<Tr> <Th> Partner (s) </Th> <Td> Mary - Louise Parker (2006--08) Hilarie Burton (2009--present) </Td> </Tr> <Tr> <Th> Children </Th> <Td> </Td> </Tr> <P> Jeffrey Dean Morgan (born April 22, 1966) is an American actor . He is known for playing John Winchester on Supernatural, Denny Duquette on the medical drama Grey's Anatomy, The Comedian in the 2009 superhero film Watchmen, Jason Crouse on The Good Wife, and Negan on The Walking Dead . </P> <P> Morgan was born in Seattle, Washington to Sandy Thomas and Richard Dean Morgan . He attended Ben Franklin Elementary School, Rose Hill Junior High, and Lake Washington High School in Kirkland, Washington, where he played football and captained the basketball team . He went on to play basketball at Skagit Valley College before being sidelined by an injury . </P>

Who is the actor who plays denny on grey's anatomy