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
Nino Rota
Original Music Composer
Edward Dmytryk
Director
Alec Coppel
Novel
Lito Carruthers
Editor
Nat A. Bronstein
Producer
Alec Coppel
Screenplay
C.M. Pennington-Richards
Director of Photography
Betty Baugh
Hairstylist
Duncan Sutherland
Art Direction
Stuart Freeborn
Makeup Artist
George Mills
Assistant Director
Kenneth Horne
Production Manager
Louis Levy
Conductor
Alec Coppel
Dialogue
Ken Adam
Assistant Art Director
Winston Ryder
Sound Editor
Phil Brown
Dialogue Coach
Kenneth Horne
Associate Producer
Gordon K. McCallum
Sound Recordist
Robert Day
Camera Operator
Barbara Cole
Continuity
Jack Locke
Sound Recordist