Oberst Alfred Redl heads the military intelligence department of the Austro-Hungarian monarchy. Frequent letters from the Russian Empire, however, make him suspect of sharing his knowledge with unauthorized authorities.
Ewald Balser
Oberst Redl
Barbara Rütting
Nadeschda
Gerhard Riedmann
Hauptmann Angelis
Oskar Werner
Leutnant Zeno von Baumgarten
Marte Harell
Gräfin Lichtenfels
Hannelore Bollmann
Pauline von Heymeneck
Rudolf Forster
Chef des Generalstabes, von Heymeneck
Attila Hörbiger
Dr. Hartmuth
