"Once again Paula the ape woman is brought back to life, this time by a mad doctor and his disfigured assistant, who also kidnaps a nurse in order to have a female blood donor."
Otto Kruger
as Dr. Stendahl
Vicky Lane
as Paula Dupree - the Ape Woman
Amelita Ward
as Ann Forrester
Phil Brown
as Don Young
Jerome Cowan
as Detective W.L. Harrigan
Rondo Hatton
as Moloch the Brute
Eddie Acuff
as Bill
Ernie Adams
as Jim
Charles Wagenheim
as Fred
Eddy Chandler
as Motorcycle Cop
Jack Overman
as Detective - George
Pat Gleason
as Tom - Second Morgue Attendant (uncredited)
William Murphy
as Johnny - Errand Boy (uncredited)
Bob Pepper
as Policeman at Morgue (uncredited)
Robert Clatworthy
Art Direction
Russell A. Gausman
Set Decoration
Maury Gertsman
Director of Photography
John B. Goodman
A.J. Gilmore
M. Coates Webster
Screenplay
Morgan Cox
Associate Producer
Dwight V. Babcock
Story
Jack Pierce
Makeup Artist
Fred R. Feitshans Jr.
Editor
Paul Sawtell
Music Director
Vera West
Costume Design
Harold Young
Director
Paul Neal
Music Editor
Dialogue Coach
Hans J. Salter
Music
Bernard B. Brown
Sound Director
Richard Hageman
William Lava
Robert Pritchard
Sound Technical Supervisor
Wallace Chewning
Second Assistant Camera
Charles S. Gould
Assistant Director
Charles Previn
Frank Skinner
Dimitri Tiomkin
William Holland