 Dirk BogardeNicholas Whistler | Nicholas Whistler |
 Sylva KoscinaVlasta Simoneva | Vlasta Simoneva |
 Robert MorleyCol. Cunliffe | Col. Cunliffe |
 Leo McKernSimoneva | Simoneva |
 Roger DelgadoJosef | Josef |
 Derek FowldsSun Bathing Man | Sun Bathing Man |
 Eric PohlmannGolushha | Golushha |
 John Le MesurierRoger Allsop | Roger Allsop |
 Noel HarrisonJohnnie | Johnnie |
| AAmanda GrinlingCunliffe’s Secretary | Cunliffe’s Secretary |
 Philo HauserVicek | Vicek |
 John JunkinClerk in Opening Scene | Clerk in Opening Scene |
 Jill MelfordLorna | Lorna |
 Derek NimmoFred | Fred |
 Richard VernonRoddinghead | Roddinghead |
 Brook WilliamsLeon | Leon |
 Gertan KlauberTechnician in Czech Glass Factory | Technician in Czech Glass Factory |
 Richard PascoPlakov | Plakov |
 Alan TilvernSimenova's Assistant | Simenova's Assistant |
 Norman BirdEmployment Exchange Clerk | Employment Exchange Clerk |
 Andre CharisseWaiter | Waiter |
 Frank FinlayBritish Embassy Porter | British Embassy Porter |
| SSandra HamptonRussian Dancer | Russian Dancer |
 Harriet MedinHotel Receptionist | Hotel Receptionist |
 William MervynPassenger on Plane | Passenger on Plane |
 Tiberio MitriThe Milkman | The Milkman |
 George PravdaPravelko | Pravelko |
 Robert RiettiNot listed | Not listed |
 John StandingMen's Room Attendant | Men's Room Attendant |
| EEddie BoyceMan in Labour Exchange | Man in Labour Exchange |
