George Harvey Bone
Laird Cregar
Netta Longdon
Linda Darnell
Man at Bonfire (uncredited)
Charles Coleman
Mickey (uncredited)
Michael Dyne
Ogilby - Fulham Antique Dealer (uncredited)
Francis Ford
Det. Sgt. Lewis (uncredited)
Leyland Hodgson
Street Vendor (uncredited)
J. Farrell MacDonald
Waiter (uncredited)
Eric Wilton
Supt. Clay (uncredited)
Frederick Worlock
Harry Allen
Radford Allen
Jimmy Aubrey
Dr. Allan Middleton
George Sanders
Wilson Benge
Frank Benson
Bob Burns
Steve Carruthers
Jack Chefe
James Conaty
Harold de Becker Jr.
Leslie Denison
Alan Edmiston
Nestor Eristoff
Eddie Carstairs
Glenn Langan
Franklyn Farnum
John Goldsworthy
Pub Patron (uncredited)
Bobby Hale
Art Howard
Charles Irwin
Michael Jeffers
Charles Knight
George Leigh
Boy (Uncredited)
David Leland
Connie Leon
Barbara Chapman
Faye Marlowe
Wilbur Mack
Thomas Martin
Pat McKee
John Rogers
Constantine Romanoff
Sam Savitsky
Leslie Sketchley
Mabel Smaney
Val Stanton
Count Stefenelli
Sir Henry Chapman
Alan Napier
Det. Insp. King (uncredited)
J.W. Austin
Ted Billings
Night Watchman in Square
Clifford Brooke
Netta's Maid Yvette (uncredited)
Ann Codee
Original Music Composer
Bernard Herrmann
Novel
Patrick Hamilton
Director
John Brahm
Makeup Artist
Ben Nye
Screenplay
Barré Lyndon
Producer
Robert Bassler
Director of Photography
Joseph LaShelle
Editor
Harry Reynolds
Research Assistant
Gertrude Kingston
Researcher
Frances C. Richardson
Art Direction
Maurice Ransford
Lyle R. Wheeler
Set Decoration
Thomas Little
Costume Design
René Hubert
Kay Nelson
Sound
Bernard Freericks
Harry M. Leonard
Visual Effects
Fred Sersen