him.
Cool Shades: Avengers Hawkeye has a pair of red ones.
Rummage Fail: When left idle, Clint shoots out bananas and steaks. In fact, this is how Nick Fury manages to beat him during "Helicarrier Havok", since Hawkeye keeps doing this.
Stuff Blowing Up: Clint's arrows can blow up silver Lego bricks, and melt gold bricks.
Scarlet Witch / Wanda Maximoff
Badass Longcoat: Her Civil War minifig comes with a leather longcoat.
Squishy Wizard: When fought, she only has one heart for her health bar.
Quicksilver / Pietro Maximoff
Schmuck Bait: Just like his movie counterpart, Pietro tries to catch Mjolnir. Unlike his movie counterpart, Pietro falls for it two more times in the story, and his combo move with Thor has him try to grab it yet again.
Spared by the Adaptation: Probably. Instead of being shot to death by Ultron, Pietro just gets covered in ice-cream and licked by a pig, however, he is inexplicably missing during the Avengers' escape from Sokovia or the introduction of new team members, implying otherwise...
Energy Weapon: He can shoot gold-destroying beams from his head.
Intangible Man: The Vision can use his density control to phase through grates. He'll also use it as a finishing move, often to tear enemies to shreds.
Only the Chosen May Wield: Can wield Mjolnir, but this only comes into play in cutscenes and through team-up moves with Thor. Also, it gives him elegant blond locks.
Deadpan Snarker: Her snarking at Tony and Thor's posturing during Age of Ultron is excised, but replaced with her snarking at Rhodey's failed War Machine story.
It's Personal: Takes Coulson's apparent death during Avengers pretty hard.
Mission Control: Reads out the pre-cutscene briefs, and serves as a temporary replacement for Phil during his "death".
Tempting Fate: At the beginning of Lack of Insight, she comments that no-one would ever use Project: Insight for evil purposes... right?
Phillip "Phil" Coulson
Voiced by: Clark Gregg
Comic Book Death: His death in Avengers is played up, with his still being alive while Cap's not looking.
Mission Control: Serves as one during freeroaming, often commenting on the character's deeds (unless, of course, the player is playing as Phil himself).
Mythology Gag: One of the Collector's quests has him mention a rendezvous with an unidentified "Agent Cheese" to swap Captain America trading cards. Cheese is comics-Coulson's nickname.
Quest Giver: Taking Lola to get some gas, and then taking Lola on a quest for a Hulk selfie.
Weirdness Magnet: Notes he can't even go for a drive without running into trouble.
Agent Williams
Canon Foreigner: He has no counterpart in the films, just being made up so there's a second playable character at certain points.
Chuck Cunningham Syndrome: Vanishes partway through the Avengers levels, having served his purpose. He only reappears briefly as a voice during Age of Ultron.
Meta Guy: He'll frequently comment on things like the game mechanics (such as building a ramp to jump over an obstruction rather than just smashing it).
Quest Giver: Three of them; rounding up blueberriess Stark left lying around the helicarrier, rounding up dangerous artifacts at Project Pegasus, and testing out an old SHIELD testing device.
War Machine / Iron Patriot / James "Rhodey" Rhodes
Handwave: The hammer lifting scene in Age of Ultron has Rhodes wearing the War Machine armor, so when Ultron shows up, the Iron Legion instantly knock him out before he can help.
Palette Swap: Of Iron Man, though Rhodes lacks Tony's ability to use tech panels.
Suspiciously Similar Substitute: His fiery Skull for a Head, Breath Weapon, and ability to throw disembodied Flaming Skulls makes him functionally similar to Ghost Rider from Marvel Super Heroes without the chain, who was neither part of the MCU at the time this game released nor has ever been in the Avengers, so the Avengers-related Blazing Skull acts as a close substitute.
Joke Character: As in the comics, his power is that he is invulnerable... and only that he's invulnerable. Sometimes he'll even trip and fall over himself while running (or waddling, frankly).
Quest Giver: Yet another person looking for Hulk Selfies.
Captain Britain / Brian Braddock
Brits Love Tea: Never travels anywhere without a supply of the stuff, just in case. He dreads the idea of having to switch to coffee.
Inflating Body Gag: One of her moves has her shove her cloud down her opponent's throat, causing them to inflate and float around until they deflate like a balloon and shatter.
Invisibility: By utilizing the light-refracting qualities of clouds, she can render herself imperceptible to enemies and scanners.
Not Quite Flight: While her cloud powers don't grant inherent flight, she can create a cluster of clouds to stand on and manipulate it to soar through the air.
Quest Giver: Asks for help getting people to safety via her clouds.
Solid Clouds: The main aspect her powers involves solidifying clouds into floating platforms, mainly to help herself fly through the air or shoot them at enemies, though when creating them for other people they only last a second before dissipating and needing to reform, necessitating fast jumping between them.
Crimson Dynamo / Dimitri Bukharin
Quest Giver: Asks the player to recover paint from around Sokovia so he can repaint his armor.
Shock and Awe: Uses electricity to zap foes or charge charge points.
It's All About Me: Problems with the husband? Eh, she'll just divorce him and get a new one.
Mythology Gag: Mentions she's on the outs with her husband, but never specifies who that husband is. In the comics, she and Quicksilver had a particularly fraught marriage up until 2007, and she had an arranged marriage with Ronan the Accuser between 2009 and 2011.
Quest Giver: She's yet another person looking for a Hulk Selfie.
Daredevil / Matthew "Matt" Murdock
Pungeon Master: After finishing his quest, he lets loose a "ship" quip. Then he apologizes, explaining he'd been waiting hours to crack it.
Quest Giver: Fighting goons at the Manhattan docks.
Death Locket / Rebecca Ryker
Shock and Awe: Her cybernetic arm can shoot electricity, which she can use to charge electrical devices.
Hulking Out: She morphs from her human form to her gorilla form.
Quest Giver: Asks for help retrieving her human clothing, which has gone missing while her back was turned.
Hazmat / Jennifer Takeda
Energy Weapon: She can use her powers to melt gold bricks.
Hawkeye / Katherine "Kate" Bishop
The Artifact: Her targeting cursor still uses the SHIELD logo, despite Kate not being a member of SHIELD, because it's the same as the one Hawkeye uses.
Cool Shades: She wears purple shades that match the rest of her outfit.
Moveset Clone: Kate has every single ability that Hawkeye does, no more and no less.
Leaning on the Fourth Wall: Indirectly mentions he's the original Human Torch, but clams up immediately afterward, due to the embargo on Fantastic Four characters.
Quest Giver: Asks for help fighting off some thugs... whom he released from SHIELD prisons.
Sanity Slippage: Has gone a little senile in old age, such as starting fires around Washington due to a misunderstanding of the phrase "fighting fire with fire".
Iron Fist / Daniel "Danny" Rand
Quest Giver: He's hunting Shao-Lao through the streets of New York's Chinatown.
Super-Strength: The Iron Fist allows him to destroy cracked walls.
Adaptation Personality Change: Despite being visually based on her time in Guardians of the Galaxy (the 2008-2010 series), she's much more together, and doesn't call herself "this one".
All Animals Are Dogs: Devil Dinosaur's general attitude is less one of a T-Rex and more one of a trained and loyal pet dog, including faithfully following Moon Boy's orders, sitting down while wagging his tail and panting, and picking up a large bone in his mouth to chew on while rolling over on the ground.
Impossibly Graceful Giant: While speed-wise Devil Dinosaur is the Mighty Glacier you'd expect of a large dinosaur, unlike a normal large dinosaur he can jump and do a crushing front-flip with levels of grace you'd never expect by looking at him.
Mighty Glacier: Devil Dinosaur is exactly as slow and ponderous as you'd expect a theropod to be, but he's also exactly as strong and tough as one too.
Quest Giver: Moon Boy asks for help protecting Devil Dinosaur from some SHIELD agents who want to perform DNA tests on him.
Super-Scream: Being based on a T-Rex, which has one of the loudest roars known among dinosuars, Devil Dinosaur can let out a loud bellow that'll destroy all nearby objects and stun enemies.
Unskilled, but Strong: Devil Dinosaur is severely lacking in puzzle-solving abilities due to being, well, a tiny-armed T-Rex, but what he lacks in skill he makes up for with being a tough and strong fighter.
You No Take Candle: Moon Boy speaks mostly in broken sentences to represent him being a wild man that rarely interacts with human society.
I Have Many Names: Ms. Marvel, Warbird and Captain Marvel. The game leaves out Binary.
Legacy Character: She took the title of Captain Marvel from the kree soldier-turned-hero Captain Mar-Vell (who appears in the opening of her DLC mission, but isn't identified).
Fangirl: So much so she went all the way from New Jersey to South Africa just to see a site where the Avengers had fought Ultron (with the implication she didn't tell her family beforehand).
Idle Animation: If left idle, she'll use her powers to play jump-rope with her own arms.
Not Quite Flight: Kamala can glide, by stretching herself into a kite shape while jumping.
Phoneaholic Teenager: One of her idle animations is her tripping over herself to grab her phone.
Quest Giver: Including dealing with alligators sent by her enemy, the Inventor, and getting a Hulk Selfie.
Rubber Man: One of her powers allows her to stretch her limbs like this.
Sizeshifter: Kamala's powers allow her to embiggen herself to giant size, or shrink down to tiddly size.
Energy Weapon: Uses the Nova Force to melt gold bricks (in the interests of pedantry, this is despite the Nova Force being gravimetric power, not heat).
Flying Brick: Being as he is the Human Rocket (though he lacks invulnerability).
Quest Giver: Tasks the player with finding new recruits for the Valkyrior after several of their ranks were lured away by the strange realm known as "Lon-don".
Here We Go Again!: Just narrowly averts it, when he wonders what enemy would show up if he put on Patriot's old costume. Hulkling informs him it'd be a Hulkling-like enemy. Billy takes the hint.
Inept Mage: He's incredibly powerful, but if he doesn't pronounce things exactly right, thinks go wrong. Though it does raise the question of just how badly he mispronounced "pack of cards" to wind up with "Jack of Hearts".
Quest Giver: Asks for help getting rid of some Dark Elves he inadvertently annoyed by putting on his old Asgardian costume.
Super-Strength: Capable of destroying cracked walls and lift bricks with green handles.
Loki Laufeyson
An Ice Person: Playable Loki can use the Casket of Ancient Winters to freeze things, and people.
…But He Sounds Handsome: His narration while he impersonates Odin is filled with compliments toward himself, while insulting Thor with every other breath.
Sharp-Dressed Man: One of the unlockable Lokis is his suit from the Germany scene in Avengers.
Villains Out Shopping: During the Dark World level, Loki is calmly sitting in his cell, knitting a scarf, as all Hell breaks out elsewhere. Fandral remarks on this.
Ungrateful Bastard: Despite the arm-slicing not being a part, Klaue still tells his henchmen to attack Ultron along with the Avengers, even though Ultron just made him rich.
Why Did It Have to Be Snakes?: He's really afraid of cuttlefish, and gives the player character the task of clearing a nearby bay of them.
Ultron
Adaptation Personality Change: Some of his Ax-Crazy tendencies are toned down (he no longer slices off Klaue's arm), and his messianic actions get downplayed.
Adaptational Wimp: In the movie, his final body is made of vibranium, and takes Wanda tearing his power core out to put an end to him. Here, it's destroyed by Hulk flinging it out of the quinjet.
Enemy Summoner: Playable Ultron can summon two Ultron Drones to assist.
Pulling Themselves Together: If Ultron is smashed during the brawl in "There Are No Strings On Me", he'll start to reform himself by pulling himself back together.
Regenerating Health: The playable Ultrons have health which immediately restores itself on being injured.
Adapted Out: Lack of Insight has no mention of his involvement in The Winter Soldier, beyond his experimenting on Bucky.
Composite Character: The level based on Captain America: The First Avenger uses his MCU appearance, but in a side-quest he shows up in his comic version's robot body.
Doomy Dooms of Doom: Insists that turning on the fans in his secret HYDRA base will leader to the player's DOOM. Comfortable, air-conditioned DOOM, but DOOM nonetheless.
Just Testing You: After the player inevitably thwarts his scheme, he claims it was actually just a test to see how they'd respond to an actual doomsday scenario.
Smug Snake: Taunts the player that they cannot stop him from launching his missile. He also does nothing to stop them from stopping him.
More Dakka: Instead of Tony's laser beam weapons, his armor is equipped with a gattling gun.
Powered Armor: A bigger, bulkier knock-off version of Tony's.
Justin Hammer
Cloudcuckoolander: Justin's a little nuts. His only takeaway from watching the disastrous press conference he caused, wherein drones went on a rampage and shot up the Stark Expo? That's he's a good dancer. Yeah...
Giant Space Flea from Nowhere: He is found and fought at Project Pegasus, with no explanation for who he is or why he's doing what he's doing.
Intangible Man: He can phase through grates and dig tunnels.
You Don't Look Like You: In the comics Korvac was pinkish-purple as an Energy Being, while here he's orange. The villain X-ray is also a pinkish-purple energy being, so one of them needed to get a color-swap, and Korvac ended up chosen for that.
Your Princess Is in Another Castle!: Acquiring his token initially seems like just another puzzle... then Laufey runs in and steals it, requiring the player to beat him up.
The Leader / Samuel "Sam" Sterns
Demoted to Extra: From a mini-boss in Super-Heroes to an unlockable extra.
Mind over Matter: She can use telekinetically effected objects using her magic.
M.O.D.O.K. / George Tarleton
Fun with Acronyms: Mental Organism Designed Only For Killing. While acting under his Paper-Thin Disguise he claims the last word now means "kleaning", before realising the spelling issue there.
Hoist by His Own Petard: He infiltrates SHIELD as a lowly janitor as part of a scheme to take it over from the inside, then after looking up online that the current way to enhance popularity is a Hulk selfie, he decides to take one and upload it to the SHIELD network. It's only afterwards he remembers the fact that lower-Level SHIELD agents don't have internet privileges, nipping his takeover plan in the bud.
Paper-Thin Disguise: His attempted infiltration of SHIELD makes no attempt to disguise himself.
Quest Giver: Sends the player to hunt down some stray Chitauri troops.
Spared by the Adaptation: Is still alive, where his film counterpart got his neck snapped by Ronan.
Ragnarok
Paper-Thin Disguise: Apparently he's been trying to pass himself off as Thor. But the fact he's based on Thor's comic look, rather than the film version, makes him a dead giveaway. Well, that, and the other tropes.
Red Eyes, Take Warning: The glowing red eyes are kind of a giveaway that he's not the Odinson.
Two-Faced: Half of his face is damaged, revealing the robotics beneath.
Swiss-Army Weapon: His Universal Weapon, which not only is a hammer capable of smashing foes and cracked walls but can shoot powerful energy that also powers generators.
Truer to the Text: Despite the game's MCU favouritism, this version of Ronan is designed after the comic version.
Taskmaster / Anthony "Tony" Masters
Quest Giver: Challenges the player to a dance-off.
Atomic Superpower: Another radiation mutant, who can shoot off nuclear energy.
Others
Beth the Waitress
Ascended Extra: She had a minor role in the first Avengers movie, while here she has two sidequests dedicated to her, one in Manhattan and one in Sokovia, the latter extending her presence into Age of Ultron where she never even got a cameo in that movie.
Improbable Weapon User: As a coffee barrista, her choice of weaponry is of course coffee, including throwing xups of scalding hot coffee as her ranged attack and pulling out a coffee pot and cup to act like she's pouring a cup before performing a Spin Attack to smack her enemies with them.
Quest Giver: She's found in Manhattan, hoping to find out where some of her customers went, and in Sokovia, looking for assistance.
The Collector / Tanleer Tivan
Brits Love Tea: His request in "Lost in the Aether" is for the player to find a British tea cup for him.
Bystander Syndrome: Does not care about the epic fight between Thor and Malekith, he just wants his tea.
Collector of the Strange: He really exemplifies his sheer obsession with collecting anything rare or interesting through all the Fetch Quests he gives you, such as a wig, a hot dog, an Iron Man helmet, and more.
Handwave: Shows up in the past segment of "Rail Hydra", mentioning he's used a time machine before brushing that aside.
Hypocritical Humor: Grumbles that Tony Stark is arrogant and selfish. Tivan isn't exactly the picture of modesty here.
I Have This Friend: Claims that the wig he seeks in "Avengers Assemble" is for a friend. Definitely not him. He slips up when the player brings an unsuitable wig to him.
Quest Giver: Sends the player character to find items nearby, in exchange for Red Bricks.
Erik Selvig
Adaptational Badass: He grabs a chainsaw when the Tesseract opens up a portal. Also, during the Dark World based level, he fights the elves along with Jane.
Adapted Out: He's left out of Age of Ultron entirely.
Fandral the Dashing
Quest Giver: Asks the player to round up food for an Asgardian feast, after Volstagg ate what he was going to serve.
FRIDAY
Fun with Acronyms: Tries to claim her name stands for something, but she soon gives up and admits that it doesn't.
Demoted to Extra: Since Iron Man 3 is reduced to one level, Happy's just mentioned in the opening narration.
Quest Giver: Asks the player to recover some security badges scattered about Tony's Malibu estate.
Heimdall
Adapted Out: He's left out of "Lost in the Aether".
Super-Strength: He can smash apart glowing walls with his sword.
Hogun the Grim
Demoted to Extra: Manages to take it even further than his film counterpart, who already suffered this in The Dark World, by getting demoted even further, to just a bonus unlockable.
Super-Strength: Hogun can smash glowing walls with his mace.
Jane Foster (MCU)
Adaptational Badass: Unlike her movie incarnation, Jane gets to take part in the final fight with Malekith, even taking out several Dark Elves.
Thinking Up Portals: As her finishing move, Jane summons up a convergence portal to zap away enemies.
Jasper Sitwell
Paper-Thin Disguise: He's really awful at hiding his HYDRA affiliation. As in "blurts out Hail Hydra" to the first person to walk in front of him.
Quest Giver: Two in Manhattan, fighting some bad guys and recovering Chitauri tech, and another at Project Pegasus, rounding up SHIELD rookies who ran off scared from Loki's arrival.
Spared by the Adaptation: Lack of Insight removes his getting hurled into oncoming traffic by the Winter Soldier.
Laura Barton
Pregnant Badass: Despite being very pregnant, she's still capable of fighting, even performing ludicrous backflips with her finishing move.
Louis "Lou" Ferrigno
Hulking Out: Spoofed. He just gets spray-painted green.
Quest Giver: He gives out a few, one of which is one of the Hulk selfie chain.
Odin Borson
Let Us Never Speak of This Again: After the Hulk successfully gets his selfie, Odin agrees to let the player go on their way, so long as they don't mention it to anyone.
Quest Giver: Charges the player with keeping people away from his throne, wherein they keep trying to take Hulk Selfies.
Joke Character: Pepper in the Mk. 43 armor is a playable character... but she can't fly, or use tech panels.
Quest Giver: Asks the player for help getting rid of the giant rabbit Tony bought her for Christmas, selling it via Hulk selfie.
You Don't Look Like You: Is playable at the beginning of the Avengers segment, covering Tony's recruitment, but she uses the model of her Iron Man 3 minifigure (since Pepper didn't have a minifigure in the Avengers sets).
Promoted to Playable: She's just the narrator for the Winter Soldier level, not being playable until the release of the Civil War pack.
SHIELD Scientist
Quest Giver: Three of them; rebooting Dr. Cho's Cradle, gathering weapons across the Helicarrier so she can test them, and rounding up the many, many clones of Mr. Tiddles running around Manhattan.
Luckily, My Shield Will Protect Me: Wields a shield, though being as it is an ordinary shield, she can't do any of the things Cap does with his.
Stan Lee / Stanley Lieber
Composite Character: He gets several roles other bit characters had in the movies, such as that of the German man who refuses to bow down to Loki or the security guard who finds Banner after he returns to normal the first time.
Distressed Dude: As in Super Heroes, Stan is the Citizen in Distress for every level.
Drunk on Milk: During the party at Stark Tower, one of the objectives is to get milkshakes prepared for the party. Stan is the first to help himself, and ends up apparently getting wasted on them.
Skewed Priorities: Even as Cap, Quicksilver and Ultron are brawling on the Korean train, he's still asking them to give him tickets.
Why Do You Keep Changing Jobs?: The only instance of his appearances given an explanation is being in South Korea, where he mentions having changed jobs.
Volstagg the Voluminous
Big Eater: Mention is made of his eating habits, both during "Lost in the Aether" and Fandrall's quest.
Super-Strength: As another Asgardian, Volstagg can smash cracked glowing walls.
DLC Characters
Agent Erik Koenig
Badass Normal: A regular, non-powered, slightly schlubby SHIELD agent.
Body Horror: At the end of the DLC pack, he gets sucked off to... somewhere, a body part at a time. Looks painful.
Tennis Boss: Fighting him consists largely of throwing whatever he throws at Strange right back.
Baron Heinrich Zemo
Aristocrats Are Evil: He's a genuine baron (the barony of Zemo), and leads the Masters of Evil.
Combat Pragmatist: His special attack has him kicking enemies in the crotch.
Composite Character: Has the outfit of Helmut Zemo, his son, but the founding of the Masters of Evil, and his plot is one Heinrich concocted. He also has the voice actor and HYDRA affiliations of his Earth's Mightiest Heroes incarnation.
The Little Detecto: Possesses a scanner that allows him to find invisible items.
Super-Strength: Zemo can crack open walls with his sword.
Villain Protagonist: He's the main character of the Masters of Evil DLC pack.
Black Knight / Augustine Du Lac
Antiquated Linguistics: Supposedly called T'Challa a "varlet". T'Challa's more baffled than offended.
The Dragon: He serves as Ulyssey Klaw's main henchman.
Famous Ancestor: Claims descent from Lancelot. Yes, that Lancelot.
Humiliation Conga: Augustine gets beaten up by the Black Panthers, then thrown into an electric security barrier.
Black Knight / Dane Whitman
Dark Is Not Evil: Despite the name, and the look, Dane is a heroic Avenger, unlike his uncle.
Black Knight / Nathaniel Garrett
Black Knight: Unlike Dane, this is played straight.
Shock and Awe: Her secondary weapon is a stun baton that can charge electric panels.
Sibling Team: Shuri and T'Challa fight a gathering of T'Challa's enemies to regain their country.
Clea Strange
Human Aliens: Or Human Other-Dimensional Being. She's half-Faltine (that's Dormammu's species, and they're Energy Beings) but she looks human, aside from the white hair.
Badass Normal: Nowlanians lacking any sort of superpowers, so Tic only has a gun.
Ulysses Klaw / Ulysses Klaue
Big Bad: The main villain of the Black Panther DLC.
Frickin' Laser Beams: His main weapon in his boss fight with T'Challa and Shuri.
Wasp / Janet Van Dyne (MCU)
The Faceless: Her helmet obscures her face, save her eyes (since Janet's role in Ant-Man is just in flashbacks, and she wouldn't be cast for another two years after the game came out.)
Whirlwind / Dave Cannon
Blow You Away: His power is to rotate his body fast enough to create whirlwinds.
Green and Mean: Predominantly associated with the color green, he's a supervillain and included as part of the Masters of Evil.
Writing Around Trademarks: One of the very few Mutant characters included in the game, probably because despite his status as a Mutant he's not largely associated with them, and also because he's a DLC add-on.
White Wolf / Kasper Cole
Palette Swap: He's a repaint of T'Challa's model, just in white.
Super-Strength: Just like T'Challa, he can crack glowing walls.
Wonder Man / Simon Williams
Flying Brick: He's capable of flying and smashing cracked panels.
Yellowjacket / Darren Cross
The Voiceless: He never says a word, not even a scream when Scott microsizes him.
