Udo Kierspe (born October 14, 1944), known professionally as Udo Kier, is a German actor. Known primarily as a character actor, Kier has appeared in more than 220 films in both leading and supporting roles throughout Europe, Canada and the Americas. He has collaborated with acclaimed filmmakers such as Lars von Trier, Gus van Sant, Werner Herzog, Walerian Borowczyk, Kleber Mendonça Filho, Dario Argento, Charles Matton, Guy Maddin, Alexander Payne, and Paul Morrissey.

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