SINOPSIS
Vlassov (Yul Brynner) is a Soviet spy. In France, Vlassov defects. He is whisked to the U.S.A., where Allan Davies (Henry Fonda) takes over the case. After polygraph tests and cross-examinations, Vlassov names several Western European agents who are also spying for the Soviets. Davies wants to take the listed agents into custody; meanwhile, those on the list start dying under mysterious circumstances.
- Yul BrynnerCol. Alexei Vlassov
- Henry FondaAllan Davies
- Dirk BogardePhilip Boyle
- Philippe NoiretLucien Berthon
- Michel BouquetTavel
- Virna LisiAnnabel Lee
- Guy TréjanRobert Deval
- Elga AndersenKate Cross
- Marie DuboisSuzanne Walter
- Nathalie NervalTatiana Vlassov
- André FalconFrench Diplomat
- Robert PartyDebecourt
- William SabatierMercadier - Foreign Affairs official
- Robert AldaPolygraph interrogator
- Paola PitagoraJeannine Santelli
- Luigi DibertiLefèvre
- François MaistreInspector Joss - Airport Police
- Thomas Hunter
- Larry DolginAron Atamian
- Igor De Savitch
- Herbert FuxGardener
- Eva Maria MeinekeFrau von Streilitz
- Alan Scott
- Martin HeldLepke
- Farley GrangerComputer Programming Director