Behind the camera
- 2023Once Upon a Time in TsavoExecutive Producer2 ep.
- 2017The Lions RuleProducer3 ep.
- 2014Wild CanadaExecutive Producer4 ep.
- 2007Ol' Man River: The Mighty MississippiExecutive Producer2 ep.
- 2006Nature TechProducer3 ep.
- 2005Terra X: Der KontinentAuthor, Writer4 ep.
- 2005Europe: A Natural HistoryExecutive Producer4 ep.
- 2005Wild EuropeExecutive Producer4 ep.
Also known as: Walter Koehler · Walter Kohler