John Joseph Patrick Ryan (December 30, 1920 - January 21, 1998), best known by his stage name Jack Lord, was an American television, film, and Broadway actor. He was best known for his starring role as Steve McGarrett in the American television program "Hawaii Five-O" from 1968 to 1980. Lord also appeared in several classic feature films, among them "Man of the West" (1958) starring Gary Cooper. Wikipedia
The definitive Wikipedia entry for Jack Lord. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Jack_Lord