Jim Henson
Kermit the Frog / Rowlf the Dog / Dr. Teeth / Waldorf / Swedish Chef / The Muppet Newsman

Frank Oz
Miss Piggy / Fozzie Bear / Sam the Eagle / Animal (voice)

Dave Goelz
Gonzo / Beauregard / Zoot / Dr. Bunsen Honeydew / Lobbuck Lou

Jerry Nelson
Floyd Pepper / Pops / Lew Zealand / Crazy Harry / Louis Kazager

Richard Hunt
Scooter / Statler / Sweetums / Janice / Beaker / Bubba

Steve Whitmire
Rizzo the Rat / Lips (voice)

Charles Grodin
Nicky Holiday

Diana Rigg
Lady Holiday

John Cleese
Neville

Jack Warden
Mike Tarkenian

Robert Morley
British Gentleman by Pond

Peter Ustinov
Truck Driver

Caroll Spinney
Oscar the Grouch (voice)

Susan Backlinie
Charkie's Water Ballet Performer

Joan Sanderson
Dorcas

Peter Falk
Tramp

Danny John-Jules
Street Dancer

Erica Creer
Marla

Kate Howard
Carla

Della Finch
Darla

Michael Robbins
Henderson

Peter Hughes
Stanley

Peggy Aitchison
Guard

Tommy Godfrey
Bus Conductor

Christine Nelson

Valli Kemp
2nd Model

Mike Quinn
Muppet Performer