Joker is a supervillain appearing in comic books published by DC Comics. Joker was created by Bill Finger, Bob Kane, and Jerry Robinson. The character is known as one of the most iconic DC characters and was featured in a large number of comics, movies, tv series, video games, and numerous other fictional works. Originally, Joker was created to be a sadistic psychopath with violent and criminal tendencies. His first appearance was in Batman #1 in 1940 and since then he has been known as one of the most iconic Batman villains.