Ashanti

Character: Dorothy

Jeffrey Tambor

Character: Wizard

David Alan Grier

Character: Uncle Henry

Queen Latifah

Character: Aunt Em

Quentin Tarantino

Character: Self - Kermit's Director

Steve Whitmire

Character: Scarecrow / Mayor of Munchkinland / Kalidah Critic #1 / Beaker

Dave Goelz

Character: Tin Thing / Kalidah Critic #2 / Dr. Bunsen Honeydew / Zoot

Bill Barretta

Character: Toto / Dr. Teeth / Johnny / Lew Zealand / Swedish Chef / Rowlf

Eric Jacobson

Character: The Cowardly Lion / Witches / Animal / Sam the Eagle (voice)

Brian Henson

Character: Sal (voice)

Kevin Clash

Character: Clifford / Mulch / Black Dog (voice)

John E. Kennedy

Character: Angel Marie / Floyd Pepper (voice)

Rickey Boyd

Character: Scooter / Crazy Harry (voice)

Tyler Bunch

Character: Janice / Old Tom / Pop / Treelo (voice)

Julianne Buescher

Character: Green Lady / Chicken (voice)

John Henson

Character: Sweetums (voice)

Drew Massey

Character: Muppet Performer

Allan Trautman

Character: Crow / Old Tom (voice)

Alice Dinnean

Character: Camilla / Foo-Foo (voice)

Mike Quinn

Character: Spotted Dick (voice)

Gord Robertson

Character: Muppet Performer

Adam Behr

Character: Muppet Performer

Jeny Cassady

Character: Muppet Performer

Geoff Redknap

Character: Muppet Performer

James Rowley

Character: Muppet Performer

Dan Payne

Character: Weatherman

C. Ernst Harth

Character: Earl

Kelly Osbourne

Character: Post-Makeover Dorothy (uncredited)

Edward Hibbert

Character: Stage Manager (uncredited)

Ken Jones

Character: Earl's Buddy (uncredited)