Here's mine (not impressive):
Ash Williams
Classic Scorpion
Tremor
Smoke
Reptile
Rain
Ermac
SF-style Sub-Zero
Axel Stone
Adam Hunter
Blaze Fielding
Sketch Turner (Comix Zone, for the uneducated)
Blaze the Cat
Classic Sonic
Duke Nukem
Megaman - MVC style
Kung Fu Man (for the lulz)

Post away.