William Rosenberg was born on February 12, 1920 in Copenhagen, Denmark as William Walt Rosenberg. He was an actor, known for Min søsters børn, når de er værst (1971), Min søsters børn (1966) and Min søsters børn vælter byen (1968). He was married to Jette Kling Bech Christensen, Jeanne Darville and Helle Virkner. He died on November 6, 2014 in Lyngby, Copenhagen.
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