Hugh O'Brian
Hugh Lombard
Hugh O'Brian
Hugh Lombard
Shirley Eaton
Ann Clyde
Fabian
Mike Raven
Leo Genn
General Mandrake
Stanley Holloway
Det. William Henry Blore
Wilfrid Hyde-White
Judge Arthur Cannon
Daliah Lavi
Ilona Bergen
Dennis Price
Dr. Edward Armstrong
Marianne Hoppe
Elsa Grohmann
Mario Adorf
Joseph Grohmann
Bill Mitchell
Narrator (voice)
Christopher Lee
Mr. U.N. Owen (voice)
Malcolm Lockyer
Original Music Composer
Dudley Nichols
Screenplay
Ernest Steward
Director of Photography
Harry Alan Towers
Producer
George Pollock
Director
Agatha Christie
Novel
Harry Alan Towers
Screenplay
Harry M. Popkin
Producer
Frank White
Art Direction
Peter Keen
Sound Editor
Oliver A. Unger
Executive Producer
Gerry Fletcher
Makeup Artist
Peter Boita
Editor