Hal Holbrook performed his one-man show Mark Twain Tonight for more than sixty years, winning a Tony for it, which is probably the longest a single actor has inhabited one historical figure.
On screen he specialised in men of quiet institutional authority, in All the President’s Men as Deep Throat, in The Fog, and in Magnum Force.
He was nominated for Best Supporting Actor at eighty-two for Into the Wild, becoming the oldest nominee in that category at the time, for a performance of about fifteen minutes.
He worked heavily in television and continued acting into his nineties.