He had roles in a great number of TV series and movies, among them e.g. in Der Alte, Derrick, Das Traumschiff, Siska and Tatort.
Wiedemann moved away from comedy and took guest stints in crime shows like Derrick, Der Alte und Tatort.
Der Spiegel | Der Rosenkavalier | Der Ring des Nibelungen | Rotenburg an der Fulda | Spittal an der Drau | Limburg an der Lahn | Weiden in der Oberpfalz | Dillingen an der Donau | Van der Graaf Generator | Kirchdorf an der Krems | Der Freischütz | Befehlshaber der U-Boote | Serena van der Woodsen | Rothenburg ob der Tauber | Oberkommando der Wehrmacht | Neustadt an der Orla | Neukirch an der Thur | Der Vampyr | Realencyclopädie der Classischen Altertumswissenschaft | Neuberg an der Mürz | Ludwig Mies van der Rohe | Brandenburg an der Havel | Bad Homburg vor der Höhe | Theater an der Wien | Schönenberg an der Thur | Rogier van der Weyden | Neustadt an der Weinstraße | Neumarkt in der Oberpfalz | Neuburg an der Donau | Melissa Auf der Maur |
To many, the opening lines of Hölty's poem "Der alte Landmann an seinen Sohn" ("The Old Farmer to His Son") are the very embodiment of all Prussian virtues.
Set in the middle of the twenty-first century, The Simulacra is the story of several protagonists within the United States of Europe and America (USEA), formed by the merger of (West) Germany and the United States, where the whole government is a fraud and the President (der Alte, "the Old Man") is a simulacrum (android).