AdvertisementJulia, A Muppet With Autism, Joins The Cast Of 'Sesame Street'March 20, 2017David FolkenflikfacebookEmailJulia (center) first appeared online and in printed materials as a part of Sesame Street's See Amazing in all Children initiative. She'll now appear on TV as well. From left, Elmo, Alan Muraoka, Julia, Abby Cadabby and Big Bird. (Sesame Workshop)