Hailing from Steubenville, Ohio, he grew up as the son of William Claude and Nellie McMillan, excelled on his high-school football team that captured the 1960 state title, earned a bachelor’s degree at Washington & Jefferson College and an MFA at Boston University before heading west in the 1970s to pursue acting. His screen debut arrived in 1972 with a lieutenant role in White Rat, followed by le…