Claus Theo Gärtner (born 19 April 1943) is a German television actor mainly known for his role as Josef Matula, the main character in the German detective show series Ein Fall für Zwei (A Case For Two).

Gärtner spent his youth in Austria, the United States and southeastern Asia.

On 20 September 2008 he married his fiancée Sarah Würgler, 35 years his junior, in Winterthur.

Prior to their wedding, Claus Theo and Sarah had been in a relationship for 6 years.

This article about a German television actor is a stub.