The She-Creature

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