High Quality Content by WIKIPEDIA articles! Wallace Michael Shawn (born November 12, 1943), sometimes credited as Wally Shawn, is an American stand-up comedian, actor, writer, author, voice artist, and intellectual. His best-known film roles include Wally Shawn in My Dinner with Andre (1981), Vizzini in The Princess Bride (1987), and debate teacher Mr. Hall in Clueless (1995).