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