Lorne Hyman Greene (born Lyon Himan Green; 12 February 1915 – 11 September 1987) was a Canadian actor, musician, singer and radio personality. His notable television roles include Ben Cartwright on the Western Bonanza and Commander Adama in the original science-fiction television series Battlestar Galactica and Galactica 1980. He also worked on the Canadian television nature documentary series Lorne Greene's New Wilderness and in television commercials.

Source: Wikipedia (https://en.wikipedia.org/wiki/Lorne_Greene)