In no particular order,
MK: Kano, Johnny Cage, Quan Chi
INJ: Lobo, Scarecrow, Bane
SF: Necalli, Zangief, Alex
Guilty Gear: Kum Haehyun, Slayer, Baiken
Shrek SuperSlam: Black Knight, Quasimodo, G-Nome
SoulCalibur: Nightmare, Voldo, Mitsurugi
Tekken: Ogre, Kuma, Hwoarang
MvC: Iron Fist...