Yul Brynner
Col. Alexi Vlassov
Henry Fonda
Alan Davies
Dirk Bogarde
Philip Boyle
Virna Lisi
Mrs. Annabel Lee
Robert Alda
Polygraph interrogator
Farley Granger
Computer Programming Director
Philippe Noiret
Lucien Berthon
Michel Bouquet
Tavel
Martin Held
Lepke
Guy Tréjan
Deval
Marie Dubois
Suzanne
Elga Andersen
Kate Cross
André Falcon
French Diplomat
William Sabatier
Mercadier
François Maistre
inspecteur Joss
Paola Pitagora
Jeannine Santelli
Herbert Fux
Gardener
Eva Maria Meineke
Mrs von Strelitz
Luigi Diberti
Lefèvre
Robert Party
Debecourt
Jean Desailly
Narrator (voice) (uncredited)
Nathalie Nerval
Tatiana Vlassov
