 He appeared in "The Tunnel", a made-for-television German film about the idea of going underground by digging a tunnel shortly after the construction of the Berlin wall in 1961, and in Peter Keglevic’s historical drama "Two Days of Hope" about the uprising on June 17, 1953.Koch appeared in "Stauffenberg" (2004 by Jo Baier and winner of the German Film Award); and he played Albert Speer in Heinrich Breoler’s mini series "Speer und Er" in 2004 - his third collaboration with the director following "Todesspiel" and "The Manns – A Novel of the Century".He received for his performance as the Nazi architect Albert Speer the German TV Award.