John Carradine

Dr. Rynning

Robert Dix

Dr. Manning

Vicki Volante

Valerie

Jennifer Bishop

Lian Malian

Britt Semand

Linda

Al Adamson

Earthly Vampire (uncredited)

John "Bud" Cardos

Vampire Caveman (uncredited)

Theodore Gottlieb

Opening Narrator (voice) (uncredited)

Gary Graver

Earthly Vampire (uncredited)

Maria Lease

Girl with Purse (uncredited)