Challengers of the Unknown
(1961-1968)
The Doomed World of Tomorrow
- Challengers of the Unknown Volume 1 #18
The Alien Who Stole a Planet
- Challengers of the Unknown Volume 1 #19
- Challengers of the Unknown Volume 1 #22
- Challengers of the Unknown Volume 1 #23
The Rise of Multi-Man
- Challengers of the Unknown Volume 1 #24
- Challengers of the Unknown Volume 1 #25
- Challengers of the Unknown Volume 1 #26
- Challengers of the Unknown Volume 1 #27
- Challengers of the Unknown Volume 1 #28
- Challengers of the Unknown Volume 1 #29
- Challengers of the Unknown Volume 1 #30
The Fifth Challenger and Multi-Woman
- Challengers of the Unknown Volume 1 #31
- Challengers of the Unknown Volume 1 #32
- Challengers of the Unknown Volume 1 #33
- Challengers of the Unknown Volume 1 #34
War Against the Moon-Beast
- Challengers of the Unknown Volume 1 #35
- Challengers of the Unknown Volume 1 #36
- Challengers of the Unknown Volume 1 #37
- Challengers of the Unknown Volume 1 #38
Rocky the Genius Challenger
- Challengers of the Unknown Volume 1 #39
The Queen of the Challenger-Haters
- Challengers of the Unknown Volume 1 #45
- Challengers of the Unknown Volume 1 #48
The Legion of the Weird
- Challengers of the Unknown Volume 1 #55
- Challengers of the Unknown Volume 1 #56
- Challengers of the Unknown Volume 1 #57
- Challengers of the Unknown Volume 1 #58
- Challengers of the Unknown Volume 1 #59
- Challengers of the Unknown Volume 1 #60
- Challengers of the Unknown Volume 1 #61
- Challengers of the Unknown Volume 1 #62
- Challengers of the Unknown Volume 1 #63