Caroll Spinney

Big Bird / Oscar the Grouch / Bruno the Trashman (voice)

Jim Henson

Kermit the Frog / Ernie (voice)

Frank Oz

Cookie Monster / Bert / Grover / Additional Muppets (voice)

Richard Hunt

Gladys the Cow / Feathered Friends Owl / Additional Muppets / Grouches (voice)

Kathryn Mullen

Feathered Friends Magistrate / Grouch Diner Patron / Little Girl / Additional Muppets (voice)

Jerry Nelson

Count von Count / Herry Monster / Additional Muppets (voice)

Paul Bartel

Grouch Cook

Sandra Bernhard

Grouch Waitress

Waylon Jennings

Truck Driver

Laraine Newman

Mommy Dodo (voice)

Eddie Deezen

Donnie Dodo (voice)

Sally Kellerman

Miss Finch (voice)