John Ritter

Clifford the Big Red Dog (voice)

Wayne Brady

Shackelford (voice)

Grey DeLisle

Emily Elizabeth (voice)

Jenna Elfman

Dorothy (voice)

John Goodman

George Wolfsbottom (voice)

Jess Harnell

Dirk (voice)

Kel Mitchell

T-Bone (voice)

Judge Reinhold

Larry (voice)

Kath Soucie

Jetta / Madison (voice)