Batman is a superhero who appears in American comic books published by DC Comics. Batman was created by writer Bill Finger and artist Bob Kane, and debuted in the 27th issue of the comic book Detective Comics on March 30, 1939. In the DC Universe, Batman is the alias of Bruce Wayne, a wealthy American playboy, philanthropist, and industrialist who resides in the fictional Gotham City. Originally a millionaire, later versions of the character depict him as a billionaire.