From Wikipedia, the free encyclopedia. Bruce William Boxleitner (born May 12, 1950) is an American actor, and science fiction and suspense writer. He is known for his leading roles in the television series How the West Was Won, Bring Em Back Alive, Scarecrow and Mrs. King (with Kate Jackson), and Babylon 5 (as John Sheridan in seasons 2–5, 1994–1998). He is also known for his role as the eponymous character of the innovative Walt Disney Pictures film Tron, a role which he reprised in the 2010 sequel, Tron: Legacy. Description above from the Wikipedia article Bruce Boxleitner, licensed under CC-BY-SA, full list of contributors on Wikipedia.