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

Joe Flaherty

Sid Sleaze

Dave Thomas

Sam Sleaze

Linda Bove

Linda

Emilio Delgado

Luis

Loretta Long

Susan

Sonia Manzano

Maria

Bob McGrath

Bob

Roscoe Orman

Gordon

Alaina Reed Hall

Olivia

Kermit Love

Willy

Alyson Court

Ruthie

Martin P. Robinson

Mr. Snuffleupagus / Telly Monster / Board of Birds / Grouch Diner Patron (voice)

Noel MacNeal

Board of Birds (voice)

Nikki Tilroe

Board of Birds (voice)

Lee Armstrong

Board of Birds (voice)