Zoran Lazarevic from Uncharted 2: Among Thieves. Power-hungry Russian war criminal. You have to play the game to understand why I chose him. His speech about history's "greatest" people was..great.
eh... Doctor Robotnik? He's so cool, I think... The big moustache and the nice flying glasses :3 Or then it's the Joker or Riddler from LEGO Batman: The Videogame... I just dunno :P