John Spencer, I loved him on the West Wing. He died of a heart attack in a hospital 4 days before his 59th birthday. At the time of his death, Spencer had filmed two of the five West Wing episodes that were in post-production and his death was subsequently written into the show's seventh and final season, in which McGarry was said to have died of a heart attack on election night. December 20, 1946 - December 16, 2005
John Spencer was the kind of actor everyone knew from at least one TV show or film, as the smart and warm character. He scored a lead part in The West Wing, but died during filming from a heart attack in 2005, he was 58 at the time of his death and the show kept his name in the credits till the very end.