Colonel Redl (German: Oberst Redl) is a 1925 Austrian silent drama film directed by Hans Otto and starring Robert Valberg, Eugen Neufeld and Harry Norbert. It portrays the career of the Austrian Army Officer Alfred Redl, exposed as a foreign agent shortly before the First World War. Cast Robert Valberg as Oberst Alfred Redl Eugen Neufeld as Oberst Ullmanitzky Harry Norbert as Oberstleutnant Jamischewicz Albert von Kersten as Major Wierenkoff Eugen Dumont as Kriegsminister Rußlands Dagny Servaes as Sonja Uraskow Ellen Reith as Hauptmann Erdmann's Braut Carlos Gerspach as Hauptmann Erdmann Louis Seeman as Gendarmerieoberst Boreff Julius Stärk as Auditor Mella Baffa Louis Erdmann References Bibliography Deborah Holmes & Lisa Silverman. Interwar Vienna: Culture Between Tradition and Modernity. Camden House, 2009. External links 1925 films 1920s spy drama films Austrian drama films Austrian silent feature films Films directed by Hans Otto Austrian black-and-white films Films set in Vienna Films set in the 1910s 1925 drama films Silent drama films