Some of the more established actors and young actors appeared on Hawaii Five-O over during its 12 year run 1968-1980. With the recent deaths of Henry Darrow, Jessica Walter, Yaphet Kotto, and others, I was curious who are the current oldest living HFO Alumni. Nehemiah Persoff is 1 that stands out from his appearances on the show. He's 101. Jack Hogan and Joanna Linville are some of my FAV actors I always liked. They are in their late 80's. I believe William Shatner recently turned 90. Can you think of some others?