If there ever is another Marvel video game, i have just the voice cast in mind:
Charles Adler: Dr. Doom, MODOK
Carlos Alazaraqui: Cyclops, Ringmaster
Shawn Ashmore: Iceman
Diedrich Bader: Kraven the Hunter
Steve Blum: Wolverine, Colossus, Punisher, Drax
David Boat: Thor, Thing
Dee Bradley Baker: Annihilus
Ty Burrell: Captain Marvel
Don Cheadle: War Machine
Jim Cummings: Thanos
Grey DeLisle: Ms. Marvel
Trevor Devall: Rocket Raccoon
Susan Eisenberg: Power Princess
Jonathan Frakes: High Evolutionary
Nika Futterman: Gamora
Mark Hamill: Red Skull
Scarlett Johansson: Black Widow
John Kassir: Deadpool
Mikey Kelley: Silver Surfer, Dark Surfer, Star-Lord
Tom Kenny: Iron Man, Captain America
Wayne Knight: Egghead
Thomas Krestchmann: Baron Wolfgang von Strucker
Maurice LaMarche: Magneto
Jennifer Lawrence: Mystique
Jane Lynch: Nebula
Peter MacNicol: Doctor Octopus
Jason Marsden: Nova
John O'Hurley: Grandmaster
Jim Parsons: Nightmare
Jeremy Renner: Hawkeye
Andy Serkis: Ulysses Klaue
Cobie Smulders: Maria Hill
Fred Stoller: Molecule Man
Tara Strong: Scarlet Witch, Black Cat
Jim Ward: Professor Charles Xavier
Adam West: Nighthawk
Travis Willingham: Hulk, Hyperion