Career
He later developed several new characters on Muppets Tonight, including Pepe the King Prawn, Johnny Fiama and Bobo the Bear. Along with having his own Muppet characters, Bill has taken over several of Jim Henson"s roles, such as Doctor Teeth, Rowlf the Dog, Mahna Mahna and Swedish Chef, and briefly took over Jerry Nelson"s role of Lew Zealand. His film debut as a principal puppeteer was in 1996"s Muppet Treasure Island as Clueless Morgan.
In addition, Bill has produced two of the Muppets" television films, lieutenant"s a Very Merry Muppet Christmas Movie and The Muppets" Wizard of Ounces
Bill also provides additional voices on Kim Possible. He is a native of Yardley, Pennsylvania.
His most recent performance was in Disney"s Muppets Most Wanted, where he also served as a co-producer on the film. Barretta also serves as an executive producer on the American Broadcasting Company series, The Muppets.
Bill is the younger brother of the children"s book author and illustrator, Gene Barretta.
Bill attended Saint Mary"s Hall-Doane Academy in Burlington, New Jersey, eventually becoming a carpenter. Bill met Brian Henson while they were both working at Sesame Place.