History of character has not yet been written.
- This version of the character is exclusive to the continuity of the DC Animated Universe and is an adaptation of Black Mass. The original character was created by Gerry Conway and Chuck Patton and first appeared in Justice League of America #234.
- 4 Appearances of Geoffrey Thibodeux (DCAU)
- 1 Images featuring Geoffrey Thibodeux (DCAU)
- Quotations by or about Geoffrey Thibodeux (DCAU)
- Character Gallery: Geoffrey Thibodeux (DCAU)
Legion of Doom member
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."