E3 2010: Marvel vs Capcom 3 roster leaked? - ComputerAndVideoGames.com

Marvel: Spider-Man, Hulk, Wolverine, Mr Fantastic, Captain America, Iron Man, War Machine (alternate Iron Man outfit) Elektra, Thor, X-23, Magneto, Dr Doom, Shuma-Gorath, Emma Frost, Deadpool, Super Skrull, Taskmaster, Juggernaut, She-Hulk

Capcom: Ryu, Mike Haggar, Frank West, Chuck (alternate Frank West outfit), Spencer (Bionic Commando), Dante, Chris, Morrigan, Arthur, Amaterasu , Albert Wesker, Zero, Chun-li, Viewtiful Joe, Trish, Tron Bonne, Hsien-Ko, Akuma, Felicia