<Tr> <Th> Parent (s) </Th> <Td> <Ul> <Li> William Shawn </Li> <Li> Cecille Shawn </Li> </Ul> </Td> </Tr> <Ul> <Li> William Shawn </Li> <Li> Cecille Shawn </Li> </Ul> <P> Wallace Michael Shawn (born November 12, 1943) is an American actor, voice actor, comedian, playwright and essayist . His film roles have included those of Wally Shawn in the Louis Malle directed comedy - drama My Dinner with Andre (1981), Vizzini in The Princess Bride (1987), Mr. Wendell Hall in Clueless (1995) and providing the voice of Rex in the Toy Story franchise . He has also appeared in a variety of television series, including recurring roles as Grand Nagus Zek in Star Trek: Deep Space Nine (1993--1999) and Cyrus Rose in Gossip Girl (2008--2012). </P> <P> His plays include Obie Award winning Aunt Dan and Lemon (1985), The Designated Mourner (1996) and Grasses of a Thousand Colors (2008). He also co-wrote the screenplay for My Dinner with Andre with Andre Gregory, and he scripted A Master Builder (2013), a film adaptation of the play by Henrik Ibsen, which he also starred in . His book Essays was published in 2009 by Haymarket Books . </P>

Who played the grand nagus on deep space nine