The Voices Behind the 'Sesame Street' Puppets

Martin P. Robinson (shown here with Telly Monster) is best known for his role as Mr. Snuffleupagus, also known as Snuffy, which he has voiced since 1981. For his role as Snuffy, Robinson stands completely upright inside the puppet, which is built on a rattan framework and attached to a steadycam backpack. (Wendell Teodoro/WireImage/Getty Images)