Christopher Plummer
Freddie Chapman
Romy Schneider
Helga Lindstrom (The Countess)
Trevor Howard
Freddie Young (Distinguished Civilian)
Gert Fröbe
Colonel Steinhager
Claudine Auger
Paulette
Yul Brynner
Baron von Grunen
Harry Meyen
Lieutenant Keller
Georges Lycan
Leo
Jess Hahn
Commander Braid
John Abbey
Lang
Paul Bonifas
Charlie
Jean-Roger Caussimon
Luftwaffe General (as Jean Rene Caussimon)
Jean Claudio
Sergeant Thomas
Pierre Collet
German Warder
Anthony Dawson
Major Stillman
Georges Douking
Polish Interrogator
Colin Drake
English Farmer
Robert Favart
General Dalrymple
Bernard Fresson
French Resistant Raymond
Gisèle Grimm
Major Lawrence
Harvey Hall
Detainee Center Sergeant
Clément Harari
Losch
Jacques Harden
Canadian Prisoner
David Hutcheson
Ministry Official
Marcel Journet
Marshall von Runstedt
Robert Le Béal
Lieutenant Cameron
Violette Marceau
Prisoner Girl
Guy Marly
Luftwaffe Officer
Charles Millot
2nd Polish Interrogator
Hubert Noël
Von Runstedt's Aide de Camp
Jean Ozenne
Gal Von Langsdorf
Albert Simono
B.B.C. Reporter
Michel Thomass
3rd Polish Interrogator
Edward Underdown
Air Marshall
François Valorbe
S.S. Commandant
Van Doude
Plotting Officer
Howard Vernon
German Embassy Official
Francis de Wolff
German Colonel General
Jean-Pierre Zola
Jersey Prison Commandant
Jean-Marc Bory
Resistance Leader (uncredited)
Gordon Jackson
British Sergeant Questioning Chapman (uncredited)
Laure Paillette
Old Lady (uncredited)
Robert Rietti
B.B.C. Reporter (voice) (uncredited)
Sylvia Sorrente
Hostess in the Club (uncredited)
