Elenco & Equipe de Postmark for Danger
Robert BeattyTim Forrester William SylvesterDave Forrester Josephine GriffinJill Stewart Geoffrey KeenInspector Colby Allan CuthbertsonHenry Carmichael Bruno BarnabeItalian Detective Stuart SaundersSgt. Haines Marianne StoneReceptionist Frank ThorntonPolice Photographer Raymond FrancisPolice Inspector - Interpol Division Sam KyddBill, the Telephone Engineer Robert Raglan(uncredited) Ian WilsonDorking's Customer (uncredited) Guy GreenRealizador / Escritor Tony OwenProdutor Executivo Wilkie CooperDirector Of Photography John VealeCompositor de Banda Sonora Original Francis Durbridgehistoria 
