Showcase Presents: Challengers Of The Unknown — DC Comics
Issue: #2
Thrill to more than 500 pages of comic action collected from CHALLENGERS OF THE UNKNOWN #18-37 (1961-1964)! Along the way, the intrepid foursome faces dangers of every imaginable sort, including cosmic-powered alien beasts, doomed worlds, futuristic knights and much more.
Creators: France Herron, Bob Brown
Characters: Ace Morgan, June Robbins, Prof Haley, Red Ryan, Rocky Davis, Volcano Man