I definitely agree with your pick there, Eddie (cool pic, too). In no particular order, my other picks would be:
Bruce Lee, esp. in Enter the Dragon(big surprise, huh? )
Hugh Jackman as Wolverine.
Al Pacino as Scarface.
John Wayne as Rooster Cogburn.
DeNiro as Travis Bickle (Taxi Driver).
I got about a zillion more, but I'll let someone else contribute...