John Denver as Self

Jim Henson as Kermit the Frog / Rowlf / Waldorf / Dr. Teeth / The Swedish Chef (voice)

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

Richard Hunt as Scooter / Statler / Janice / Beaker (voice)

Dave Goelz as The Great Gonzo / Zoot / Dr. Bunsen Honeydew (voice)

Jerry Nelson as Camilla / Lew Zealand / Robin the Frog / Sgt. Floyd Pepper (voice)

Steve Whitmire as Additional Muppet Performer

Kathryn Mullen as Additional Muppet Performer

Brian Muehl as Additional Muppet Performer

Cheryl Henson as Additional Muppet Performer

Phillip Huber as Additional Muppet Performer

Bob Payne as Additional Muppet Performer

Michael Earl as Additional Muppet Performer