History of character is unknown.
- This version of Mister Atom (Earth-S), including all history and corresponding appearances, was erased from existence following the collapse of the Multiverse in the 1985-86 Crisis on Infinite Earths limited series and is now considered apocryphal.
- Mister Atom was originally a character from Fawcett Comics.
- He was leased by DC Comics along with the rest of the Fawcett comics stable of characters in 1972.
- 7 Appearances of Mister Atom (Earth-S)
- 1 Images featuring Mister Atom (Earth-S)
- Quotations by or about Mister Atom (Earth-S)
- Character Gallery: Mister Atom (Earth-S)
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This character is or was primarily an enemy of Captain Marvel, the Wizard Shazam, or any of the extended members of the Marvel Family. This template will categorize articles that include it into the category "Marvel Family Villains."