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)

Cathy Silvers

Marie Dodo (voice)

John Candy

State Trooper

Chevy Chase

Newscaster