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

as Latvian Gangster

Paul Tamarin

as Latvian Gangster

Izabella Telezynska

as Latvian Gangster

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

as Russian Girl on Train

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

as Russian Plainclothesman

Gertan Klauber

as Dr. Kaarna (uncredited)

Harry Fielder

as Cowboy at Barndance (uncredited)