Lorne Greene (February 12, 1915 – September 11, 1987)

Greene was a Canadian actor and musician who is best known for his
television roles as Ben Cartwright on the NBC-TV series Bonanza from
1959 to 1973 and as Commander Adama on the the ABC-TV series
Battlestar Galactica, 1978 to 1979.

Lorne Green gave up a career in chemical engineering and, upon
graduation from college, found a job as a radio broadcaster for the
Canadian Broadcasting Corporation (CBC)

Greene in Battlestar Galactica