From Angela to X-23, Marvel Heroes Omega hero list contains all 63 characters in the decommissioned video game.

A-GG-PP-Z
AngelaGhost RiderPsylocke
Ant-ManGreen GoblinPunisher
BeastHawkeyeRocket Raccoon
Black BoltHulkRogue
Black CatHuman TorchScarlet Witch
Black PantherIcemanShe-Hulk
Black WidowInvisible WomanSilver Surfer
BladeIron FistSpider-Man
CableIron ManSquirrel Girl
Captain AmericaJean GreyStar-Lord
Captain MarvelJuggernautStorm
CarnageKitty PrydeTaskmaster
ColossusLokiThing
CyclopsLuke CageThor
DaredevilMagikUltron
DeadpoolMagnetoVenom
Doctor DoomMoon KnightVision
Doctor StrangeMr. FantasticWar Machine
ElektraNick FuryWinter Soldier
Emma FrostNightcrawlerWolverine
GambitNovaX-23

For a view of every costume for all characters in the Marvel Heroes Omega hero list, visit the Marvel Heroes Info site by clicking here.