From Wikipedia, the free encyclopedia. Robby Benson (born January 21, 1956) is an American film and television actor, television director, educator and singer. Description above from the Wikipedia article Robby Benson, licensed under CC-BY-SA, full list of contributors on Wikipedia.​ He is best known for the films he's in Including Ice Castles 1978, Beauty and the Beast 1991 as the Beast. He also voiced Prince Alexander in King's Quest VI Heir Today Gone Tomorrow 1992.