Kenneth Allen "Kenny" Johnson (born July 13, 1963) is an American actor, producer, and model. He is known for his roles as Detective Curtis Lemansky in The Shield, Butch "Burner" Barnes in Pensacola: Wings of Gold, Detective Ham Dewey in Saving Grace, Herman Kozik in Sons of Anarchy, Matt Webb in Prime Suspect, and Caleb Calhoun in Bates Motel. Johnson currently portrays Dominic Luca in the CBS drama series S.W.A.T..