Caroll Spinney

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

Jim Henson

as Kermit the Frog / Ernie (voice)

Frank Oz

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

Richard Hunt

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

Kathryn Mullen

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

Jerry Nelson

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

Paul Bartel

as Grouch Cook

Sandra Bernhard

as Grouch Waitress