Michael Ontkean is a Canadian actor, best known for his role as Sheriff Harry S. Truman in Twin Peaks. He reprised the role for Twin Peaks: Fire Walk with Me. but his scenes were cut, though they were later restored as part of Twin Peaks: The Missing Pieces.
He retired from acting in 2011 and didn't return for the revival of Twin Peaks which began airing in 2017. Robert Forster played the role of Harry's previously unseen and not mentioned brother Frank Truman, with Harry being referenced to several times.