Dick Shawn

Richard Schulefand, known professionally as Dick Shawn , was an American actor and comedian. He played a wide variety of supporting roles and was a prolific character actor. He was well known during the 1960s for small but iconic roles in madcap comedies, usually portraying caricatures of counter culture personalities, such as the deadbeat son in Its a Mad, Mad, Mad, Mad World and the hippie actor L.S.D. in The Producers.

Shawn was born in Buffalo, New York and raised in adjacent Lackawanna. The best remembered roles of his career are the hotheaded Sylvester Marcus, son of Mrs. Marcus , in Stanley Kramers Its a Mad, Mad, Mad, Mad World and easygoing Lorenzo St. DuBoisAdolf Hitler in the musical Springtime for Hitler, the play within Mel Brookss movie The Producers . He also provided the Snow Misers voice in The Year Without a Santa Claus.

Source: Wikipedia