Robert Thorn is the hero of the 1976 horror movie, The Omen. He was played by the late Gregory Peck. He was Damien Thorn's adoptive dad and the CEO of Thorn Industries. Robert was one of the sons of Reginald Thorn and inherited a lot of money from him. He and his brother Richard Thorn, both went to Davidson Military Academy in Chicago, IL. Robert was an athlete as well and was the quarterback for the academy's rugby team.