 Michael CaineHarry Palmer | Harry Palmer |
 Karl MaldenLeo Newbigen | Leo Newbigen |
 Ed BegleyGeneral Midwinter | General Midwinter |
 Oskar HomolkaGeneral Stok | General Stok |
 Françoise DorléacAnya | Anya |
 Guy DolemanColonel Ross | Colonel Ross |
 Vladek SheybalDr. Eiwort | Dr. Eiwort |
 Milo SperberBasil | Basil |
| JJanos KurutzLatvian Gangster | Latvian Gangster |
 Alexei JawdokimovLatvian Gangster | Latvian Gangster |
 Paul TamarinLatvian Gangster | Latvian Gangster |
| IIzabella TelezynskaLatvian Gangster | Latvian Gangster |
 Mark ElwesBirkenshaw | Birkenshaw |
| SStanley CaineGPO Special Delivery Boy | GPO Special Delivery Boy |
 Susan GeorgeRussian Girl on Train | Russian Girl on Train |
 Miki IveriaRussian Woman on Train | Russian Woman on Train |
 Jill Mai MeredithRussian Girl on Train | Russian Girl on Train |
 John BrandonJim | Jim |
| TTony HarwoodMacey | Macey |
| MMichael StaynerScientist | Scientist |
 Donald SutherlandScientist at Computer | Scientist at Computer |
 George RoubicekEdgar | Edgar |
| BBrandon BradyChief of Security | Chief of Security |
 Fred GriffithsTaxi Driver | Taxi Driver |
| GGregg Palmer1st Dutch Businessman | 1st Dutch Businessman |
| JJohn Herrington2nd Dutch Businessman | 2nd Dutch Businessman |
| HHans De Vries3rd Dutch Businessman | 3rd Dutch Businessman |
| AAlex MarchevskyRussian Radar Operator | Russian Radar Operator |
| PPeter Forest2nd Russian Radar Operator | 2nd Russian Radar Operator |
| RReed De RouenObserver | Observer |
