Alf Marholm was born on 31 May 1918 in Oberhausen, Germany. He was an actor, known for Der Idiot (1968), Merkwürdige Lebensgeschichte des Friedrich Freiherrn von der Trenck (1973) and The Black Forest Hospital (1985). He was married to Christel. He died on 24 February 2006 in Königswinter-Ittenbach, North Rhine-Westphalia, Germany.