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

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

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

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

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

Steve Whitmire as Rizzo the Rat / Lips (voice)

Charles Grodin as Nicky Holiday

Diana Rigg as Lady Holiday

John Cleese as Neville

Jack Warden as Mike Tarkenian

Robert Morley as British Gentleman by Pond

Peter Ustinov as Truck Driver

Caroll Spinney as Oscar the Grouch (voice)

Susan Backlinie as Charkie's Water Ballet Performer

Joan Sanderson as Dorcas

Peter Falk as Tramp

Danny John-Jules as Street Dancer

Erica Creer as Marla

Kate Howard as Carla

Della Finch as Darla

Michael Robbins as Henderson

Peter Hughes as Stanley

Peggy Aitchison as Guard

Tommy Godfrey as Bus Conductor

Christine Nelson as

Valli Kemp as 2nd Model

Mike Quinn as Muppet Performer