Robert Newton
Dr. Clive Riordan
Phil Brown
Bill Kronin
Sally Gray
Storm Riordan
Naunton Wayne
Supt. Finsbury
James Harcourt
Aitkin (butler)
Betty Cooper
Miss Stevens (receptionist)
Allan Jeayes
The Colonel, blustery club member
Ronald Adam
Talkative, balding club member
Roddy Hughes
Bespectacled third club member, from Whitehall
Olga Lindo
Mrs. Humphries
Stanley Baker
Policeman at Garage
Russell Waters
Detective at Garage
Michael Balfour
American Sailor Promoting Book
Sam Kydd
Club steward
Ernest Clark
Lyonel Watts
Club Member
Crew
Edward Dmytryk
Director
Alec Coppel
Novel
Alec Coppel
Screenplay
Nat A. Bronstein
Producer
Nino Rota
Original Music Composer
C.M. Pennington-Richards
Director of Photography
Lito Carruthers
Editor
Duncan Sutherland
Art Direction
Betty Baugh
Hairstylist
Stuart Freeborn
Makeup Artist
Kenneth Horne
Production Manager
George Mills
Assistant Director
Kenneth Horne
Associate Producer
Ken Adam
Assistant Art Director
Jack Locke
Sound Recordist
Gordon K. McCallum
Sound Recordist
Winston Ryder
Sound Editor
Robert Day
Camera Operator
Louis Levy
Conductor
Barbara Cole
Continuity
Alec Coppel
Dialogue
Phil Brown
Dialogue Coach