Alfred L. Werker
Director
Eugene Ling
Screenplay
Albert DeMond
Story
Martin Berkeley
Additional Dialogue
Aubrey Schenck
Producer
David Buttolph
Original Music Composer
Joseph MacDonald
Director of Photography
Glen MacWilliams
Director of Photography
Frances C. Richardson
Researcher
Harmon Jones
Editor
Boris Leven
Art Direction
Lyle R. Wheeler
Art Direction
Thomas Little
Set Decoration
Kay Nelson
Costume Design
Ben Nye
Makeup Artist
Vincent Price
Dr. Richard Cross
Lynn Bari
Nurse Elaine Jordan
Frank Latimore
Lt. Paul Stewart
Anabel Shaw
Mrs. Janet Stewart
Stephen Dunne
Dr. Stevens (as Michael Dunne)
Reed Hadley
District Attorney O'Neill
Renee Carson
Miss Hatfield - Head Nurse
Charles Trowbridge
Dr. Franklin Harvey
Robert Adler
Frank - Male Nurse
Harry Carter
Sanitarium Orderly
Ruth Clifford
Mrs. Margaret Cross
John Davidson
Mr. Edwards
Selmer Jackson
Dr. Blair
Ruth Nelson
Mrs. Margaret Cross (voice)
George E. Stone
Cab Driver
Charles Tannen
Hotel Clerk
Pierre Watkin
Blake - Belmont Arms Hotel Manager
Mary Young
Mrs. Penny
