Calificación
Reparto

Otto Kruger
Dr. Stendahl

Vicky Lane
Paula Dupree - the Ape Woman

Amelita Ward
Ann Forrester

Phil Brown
Don Young

Jerome Cowan
Detective W.L. Harrigan

Rondo Hatton
Moloch the Brute

Eddie Acuff
Bill

Ernie Adams
Jim

Charles Wagenheim
Fred

Eddy Chandler
Motorcycle Cop

Jack Overman
Detective - George

Pat Gleason
Tom - Second Morgue Attendant (uncredited)

William Murphy
Johnny - Errand Boy (uncredited)

Bob Pepper
Policeman at Morgue (uncredited)