Actor John Spencer. He plays Leo McGarry, the Chief of Staff to the President in the tv series "The West Wing." The show, set in the Whitehouse, and concerning a fictional democratic President and his staff has just won a prestigious George Peabody award. In this first season of the show, Spencer's character has had to deal with his former alcoholism becoming a matter of public scrutiny. Spencder previously was a regular on "L.A. Law" and began his career on "The Patty Duke Show."