William Rosenberg was born on February 12, 1920 in Copenhagen, Denmark as William Walt Rosenberg. He was an actor, known for En kvinde er overflødig (1957), Det evige spørgsmål (1962) and Fra den gamle Købmandsgaard (1951). He was married to Jette Kling Bech Christensen, Jeanne Darville and Helle Virkner.