Holy Shit! I can't believe Marlon Brando didn't even get a single mention in this thread. He was the greatest actor by the time he was alive. Just look at his performance in The Godfather and On the Waterfront! He's a milestone in movie history! Other great actors are Al Pacino and Robert De'Niro. All these three actors made great performances in The Godfather and The Godfather: Part II. Al Pacino did a terrific performance in The Godfather: Part II as Michael Corleone.