Actor who became famous for his one-man show, Mark Twain Tonight, and for his title role in the Lincoln television series of the mid-1970s. He also appeared on such television programs as Pueblo and The Bold Ones: The Senator.
During World War II, he served in the United States Army.
He was nominated for an Academy Award for his work in Into the Wild.
He had a twenty-year marriage to Ruby Holbrook and a thirteen-year marriage to Carol Eve Rossen. He married Designing Women actress Dixie Carter in 1984.