Credits
Cast
Edward Connell
David Fielding (as Skip Shimer)
Barbara Hewitt
Susan Turner
Jack Woods
Asmodeus
Frank Bonner
Jim Hudson (as Frank Boers Jr.)
Robin Christopher
Vicki (as Robin Snider)
James Phillips
Reporter Sloan (as Jim Phillips)
Fritz Leiber Jr.
Dr. Arthur Watermann (as Fritz Leiber)
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
Camera
Ed Begley Jr.
Camera Operator
Mike Hoover
Director of Photography
Costume & Make-Up
Robynne Hoover
Makeup Artist
Crew
David Allen
Special Effects
Jim Danforth
Special Effects
Editing
John Joyce
Editor
Production
Dennis Muren
Associate Producer, Special Effects, Director
Jack H. Harris
Producer
Sam Altonian
Production Manager
Sound
John Caper Jr.
Music Supervisor
Jaime Mendoza-Nava
Original Music Composer
Bradley Lane
Sound Mixer
Writing
Jack Woods
Screenplay, Director
Mark Thomas McGee
Story