Joker (Earth-66)

"Citizens of Gotham City, this is the Joker."

- Joker

The Joker is a criminal operating in Gotham City.

Terrorizing Gotham City
At some point, the Joker became a criminal who terrorized Gotham City. His voice was among one of those heard by Beast Boy whilst he was observing the multiverse from The Red.

Abilities

 * Genius-Level Intellect:
 * Gadgetry:
 * Hypnosis:
 * Science:
 * Hand-to-Hand Combat: