| Michael Caine | ... Harry Palmer |
| Karl Malden | ... Leo Newbigen |
|
| Co-Starring |
| Ed Begley, Sr. | ... Gen. Midwinter |
| Oskar Homolka | ... Col. Stok |
| Françoise Dorleac | ... Anya |
|
| With |
| Guy Doleman | ... Col. Ross |
| Vladek Sheybal | ... Dr. Eiwort |
| Milo Sperber | ... Basil |
| Paul Tamarin | ... Latvian Gangster |
| Janos Kurutz | ... Latvian Gangster |
| Alexei Jawdokimov | ... Latvian Gangster |
| Iza Teller | ... Latvian Gangster |
|
| Mark Elwes | ... Birkenshaw |
| Stanley Caine | ... G.P.O. Special Delivery Boy |
| Gregg Palmer | ... 1st Dutch Businessman |
| John Herrington | ... 2nd Dutch Businessman |
| Hans De Vries | ... 3rd Dutch Businessman |
| Fred Griffiths | ... Taxi Driver |
| John Brandon | ... Jim |
| Tony Harwood | ... Macey |
| Donald Sutherland | ... Scientist at Computer |
| Michael Stayner | ... Scientist |
| George Roubicek | ... Edgar |
| Brandon Brady | ... Chief of Security |
| Alex Marchevsky | ... Russian Radar Operator |
| Peter Forest | ... 2nd Russian Radar Operator |
| Reed De Rouen | ... 1st Observer |
| James Woolf | ... Caller |
| Miki Iveria | ... Russian Woman in Train |
| Susan George | ... Russian Girl on Train |
| Jill Mai Meredith | ... Russian Girl on Train |
| Dolly Brennan | ... Old Woman in Gangsters Hut |
| Frederick Schrecker | ... Old Man in Train |
| Bill Mitchell | ... Guard -- Ext. Midwinter's House |
| Steve Emerson | ... Russian Plainclothesman |
| Mark Moss | ... Russian Plainclothesman |
| Max Kirby | ... Shoe Shop Assistant |
