J. Carrol Naish

Dr. Durea, Dr. Frankenstein

Lon Chaney Jr.

Groton

Zandor Vorkov

Count Dracula

Anthony Eisley

Mike Howard

Regina Carrol

Judith Fontaine

Russ Tamblyn

Rico

Jim Davis

Sgt. Martin

John Bloom

The Frankenstein Monster

Shelly Weiss

The Creature (in the film's finale)

Greydon Clark

Strange

Angelo Rossitto

Grazbo

Ann Morell

Samantha

William Bonner

Biker

Forrest J. Ackerman

Dr. Beaumont

Maria Lease

Joanie Fontaine

Bruce Kimball

Ed - the Biker

Albert Cole

Cop Driving Car at Beach

Gary Kent

Bob