Bummer. I really liked his acting, and I was liking his role in this season's West Wing. Now I wonder how many episodes have been filmed and how much will have to change. NBC and producer Warner Bros. Television praised Spencer's talent but did not address how his death would affect the Emmy Award-winning series, in production on its seventh season.[Gainesville.com]
Kind of eerie after his onscreen heart attack near the beginning of last season (Season 6 episode 2, "The Birnam Wood").
Here's a PBS interview with Spencer about his role as Leo McGarry from 2000.