Wallace Shawn (born 1943) is an American actor and playwright known for his distinctive film career. Celebrated for his high-pitched voice and roles as nervous or eccentric intellectuals, he has an unmistakable screen presence.

His most representative film is *My Dinner with Andre* (1981), which he also co-wrote and starred in, a philosophical dialogue that defined his image. He gained widespread popularity as the unforgettable Vizzini in *The Princess Bride* (1987), with his iconic exclamation "Inconceivable!".

Shawn lent his voice to the dinosaur Rex in the *Toy Story* franchise and numerous other animated characters. He is a recurring face in Woody Allen's films (*Manhattan*, *Radio Days*) and has played memorable roles in *Clueless* (1995) and *Vanya on 42nd Street* (1994). His ability to embody complex and often ironic characters makes him a unique figure in the Hollywood landscape.