Dirk BogardeSir Mark Loddon / Frank Welney / Number Fifteen Olivia de HavillandLady Margaret Anne Loddon Paul MassieJeffrey Buckenham Wilfrid Hyde-WhiteHubert Foxley Anthony DawsonGerald Loddon Ivan SamsonAdmiral Loddon Sebastian SavilleMichael Loddon Richard PearsonThe Butler Robert ShawFirst Photographer Geoffrey BayldonSecond Photographer Arthur HowardCar Salesman Josephine MiddletonMrs. Squire Vanda HudsonGirl in Street Victor HarringtonBarrister (uncredited) Sam KyddNewspaper Vendor (uncredited) Reg ThomasonBarrister (uncredited) Anatole de GrunwaldManus / Produsent Pierre RouveAssosierende produsent Paul SheriffArt Direction Robert KraskerDirector Of Photography Christian DiorCostume Design Joan JohnstoneHairstylist David MiddlemasAssisterende regissør Robert CarrickSound Editor A.W. WatkinsSound Recordist Gerry TurnerSound Recordist Roy ParkinsonExecutive In Charge Of Production Edward WoollOriginal Story 
