"A former British spy stumbles into in a plot to overthrow Communism with the help of a supercomputer. But who is working for whom?"
Michael Caine
as Harry Palmer
Karl Malden
as Leo Newbigen
Ed Begley
as General Midwinter
Oskar Homolka
as General Stok
Françoise Dorléac
as Anya
Guy Doleman
as Colonel Ross
Vladek Sheybal
as Dr. Eiwort
Milo Sperber
as Basil
Janos Kurutz
as Latvian Gangster
Alexei Jawdokimov
Paul Tamarin
Izabella Telezynska
Mark Elwes
as Birkenshaw
Stanley Caine
as GPO Special Delivery Boy
Susan George
as Russian Girl on Train
Miki Iveria
as Russian Woman on Train
Jill Mai Meredith
John Brandon
as Jim
Tony Harwood
as Macey
Michael Stayner
as Scientist
Donald Sutherland
as Scientist at Computer
George Roubicek
as Edgar
Brandon Brady
as Chief of Security
Fred Griffiths
as Taxi Driver
Gregg Palmer
as 1st Dutch Businessman
John Herrington
as 2nd Dutch Businessman
Hans De Vries
as 3rd Dutch Businessman
Alex Marchevsky
as Russian Radar Operator
Peter Forest
as 2nd Russian Radar Operator
Reed De Rouen
as Observer
Frederick Schrecker
as Old Man on Train
Dolly Brennan
as Old Woman in Gangster's Hut
Bill Mitchell
as Guard at Midwinter's House
Max Kirby
as Shoe Shop Assistant
Steve Emerson
as Russian Plainclothesman
Mark Moss
Gertan Klauber
as Dr. Kaarna (uncredited)
Harry Fielder
as Cowboy at Barndance (uncredited)
Ken Russell
Director
Len Deighton
Novel
Billy Williams
Director of Photography
Richard Rodney Bennett
Original Music Composer
Alan Osbiston
Editor
Syd Cain
Production Design
Bert Davey
Teddy Mason
Sound Director
John Brady
Costume Design
Shirley Russell
John McGrath
Screenplay
David Wynn-Jones
Assistant Camera
Ariel Levy
Assistant Director
Harry Saltzman
Producer
André de Toth
Executive Producer