Cinematic Debut
The earliest on-screen adaptation of the Joker was in the 1966 TV series Batman, and its film adaptation, Batman. The character was then played by Cesar Romero. In 1989, a darker version of the Joker – played by Jack Nicholson – was debuted in Tim Burton’s film, Batman. The movie went on to earn over $400 million at the worldwide box office. This role was a defining performance for Nicholson and was even considered to overshadow Batman’s. One film critic said the audience had to remind themselves at times not to root for the Joker.
Suicide Squad Set
Seeing as playing the Joker seems to have somewhat of an effect on the actors, Warner Bros. wasn’t taking any chances with Suicide Squad. They hired a therapist to be on the set during the making of the movie. A lot of people believe it was because of the toll playing the Joker took on Heath Ledger, but it hasn’t been confirmed.