Cast
Edward Connell
David Fielding
Barbara Hewitt
Susan Turner
Jack Woods
Asmodeus
Frank Bonner
Jim Hudson
Robin Christopher
Vicki
James Phillips
Reporter Sloan
Fritz Leiber Jr.
Dr. Arthur Watermann
Patrick Burke
Doctor Branson
Sharon Gray
Nurse
Louis Clayton
Old man in cave
Norvelle Brooks
Irving L. Lichtenstein
James Dwion
The Orderly
Forrest J. Ackerman
Doctor on Tape Recorder (voice) (uncredited)
Jack H. Harris
Detective Harrison (uncredited)
Chuck Niles
Reporter Sloan (voice) (uncredited)
Jim Duron
The Green Giant
Crew
Costume & Make-Up
Robynne Hoover
Makeup Artist
Editing
John Joyce
Editor