Dr. Rynning
John Carradine
Dr. Manning
Robert Dix
Vampire Caveman (uncredited)
John "Bud" Cardos
Opening Narrator (voice) (uncredited)
Theodore Gottlieb
Earthly Vampire (uncredited)
Gary Graver
Boy with Mother (uncredited)
Sean Graver
Girl with Purse (uncredited)
Maria Lease
Gus Peters
Irv Saunders
Valerie
Vicki Volante
Willy
Joey Benson
Lian Malian
Jennifer Bishop
Cmdr. Steve Bryce
Bruce Powers
Bob Scott
Fred Meyers
Linda
Britt Semand
Al Adamson
Man in Warehouse (uncredited)
John Andrews
Director of Photography
Vilmos Zsigmond
Producer
Director
Screenplay
Sue McNair
Original Music Composer
Mike Velarde
Associate Producer
Ewing Miles Brown
Makeup Artist
Jean Hewitt
Executive Producer
Zoe Phillips
Special Effects
David L. Hewitt
William G. Troiano
Editor
Peter Perry Jr.
Charles McMullen