Johan Siefken was born on April 11, 1978 in Weert, the Netherlands to Riet (Heijbers) a medical analyst, and Roland Siefken a primary school teacher. His mother is from Dutch descent. His father has Dutch, German and Indonesian (former Dutch-Indies) ancestry. He is an actor known for Wittte Wolken (2013), Daglicht (2013) and Mannenharten(2013).