His known roles include his Emmy-winning portrayal of Jim Jones in "" and his turns as TV detective Philip Marlowe in the 1980s, Cy Tolliver on "Deadwood", "Curly Bill" Brocious in "Tombstone", Gideon Malick in the Marvel Cinematic Universe, Vice-President and President Noah Daniels on "24", Lamar Wyatt in "Nashville", and the voice of Gorilla Grodd in the DC Animated Universe.