Richard Burton

Alec Leamas

Claire Bloom

Nancy 'Nan' Perry

Oskar Werner

Fiedler

Sam Wanamaker

Peters

George Voskovec

Comrade Karden - Defense Attorney

Rupert Davies

George Smiley

Cyril Cusack

Control

Peter van Eyck

Hans-Dieter Mundt

Michael Hordern

Ashe

Robert Hardy

Dick Carlton

Bernard Lee

Patmore

Beatrix Lehmann

Tribunal President

Esmond Knight

Old Judge

Tom Stern

CIA Agent

Niall MacGinnis

Checkpoint Charlie Guard

Scot Finch

German Guide

Anne Blake

Miss Crail

George Mikell

Checkpoint Charlie Guard

Richard Marner

Vopo Captain

Warren Mitchell

Mr. Zanfrello

Steve Plytas

East German Judge

Graham Armitage

Pawson (uncredited)

David Bauer

Young Judge (uncredited)

Richard Caldicot

Mr. Pitt - Employment Officer (uncredited)

Marianne Deeming

Frau Floerdke (uncredited)

Walter Gotell

Holten (uncredited)

Edward Harvey

Man in Shop (uncredited)

Geoffrey Keen

British Sentry (Sgt.) at Checkpoint Charlie (uncredited)

Katherine Keeton

Pussywillow Club Stripper (uncredited)

Philip Madoc

Young German Officer (uncredited)

Henk Molenberg

Dutch Customs Officer (uncredited)

Nancy Nevinson

Mrs. Zanfrello - Grocery Customer (uncredited)

John Quentin

Pawson (uncredited)

Michael Ripper

Lofthouse - Library Assistant (uncredited)

Michael Rittermann

Security Officer (uncredited)

Richard Shaw

Guard (uncredited)

Terry Yorke

Karl Riemeck (uncredited)