<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. James 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> 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. James 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>
who played the grand nagus in deep space nine
who played the grand nagus in deep space nine
Wallace Michael Shawn
Wallace Michael Shawn