Roy Del Ruth
Director
Harry Gerstad
Editor
Orville H. Hampton
Story
Karl Struss
Director of Photography
Orville H. Hampton
Screenplay
Ben Nye
Makeup Artist
Joseph Kish
Set Decoration
Jack Leewood
Producer
John B. Mansbridge
Art Direction
Lyle R. Wheeler
Art Direction
Irving Gertz
Original Music Composer
Walter M. Scott
Set Decoration
Eve Newing
Hairstylist
Charles O'Neal
Story
W.D. Flick
Sound
Bob Bryant
Stunts
Fred Etcheverry
Special Effects
Arthur Cornell
Sound Effects
Ollie Hughes
Costume Supervisor
Herbert E. Mendelson
Production Manager
George Westenhiser
Property Master
Herbert E. Mendelson
Assistant Director
Orven Schanzer
First Assistant Editor
Mary Coleman
Script Supervisor
William McCrary
Costume Supervisor
Harry Gerstad
Supervising Film Editor
Dick Smith
Makeup Artist
Beverly Garland
Joyce Webster, aka Jane Marvin
Bruce Bennett
Dr. Eric Lorimer
Lon Chaney Jr.
Manon
George Macready
Dr. Mark Sinclair
Frieda Inescort
Mrs. Lavinia Hawthorne
Richard Crane
Paul Webster
Douglas Kennedy
Dr. Wayne McGregor
Bill Bradley
Patient 'Number Six' (uncredited)
Hal K. Dawson
Conductor
Dudley Dickerson
Porter
John Frederick
1st Male Nurse (uncredited)
Ruby Goodwin
Louann
Ken Kane
Third Male Nurse (uncredited)
Boyd Stockman
Alligator-headed Paul
Vince Townsend Jr.
Toby
Lee Warren
2nd Male Nurse (uncredited)
