“[He] lent his burly frame and Texas drawl to numerous TV series beginning in the late 1970s. In addition to the acclaimed HBO series Deadwood, he was seen on shows including Agents of S.H.I.E.L.D., Nashville and 24, on which he played the vice president of the United States. Among the movies in which he appeared were Red Dawn (1984) … Oliver Stone’s Nixon (1995), in which he played Alexander Haig. He won an Emmy in 1980 … for his performance as the leader of the Jonestown cult in the mini-series Guyana Tragedy: The Story of Jim Jones.”