Grethe Sønck was born on July 16, 1929 in Hjerm, Denmark as Grethe Ingeborg Nielsen Hald. She was an actress, known for Naboerne (1966), Olsen-banden (1968) and Peters jul (2006). She was married to Volmer Sørensen and Hjalmar Nikolausson. She died on February 12, 2010 in Rågeleje, Denmark.