From Wikipedia, the free encyclopedia. Kerwin Mathews (January 8, 1926 – July 5, 2007) was an American actor best known for playing the titular heroes in The 7th Voyage of Sinbad (1958), The Three Worlds of Gulliver (1960) and Jack the Giant Killer (1962). Description above from the Wikipedia article Kerwin Mathews, licensed under CC-BY-SA, full list of contributors on Wikipedia.