- This version of the character is exclusive to the continuity of the television series Justice League Unlimited and is an adaptation of Joseph Martin/Atomic Skull. The original character was created by Roger Stern and Bob McLeod and first appeared in Action Comics #670.
- Atomic Skull was voiced by Lex Lang.
- 7 Appearances of Joseph Martin (DCAU)
- 1 Images featuring Joseph Martin (DCAU)
- Quotations by or about Joseph Martin (DCAU)
- Character Gallery: Joseph Martin (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."