Fletcher Markle
Director
John Dickson Carr
Story
Frank Fenton
Writer
Stephen Ames
Producer
David Raksin
Original Music Composer
Newell P. Kimlin
Editor
George J. Folsey
Director of Photography
Walter Plunkett
Costume Design
Joseph Cotten
Dupin
Barbara Stanwyck
Lorna Bounty
Louis Calhern
Charles Theverner
Leslie Caron
Madeline Minot
Joe De Santis
Martin, the butler
Jim Backus
Flaherty
Margaret Wycherly
Mrs. Flynn, the housekeeper
Richard Hale
Durand, the lawyer
Nicholas Joy
Dr. Roland
Roy Roberts
Policeman
Mitchell Lewis
Zack, the waiter
Jean Inness
Landlady
Francis Pierlot
Pharmacist
