[1] Mister Atom first appeared in Captain Marvel Adventures #78 and was created by Otto Binder and C. C.

Mister Atom is a nuclear-powered robot created by Dr. Charles Langley, who sacrifices himself to animate him.

[3][4][5][6] Decades later, King Kull resurrects Atom, who joins the Monster Society of Evil before being transported to a lifeless universe.

Throughout his appearances, he destroys Captain Marvel's hometown of Fairview and joins the Secret Society of Super Villains.

He can fly at subsonic speeds, fire nuclear blasts from his hands, and render radioactive materials inert.