Often typecast as a menacing figure, Peter Lorre achieved Hollywood fame first as a featured player and later as a character actor, trademarking his screen performances with a delicately strung balance between good and evil. His portrayal of the child murderer in Fritz Lang's masterpiece M (1931) catapulted him to international fame. Lang said of Lorre: "He gave one of the best performances in film history and certainly the best in his life."