On screen
Cast
17 credited performers
John Carradine
Dr. Rynning
Robert Dix
Dr. Manning
Vicki Volante
Valerie
Artwork unavailable
Joey Benson
Willy
Jennifer Bishop
Lian Malian
Artwork unavailable
Bruce Powers
Cmdr. Steve Bryce
Artwork unavailable
Fred Meyers
Bob Scott
Britt Semand
Linda
Al Adamson
Earthly Vampire (uncredited)
Artwork unavailable
John Andrews
Man in Warehouse (uncredited)
John "Bud" Cardos
Vampire Caveman (uncredited)
Theodore Gottlieb
Opening Narrator (voice) (uncredited)
Gary Graver
Earthly Vampire (uncredited)
Artwork unavailable
Sean Graver
Boy with Mother (uncredited)
Maria Lease
Girl with Purse (uncredited)
Artwork unavailable
Gus Peters
Earthly Vampire (uncredited)
Artwork unavailable
Irv Saunders
Earthly Vampire (uncredited)