Wallace Shawn

Wallace Michael Shawn is an American actor and comedian. He has appeared in several live-action films such as My Dinner With Andre, The Princess Bride, The Haunted Mansion and Clueless and his distinctive high-pitched voice has been used in a number of animated roles, including that of the neurotic dinosaur Rex in the Toy Story films.

He guest starred on Oliver and Company:The Series as Ernie.

He guest starred in The Quest for Beasts as pedantic science teacher Mr. Meeks.