Geoffrey Richter-Douglas
Michael York
Erika Altschul
Elke Sommer
Blinker Hall
Richard Hurndall
Meier
John Gill
Cockney Sergeant
Michael Robbins
Jamie Fergusson
Ben Howard
German Officer
George Mikell
Major Proudfoot
Arnold Diamond
Lord Delford
Clive Morton
Colonel Whippen
Bryan Coleman
Harlich
Gary Waldhorn
Prime Minister
Ronald Adam
Major Tauntler
Peter Carsten
Radio Operator
Frazer Hines
Mrs. Parker
Ruth Kettlewell
Sgt. Grant
Ray Lonnen
Professor Christian Altschul
Marius Goring
Colonel Hirsch
Anton Diffring
Von Gorian
Andrew Keir
Captain Whitney
Rupert Davies
Stephanie
Alexandra Stewart
Anderson
William Marlowe
Brandner
Alan Rothwell
Director
Étienne Périer
Screenplay
Donald Churchill
Executive Producer
J. Ronald Getty
Special Effects Supervisor
Gerry Johnston
Assistant Director
Kip Gowans
Makeup Supervisor
Neville Smallwood
Construction Manager
Charles Hammerton
Production Manager
Claude Hudson
Wardrobe Supervisor
Brenda Dabbs
Hairdresser
Colin Jamison
Continuity
Rita Davison
Special Effects
Charles Staffell
Second Unit Cinematographer
Brian West
Original Music Composer
Roy Budd
Casting Director
Lesley De Pettit
Location Manager
Bernard Hanson
Additional Camera
Cliff Culley
Conductor
Finance
Herbert G. Luft
Wally Veevers
Technical Advisor
Friedrich Sturm
Art Direction
Bert Davey
Set Decoration
Arthur Taksen
Sound Editor
Vernon Messenger
Costume Design
Sue Yelland
Camera Operator
Ginger Gemmel
Arthur Rowe
Story
Owen Crump
Director of Photography
Alan Hume
Producer
Editor
John Shirley
Derek V. Browne
Cliff Richardson
Les Wiggins
Sound Recordist
C. Le Mesurier
Gordon Everett