William Paul "Bill" Barretta
is an American puppeteer and producer, who has been performing with the Muppets and The Jim Henson Company since 1991
His first big break came when he performed the body of Earl Sinclair on Dinosaurs.
He soon rose in the ranks to become one of the leading Muppet performers, performing such characters as Clueless Morgan, Pepe the King Prawn, Johnny Fiama, Bobo the Bear, and Big Mean Carl, as well as bringing life back to Jim Henson's roles of Dr. Teeth, Mahna Mahna, Rowlf the Dog, and The Swedish Chef.
He also did Jackie "the Jackal" Oaks and other additional voices for the Disney Channel animated series Kim Possible.