
A mysterious hypnotist reverts his beautiful assistant back into the form of a prehistoric sea monster that she was in a past life.
Cast

Chester Morris
Dr. Carlo Lombardi

Marla English
Andrea Talbott / Elizabeth Wetherby

Tom Conway
Timothy Chappel

Cathy Downs
Dorothy Chappel

Lance Fuller
Dr. Ted Erickson

Ron Randell
Police Lt. Ed James

Frieda Inescort
Mrs. Chappel

Frank Jenks
Plainclothes Sgt. with Lt James

El Brendel
Olaf, the butler

Paul Dubov
Johnny, the barker
William Hudson
Bob, the ex-fiancé
Flo Bert
Marta, the Maid
Jeanne Evans
Mrs. Brown

Kenneth MacDonald
Police Doctor with Prof. Anderson

Jack Mulhall
Lombardi's Lawyer

Edward Earle
Professor Anderson

Bess Flowers
Party Guest

Paul Blaisdell
The She-Creature

Spike
King the Dog
Crew

Edward L. Cahn
Director
Lou Rusoff
Screenplay, Story

Ronald Sinclair
Editor
Frederick E. West
Director of Photography
Bartlett A. Carré
Assistant Director, Production Supervisor

Samuel Z. Arkoff
Executive Producer
Alex Gordon
Producer
Israel M. Berman
Associate Producer
Jack Dusick
Makeup Artist
Ronald Stein
Original Music Composer
Harry Reif
Set Decoration

Paul Blaisdell
Creature Design
Jerry Zigmond
Idea
Don Ament
Art Direction
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