| Unofficial Challengers of the Unknown Index |
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Credits:
| Story | Bill Finger |
| Art | Bob Brown |
| Lettering | Stan Starkman |
| Editing | Murray Boltinoff |
Feature Character(s):
- Challengers of the Unknown:
- Ace Morgan (last in Doom Patrol #102; next in Silver Age #1)
- Prof Haley (last in Doom Patrol #102; next in Silver Age #1)
- Red Ryan (last in Doom Patrol #102; next in Silver Age #1)
- Rocky Davis (last in Doom Patrol #102; next in Silver Age #1)
Villain(s):
- Korba (first appearance; a former dictator who enjoyed starting wars)
- Iron Gladiator (first appearance; a large robot built to act as a gladiator)
- Totem (first appearance; three bioweapons created by an ancient race; all three destroyed)
Other Character(s):
- Challengers Corps:
- Count Anthony Dragio (last in issue #44)
- Tom Kaloki (of Hawaii; first appearance)
- Two unnamed members (first appearance for both)
Location(s):
- Challengers Mountain
- Korba's Island (first appearance; a Pacific island that contains life-sized replicas of the world's monuments)