Earth-Four

Earth-Four is a fictional reality featured in comic books published by DC Comics. This reality has been retroactively allocated to include superhero stories originally published in the 1960s by Charlton Comics. It could be argued that the first appearance of Earth-Four goes back to Space Adventures #33 back in 1960, which is the first appearance of Captain Atom. DC Comics purchased all of the Charlton action heroes and provided their reality with the designation Earth-Four in Crisis on Infinite Earths #1 in 1985.

Residents

 * Aristotle Rodor
 * Blue Beetle, Dan Garrett
 * Blue Beetle, Ted Kord
 * Captain Atom, Allen Adam
 * Ghost, Alec Rois
 * Iron Arms
 * Jewelee
 * Killer Koke
 * Judomaster, Hadley Jagger
 * Nightshade, Eve Eden
 * Peacemaker, Christopher Smith
 * Punch, Clyde Phillips
 * Question, The, Vic Sage
 * Thunderbolt, Peter Cannon
 * Sarge Steel

Comic titles

 * Blue Beetle Vol 5
 * Blue Beetle Vol 6
 * Captain Atom Vol 3
 * Peacemaker Vol 1
 * Space Adventures Vol 1