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