The Atom was a member of the Justice Alliance of America when they fought Medulla for the last time. After Lady Quark killed Medulla, Pariah explained to the Alliance that their world was going to end. When their headquarters was destroyed Aquaman saved the Justice Alliance using dolphins. The Atom was erased from existence with the rest of Earth-D.
- Size Alteration: Able to shrink his body to varying degrees (including the subatomic level). The Atom can assume any size from his normal stature down to sub-microscopic.
- 1 Appearances of Atom (Earth-D)
- 2 Images featuring Atom (Earth-D)
- Quotations by or about Atom (Earth-D)
- Character Gallery: Atom (Earth-D)