Steven Grant "Steve" Rogers / Captain America
Species: Human Mutate
Voiced By: Jeff Schine
Once a sickly volunteer for a super-soldier program, Steve Rogers was given superhuman strength and agility, leading the Allies to victory in World War II as the superhero Captain America. After being trapped under a sheet of ice near the end of the war, Rogers went into a state of suspended animation before being awoken in the modern day, finding a new purpose as a hero by becoming the leader of the Avengers.
Anthony "Tony" Edward Stark / Iron Man
Voiced By: Nolan North
Tony Stark was a billionaire, genius weapons manufacturer until an international incident resulted in him having to fight his way out of a terrorist compound with a suit of armor that he had to build for himself. Having a change of heart about the arms industry after seeing the effects of his weapons up-close, Stark became Iron Man to defend the planet, joining the Avengers to ensure that he could share his technology with those that he trusted.
Voiced By: Travis Willingham
The Norse God of Thunder, Thor was cast out of Asgard by his father, Odin, after disturbing the peace between his people and the Frost Giants, being exiled to Midgard — their word for Earth. After learning humility and subsequently regaining his worthiness, Odinson decides to become a protector for Midgard, being a part of the Avengers when he isn't needed in the other realms.
Doctor Robert Bruce Banner / The Incredible Hulk
Species: Human Mutate
Voiced By: Troy Baker
Bruce Banner was a scientist with the misfortune of being caught at ground zero of a Gamma Bomb explosion — which, instead of killing him, awoke a vicious, gargantuan alter-ego called the Hulk, which he transforms into upon being enraged. While Banner is still respected as a scientist, the Hulk is widely feared by the public, so he allies himself with the Avengers in order to make sure that he can keep the big guy in check.
Natalia Alianovna "Natasha" Romanova / Black Widow
Citizenship: Russian, American
Voiced By: Laura Bailey
Trained as a Russian spy in their infamous Black Widow program, Natasha Romanov was brainwashed into serving their needs after being reconditioned in the Red Room, where she received technological and biological enhancements. Though she once fought on the wrong side of history, Romanov later broke free of her mental conditioning and joined the Avengers as a means to atone for her prior crimes.
Kamala Khan / Ms Marvel
Voiced By: Sandar Saad
A dedicated fan of the Avengers, Kamala Khan traveled from New Jersey to California in order to see her heroes open up a new facility — only for the widely-anticipated A-Day to end in tragedy when a Terrigen Bomb went off, killing thousands. However, that same explosion awoke Khan's Inhuman powers, allowing her to stretch and grow. Khan assumes the identity of Ms. Marvel and seeks to clear the names of all of the Avengers when she discovers that A.I.M. was responsible for the destruction caused on A-Day.
- Rubber Man: She's a polymorph, and can contort the proportions of her body into any shape. In the trailers, we see her enlarge her fists to punch harder to lengthen her legs to run more quickly.