Jack Napier (Earth-8026)

"I'm a comedian, I never wanted to hurt anybody! I just like making people laugh! But us comedians, see, we're always taking shots from folks who just don't get the joke."

- Joker

Jack Napier is the criminal/terrorist that calls himself the Joker.

Trivia

 * After graduating High School and being homeless, he considered enlisting in the military.
 * The first person the Joker ever killed was his former boss, Carl Grissom.
 * His white skin and green hair are real, but he applies his lipstick and eyeliner himself.
 * He never told people his real name because he felt it "humanized" him. Like Batman, Jack wanted the Joker to be a symbol, but for much different reasons.
 * He believes that the Batman is the only person who keeps him sane and that without the Batman, there is no Joker.
 * He is a masochist.
 * He and Harley Quinn have never had sex. They've only kissed a couple of times.
 * After becoming the Joker and killing Carl, he went back to his home with the intention to kill Sarah, but after catching a glimpse of her through the window rubbing her pregnant belly, he found himself unable to do it. He instead began anonymously putting money into her bank accounts to support his daughter, whose name he doesn't even know. However, when Sarah got remarried, he robbed her blind.
 * He has been given several different diagnoses by several different psychiatrists.
 * More to come...