Ashanti

Dorothy

Jeffrey Tambor

Wizard

David Alan Grier

Uncle Henry

Queen Latifah

Aunt Em

Quentin Tarantino

Self - Kermit's Director

Steve Whitmire

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

Dave Goelz

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

Bill Barretta

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

Eric Jacobson

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

Brian Henson

Sal (voice)

Kevin Clash

Clifford / Mulch / Black Dog (voice)

John E. Kennedy

Angel Marie / Floyd Pepper (voice)

Rickey Boyd

Scooter / Crazy Harry (voice)

Tyler Bunch

Janice / Old Tom / Pop / Treelo (voice)

Julianne Buescher

Green Lady / Chicken (voice)

John Henson

Sweetums (voice)

Drew Massey

Muppet Performer

Allan Trautman

Crow / Old Tom (voice)

Alice Dinnean

Camilla / Foo-Foo (voice)

Mike Quinn

Spotted Dick (voice)

Jeny Cassady

Muppet Performer

Geoff Redknap

Muppet Performer

Dan Payne

Weatherman

C. Ernst Harth

Earl

Kelly Osbourne

Post-Makeover Dorothy (uncredited)

Edward Hibbert

Stage Manager (uncredited)