Jeffrey Dean Morgan (born April 22, 1966) is an American actor. He is known for his roles as John Winchester on the fantasy horror series Supernatural (2005 -- 07), Denny Duquette on the medical drama series Grey 's Anatomy (2006 -- 09), The Comedian in the superhero film Watchmen (2009), Jason Crouse on the political drama series The Good Wife (2015 -- 16), Negan on the horror drama series The Walking Dead (2016 -- present), and Harvey Russell in Rampage (2018).
who plays jason the investigator on the good wife
Jeffrey Dean Morgan