John Spencer
A legend of regional theatre long before he first appeared on television, talented character actor John Spencer was first renowned in New York circles for his electrifying performances onstage throughout the 1970's and 1980's - even winning the coveted Obie Award for his work in the 1981 off-Broadway production of "Still Life." But it was not until he made his on-screen debut in 1983's sci-fi thriller "WarGames" that landed on Hollywood's radar, culminating in a long career as a go-to TV series actor - most famously as White House chief of staff Leo McGarry on "The West Wing" (NBC, 1999-2006).