沃尔特·西特勒，Walter Sittler was born on December 5, 1952 in Chicago, Illinois, USA. He is an actor and producer, known for Freundschaft mit Herz (1995), Nikola (1997) and EuroTrip (2004). He has been married to Sigrid Klausmann-Sittler since May 29, 1985. They have three children.