cast
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Michael Caine
Harry Palmer
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Karl Malden
Leo Newbigen
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Ed Begley
General Midwinter
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Oskar Homolka
General Stok
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Françoise Dorléac
Anya
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Guy Doleman
Colonel Ross
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Vladek Sheybal
Dr. Eiwort
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Milo Sperber
Basil
- Janos Kurutz Latvian Gangster
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Alexei Jawdokimov
Latvian Gangster
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Paul Tamarin
Latvian Gangster
- Izabella Telezynska Latvian Gangster
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Mark Elwes
Birkenshaw
- Stanley Caine GPO Special Delivery Boy
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Susan George
Russian Girl on Train
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Miki Iveria
Russian Woman on Train
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Jill Mai Meredith
Russian Girl on Train
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John Brandon
Jim
- Tony Harwood Macey
- Michael Stayner Scientist
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Donald Sutherland
Scientist at Computer
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George Roubicek
Edgar
- Brandon Brady Chief of Security
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Fred Griffiths
Taxi Driver
- Gregg Palmer 1st Dutch Businessman
- John Herrington 2nd Dutch Businessman
- Hans De Vries 3rd Dutch Businessman
- Alex Marchevsky Russian Radar Operator
- Peter Forest 2nd Russian Radar Operator
- Reed De Rouen Observer
- Frederick Schrecker Old Man on Train
- Dolly Brennan Old Woman in Gangster's Hut
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Bill Mitchell
Guard at Midwinter's House
- Max Kirby Shoe Shop Assistant
- Steve Emerson Russian Plainclothesman
- Mark Moss Russian Plainclothesman
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Gertan Klauber
Dr. Kaarna (uncredited)
- Harry Fielder Cowboy at Barndance (uncredited)