Harold Pelham
Roger Moore
Tony Alexander
Anton Rodgers
Barton
Edward Chapman
Mason
Laurence Hardy
Jameson
Charles Lloyd Pack
Morrison
Gerald Sim
Research Scientist
Aubrey Richards
Sir Arthur Richardson
Anthony Nicholls
Ashton
John Carson
Barber
John Dawson
Michael
Alastair Mackenzie
Julia Anderson
Olga Georges-Picot
Dr. Harris
Freddie Jones
James Pelham
Hugh Mackenzie
Luigi
Kevork Malikyan
Frank Bellamy
Thorley Walters
Miss Bird
Ruth Trouncer
Eve Pelham
Hildegard Neil
Sir Charles Freeman
John Welsh
Director
Basil Dearden
Executive Producer
Screenplay
Producer
Michael Relph
Bryan Forbes
Original Music Composer
Michael J. Lewis
Director of Photography
Tony Spratling
Editor
Teddy Darvas
Associate Producer
Jack Rix
Casting
G. B. Walker
Art Direction
Albert Witherick
Hairdresser
Barbara Ritchie
Makeup Artist
George Blackler
John Webber
Costume Designer
Beatrice Dawson
Novel
Anthony Armstrong