Dirk Bogarde

as Simon Van Halder

Mai Zetterling

as Anna DeBurg

Philip Friend

as Capt. Bob Sawyer

Albert Lieven

as Paul Ravitch, alias Schleger

Fritz Wendhausen

as Warder Goeter

Carl Jaffe

as Cellblock Guard Becker

Gerard Heinz

as German Prison Doctor

Andre Mikhelson

as Polizei Inspector

Harold Ayer

as Capt. Trevor Wood, U.S. Army

Walter Gotell

as Ravitch's Servant-Henchman

Friedrich Joloff

as Valentin Vladek, alias Winter

Simone Silva

as Mink, Valentin's girl

Theodore Bikel

as Anton

Ferdy Mayne

as Berlin detective

Walter Rilla

as Colonel Bertrand

Paul Hardtmuth

as Ship's Watchman

Vernon Morris

as German boy