Dr. Rynning

John Carradine

Acting

Dr. Manning

Robert Dix

Acting

Valerie

Vicki Volante

Acting

Willy

Joey Benson

Acting

Lian Malian

Jennifer Bishop

Acting

Cmdr. Steve Bryce

Bruce Powers

Acting

Bob Scott

Fred Meyers

Acting

Linda

Britt Semand

Acting

Earthly Vampire (uncredited)

Al Adamson

Directing

Man in Warehouse (uncredited)

John Andrews

Acting

Vampire Caveman (uncredited)

John "Bud" Cardos

Directing

Opening Narrator (voice) (uncredited)

Theodore Gottlieb

Acting

Earthly Vampire (uncredited)

Gary Graver

Camera

Boy with Mother (uncredited)

Sean Graver

Acting

Girl with Purse (uncredited)

Maria Lease

Directing

Earthly Vampire (uncredited)

Gus Peters

Acting

Earthly Vampire (uncredited)

Irv Saunders

Acting