Francis Quinncannon
Barry Fitzgerald
Edward Armstrong
Walter Huston
Fred Narracott
Harry Thurston
Philip Lombard
Louis Hayward
William Blore
Roland Young
Vera Claythorne
June Duprez
Nikita "Nikki" Starloff
Mischa Auer
John Mandrake
C. Aubrey Smith
Emily Brent
Judith Anderson
Thomas Rogers
Richard Haydn
Ethel Rogers
Queenie Leonard
Director
René Clair
Producer
Novel
Agatha Christie
Director of Photography
Lucien N. Andriot
Original Music Composer
Mario Castelnuovo-Tedesco
Screenplay
Dudley Nichols
Production Manager
Joseph H. Nadel
Art Direction
Ernst Fegté
Music Director
Charles Previn
Assistant Director
Sam Nelson
Unit Manager
Ben Berk
Editor
Harvey Manger
Sound Recordist
Corson Jowett
Arthur Johns
Set Decoration
Edward G. Boyle
Associate Producer
Leo C. Popkin
Costume Design
René Hubert