- The first rule of live comedy? Always leave them wanting more!
- — Joker src
- This version of the character is exclusive to the continuity of the television series Justice League Action and is an adaptation of the Joker. The original character was created by Jerry Robinson, Bob Kane, and Bill Finger and first appeared in Batman #1.
- The Joker was voiced by Mark Hamill
- 8 Appearances of Joker (Justice League Action)
- 2 Images featuring Joker (Justice League Action)
- 1 Quotations by or about Joker (Justice League Action)
- Character Gallery: Joker (Justice League Action)
This character is or was primarily an enemy of the Justice League, in any of its various incarnations. This template will categorize articles that include it into the category "Justice League Villains."