Wallace Michael "
Wally"
Shawn (born November 12, 1943) is an American actor, voice actor, playwright and essayist, best known for appearing in film roles, such as Wally Shawn in the
Louis Malle-directed comedy-drama
My Dinner with Andre (1981), Vizzini in
The Princess Bride (1987), Ezra in
The Haunted Mansion, providing the voice of
Rex in the
Toy Story franchise, providing the voice of
Gilbert Huph in
The Incredibles (2004), and providing the voice of Calico in
Cats & Dogs: The Revenge of Kitty Galore (2010). He also starred in a variety of television series, including
Gossip Girl and recurring appearances as
Grand Nagus Zek in
Star Trek: Deep Space Nine (1993–99).