Jeffrey Dean Morgan (born April 22, 1966) is an American actor. He is best known for portraying Denny Duquette in the 2005 medical drama Grey’s Anatomy, John Winchester on Supernatural, The Comedian in the 2009 superhero film Watchmen, and Ike Evans in Magic City.
Starting with the 1991 film Uncaged, Morgan has appeared in 15 feature films. The bulk of Morgan’s work has been in television. He was the star of the 1996–1997 television series The Burning Zone; his character, Dr. Edward Marcase, appeared in 10 out of 19 episodes that season. Since 2000, he has amassed a number of credits in television series such as ER, JAG, Walker, Texas Ranger, Angel, Supernatural, CSI: Crime Scene Investigation, Sliders, The O.C., and Monk. In 2005 and 2006, Morgan simultaneously appeared in three separate television series: on the CW series Supernatural as John Winchester, in a recurring role on ABC’s Grey’s Anatomy as heart transplant patient Denny Duquette, and as Judah Botwin in two episodes of the Showtime series Weeds.