| Unofficial Challengers of the Unknown Index |
Credits:
| Story | Ed Herron |
| Art | Bob Brown |
| Lettering | Stan Starkman |
| Associate editing | Murray Boltinoff, George Kashdan |
| Editing | Jack Schiff |
Feature Character(s):
Villain(s):
- Dakyab and his minions (first appearance; overthrows ruler of Ak-Sel; deposed)
Other Character(s):
- Zanna (first appearance; ruler of Ak-Sel; accidentally sent to Earth; returned to power)
Location(s):
- Space Sector 2814
- Unidentified Space Sector
- Ak-Sel (first appearance)
Story Reprinted in:
- Showcase Presents Challengers of the Unknown #1 (2006)
Credits:
| Art | Bob Brown |
| Associate editing | Murray Boltinoff, George Kashdan |
| Editing | Jack Schiff |
Feature Character(s):
- Challengers of the Unknown:
- Ace Morgan
- Rocky Davis (possessed by a golden fleece)
- Red Ryan
- Prof Haley (next in JLA: Year One #12)
Supporting Character(s):
- June Robbins (next in issue #14/2)
Other Character(s):
- Dr. Henry (first appearance; leading an archaeological expedition)
Location(s):
- A Greek island (first appearance)
Story Reprinted in:
- Showcase Presents Challengers of the Unknown #1 ([October] 2006)