"Ten strangers are invited as weekend guests to a remote mountain mansion. When the host doesn't show up, the guests start dying, one by one."
Hugh O'Brian
as Hugh Lombard
Shirley Eaton
as Ann Clyde
Fabian
as Mike Raven
Leo Genn
as General Mandrake
Stanley Holloway
as Det. William Henry Blore
Wilfrid Hyde-White
as Judge Arthur Cannon
Daliah Lavi
as Ilona Bergen
Dennis Price
as Dr. Edward Armstrong
Marianne Hoppe
as Elsa Grohmann
Mario Adorf
as Joseph Grohmann
Bill Mitchell
as Narrator (voice)
Christopher Lee
as Mr. U.N. Owen (voice)
Agatha Christie
Novel
Harry Alan Towers
Producer
Screenplay
George Pollock
Director
Dudley Nichols
Malcolm Lockyer
Original Music Composer
Ernest Steward
Director of Photography
Peter Boita
Editor
Peter Keen
Sound Editor
Harry M. Popkin
Oliver A. Unger
Executive Producer
Frank White
Art Direction
Gerry Fletcher
Makeup Artist