Lance Fuller
Dr. Ted Erickson
Paul Dubov
Johnny, the barker
Frank Jenks
Plainclothes Sgt. with Lt James
Cathy Downs
Dorothy Chappel
Jack Mulhall
Lombardi's Lawyer
Edward Earle
Professor Anderson
Chester Morris
Dr. Carlo Lombardi
Tom Conway
Timothy Chappel
Frieda Inescort
Mrs. Chappel
Paul Blaisdell
The She-Creature
El Brendel
Olaf, the butler
Kenneth MacDonald
Police Doctor with Prof. Anderson
Marla English
Andrea Talbott / Elizabeth Wetherby
William Hudson
Bob, the ex-fiancé
Ron Randell
Police Lt. Ed James
Bess Flowers
Party Guest
Spike
King the Dog