Sesame Street' Introduces Julia, a Muppet With Autism 'Sesame Street' Introduces Julia, a Muppet With Autism Julia, a 4-year-old 'Sesame Street' Muppet with autism, debuts on the show as a ...

"Sesame Street" has had plenty of surprising guest stars over the years, from Katy Perry doing a duet with Elmo to Tina Fey playing a book-loving pirate to Joe Pesci showing up as land developer ...