​From Wikipedia, the free encyclopedia.   Jay Karnes (born June 27, 1963) is an American actor, born in Omaha, Nebraska. He attended the University of Kansas (class of '89). He is well known for his role as L.A.P.D. Det. Holland "Dutch" Wagenbach on the FX hit drama The Shield, which finished its seventh (and final) season on November 25, 2008. In 2008 Karnes played the recurring role of ATF Agent Josh Kohn on FX Network's new original series Sons of Anarchy, created by writer/actor Kurt Sutter ...