I'm not sure if I completely understand your question, but Jack Nicholson played the Joker in the 1989 movie Batman, directed by Tim Burton with an iconic soundtrack composed by Danny Elfman.
The main actors in the Departed are Jack Nicholson, Leonardo Dicaprio, Matt Damon, and Mark Wahlberg.
Tim burtons 1989 batman
Jack Nicholson played Jack Napier
The Joker character was not in 'Batman Returns', but he was in the 1989 version 'Batman' played by Jack Nicholson.
Batman: The Movie- Cesar Romero Batman- Jack Nicholson The Dark Knight- Heath Ledger Mark Hamill was the voice actor for the Joker in the animated series.
Jack Napier killed Bruce Wayne's (Batman's) parents when Bruce was 11. Then later he became the Joker when Jack fell into green poisonous acid then it made Jack white and crazy.
The first Batman movie with Adam West was released in 1966 and there was another Batman film with Jack Nicholson in 1989 .
Jack Napier
Jack Napier is the fictional character who became known as the Joker in Batman. Jack was first arrested and convicted for assault with a deadly weapon when he was age 15.
Nixon or Nickson Nicholson or Nickolson
The 1989 Batman movie with Michael Keaton as Batman. Directed by Tim Burton.
If you're talking about the original Batman from the 1960s TV show, the actor was Cesar Romero. If you're talking about the Batman movie with Michael Keaton as Batman, the actor playing the Joker was Jack Nicholson. In conclusion, they decide The Joker needed a real name in the movies and cartoons so they came up with Jack Napier. However, in the comics, it is never revealed.