what is the joker's identity
Best Answer: His cousin Melvin Reipan called him cousin Jack. His name was Jack Napeir, Which is his cousin's name spelled backwards. in the 1960's Batman Movies. And there has only been one Joker, besides when Joker brain washed the third robin when robin was a kid, then later in life he became the joker. This was only said in Tim Burtons movie. The movie where Michael Keaton was batman. In the COMIC books his real name is never revealed. However he did use the alias Joe Kerr.