Dr. Rolf Pedersen
Kirk Douglas
Knut Straud
Richard Harris
Professor Logan
Barry Jones
Nilssen
Ralph Michael
General Bolt
Geoffrey Keen
Doctor
Maurice Denham
Knippelberg
Wolf Frees
General Courts
Robert Ayres
Gunnar
Sebastian Breaks
Freddy
John Golightly
Oli
Alan Howard
Henrik
Patrick Jordan
Anna Pedersen
Ulla Jacobsson
Claus
William Marlowe
Einar
Brook Williams
Captain of "Galtesund"
David Davies
Hartmuller
Karl Stepanek
Woman on Bus
Faith Brook
Mrs. Sandersen
Elvi Hale
Erhardt
Gerard Heinz
German Sergeant
Victor Beaumont
Businessman
Philo Hauser
Sturmfuhrer
George Murcell
Uncle
Michael Redgrave
Mr. Sandersen
Russell Waters
Watchman in Factory
Jan Conrad
Girl Student (uncredited)
Annette Andre
Arne
David Weston
Major Frick
Anton Diffring
Terboven
Eric Porter
Col. Wilkinson
Mervyn Johns
Sigrid
Jennifer Hilary
Jensen
Roy Dotrice
Director
Anthony Mann
Original Music Composer
Malcolm Arnold
Screenplay
Ben Barzman
Director of Photography
Robert Krasker
Art Direction
Anthony Masters
Producer
Benjamin Fisz
Ivan Moffat
Novel
Knut Haukelid
John Drummond
Editor
Bert Bates
Casting
Maude Spector
Set Decoration
Robert Cartwright
Ted Clements
Special Effects
John P. Fulton
Second Unit Director
Egil S. Woxholt
Camera Operator
Production Supervisor
George Pitcher
Production Manager
Timothy Burrill
Location Manager
Jimmy Komisarjevsky
Continuity
Kay Mander
Sound Editor
Teddy Mason
Sound Recordist
Bill Daniels
Gordon K. McCallum
John Harris
Ronnie Maasz
John Burrows
Wardrobe Supervisor
Elsa Fennell
Makeup Artist
Neville Smallwood
Hairdresser
Maude Onslow
Stunt Coordinator
Gerry Crampton
Bill Kirby