John Kennedy is an American puppeteer known for his work with The Jim Henson Company since 1990. He was born in Plainfield, Indiana. In 1991, Kennedy succeeded Henson in the role of Dr. Teeth, after which Bill Barretta took over in 2005. In 2006, he performed Kermit the Frog on the Disney Cruise Line show, Muppets Ahoy! Wikipedia