Cesar Romero. Batman (1966-68)
Endless re-runs of the campy television show made Romero's playful, giggly peformance the definitive screen Joker for multiple generations. The actor famously refused to shave his moustache for the role, so they applied the white makeup over it.
Jack Nicholson. Batman (1989)
Producer Michael Uslan had dreamed of casting Nicholson in the role ever since seeing the actor's unhinged performance in The Shining (1980). Nicholson went even bigger here, bringing genuine menace to the character for the first time, arguably overshadowing the film's title character.
Mark Hamill. Batman: The Animated Series (1992-95)
Hamill has long been