Chucko

Chucko was a nasty bullying type who truly enjoys inflicting misery on others. A head enforcer for his Jokerz gang, he was a lot stronger and faster than his flabby gut would lead one to believe. True to his sadistic nature, Chucko's face was always hidden behind his mocking clown mask (with the exception of the Jokerz heist at Wayne Enterprises, where he was wearing a gas mask instead). He is the leader of his gang of Jokerz.

Alternate Future
Chucko underwent physical alteration when in the service of Chronos. The bottom half of his body has been replaced by a motor powered unicycle-like vehicle. His main weapon is an energy saber.

After that Chucko had tipped off Batman II to when and where Batman, Wonder Woman and John Stewart would be arriving from the past, Chronos took him 65 million years back to the end of the Cretaceous period, where after being spotted by a Tyrannosaurus, Chucko noticed he had been placed in the epicenter of the famous meteorite impact that is said to have killed off the Dinosaurs. This of course, killed him as well.

Feature Film

 * Batman Beyond: Return of the Joker

Justice League Unlimited

 * "The Once and Future Thing Part One: Weird Western Tales"
 * "The Once and Future Thing Part Two: Time, Warped"