|Spouse(s)||Gisela Peltzer, Marlies Dux|
His father was an Insurance executive. He completed his training as an actor with Else Bongers in Berlin and made his stage debut in 1948 at the city's Renaissance Theatre. He then had numerous roles on the Berlin stage and in theatres in Munich, Hamburg, Frankfurt and Stuttgart. He also had many roles as a character actor in film and television.
Since 1949 Dux he has also been one of the longest active German-speaking voice actors, dubbing Hollywood films into German. In the 1950s and 1960s he was regularly the German voice of Audie Murphy. He also dubbed Anthony Perkins in many roles including Psycho, Steve Martin, Fred Astaire, George Peppard (in the action series The A-Team) and Jerry Stiller. After Joachim Hoeppner died in 2006, he took over the dubbing of Ian McKellen as the wizard Gandalf. He dubbed David Jason as Rincewind in Terry Pratchett's The Colour of Magic. He has also worked as an actor and narrator on radio.
He was married to the actress Gisela Peltzer. He lives in Sassenburg and his current wife is the editor Marlies Dux.
- 2015: Benjamin Lebert: Mitternachtsweg, part of the series: Gruselkabinett, publisher: Titania Medien, ISBN 978-3-7857-5168-8