Then you've got Christopher Walken, a versatile actor who continuously creeps out audiences with his googly eyes and off-kilter deliveries in films such as "Sleepy Hollow," "The Deer Hunter," and "Batman Returns." While it's true that Steve Buscemi and Christopher Walken may look a bit like deranged Muppets, and you may not see them in leading roles all too often, but over the course of their prolific careers, these two actors have brought to life a slew of unforgettable supporting characters, who frequently steal the show.