Friedrich Hans Ulrich Mühe (German pronunciation: [ˈʊlʁɪç ˈmyːə] (listen); 20 June 1953 – 22 July 2007) was a German film, television and theatre actor. He played the role of Hauptmann (Captain) Gerd Wiesler in the Oscar-winning film Das Leben der Anderen (The Lives of Others, 2006), for which he received the gold award for Best Performance by an Actor in a Leading Role, at the Deutscher Filmpreis (German Film Awards); and the Best Actor Award at the 2006 European Film Awards. After leaving school, Mühe was employed as a construction worker and a border guard at the Berlin Wall. He then turned to acting, and from the late 1970s into the 1980s appeared in numerous plays, becoming a star of the Deutsches Theater in East Berlin. He was active in politics and denounced Communist rule in East Germany in a memorable address at the Alexanderplatz demonstration on 4 November 1989 shortly before the fall of the Berlin Wall. After German reunification he continued to appear in a large number of films, television programmes and theatre productions. In Germany he was particularly known for playing the lead role of Dr. Robert Kolmaar in the long-running forensic crime series Der letzte Zeuge (The Last Witness, 1998–2007).