The Muppet Show (comics) Slim Wilson, Statler and Waldorf, Pigs, Penguins, Rizzo the Rat, Seymour the Elephant, Foo-Foo, Sweetums, Link Hogthrob, Dr. Julius Strangepork, Clueless Morgan, Catgut the Cat from "The Muppet Musicians of Bremen", Leroy the Donkey from "The Muppet Musicians of Bremen", T.R. the Rooster from "The Muppet Musicians of Bremen", Rover Joe the Dog from "The Muppet Musicians of Bremen", Mahna Mahna, the Snowths, Beauregard, Bunsen Honeydew, Beaker, Gaffer the Cat, Sir Cumnavigate, Teporter, Sir Mount, Crickets, Geri and the Atrics, Baskerville the Hound, Sir Render, Susan Boil, Swedish Chef, Sal Minella, Bobo the Bear, Hilda, Mildred Huxtetter, Angel Marie, Doglion,
The Muppets' Wizard of Oz the initial script was written, ultimately deciding to adapt plot elements from Baum's original novel rather than the 1939 Metro-Goldwyn-Mayer musical film, "The Wizard of Oz". As with the preceding Muppet films, "The Muppets' Wizard of Oz" became a musical, and included five new songs written and composed by Michael Giacchino. The special is the first Muppets special without the involvement of veteran performer Jerry Nelson following his 2004 retirement from physical performing. His characters of Lew Zealand and Floyd Pepper, were respectively performed by Bill Barretta and John Kennedy. Barretta also debuts as the new permanent performer of Dr.