- Jim Henson
- Self / Kermit the Frog / Rowlf / Dr. Teeth / Swedish Chef / Waldorf / Ernie / Guy Smiley / Link Hogthrob / Jim Henson Muppet / Mahna Mahna / Convincing John / Bugsy Them / Cantus / Muppet Newsman / Sam / Harry the Hipster / Wilkins / Wontkins (voice) (archive footage)
- Harry Belafonte
- Self
- Carol Burnett
- Self
- Ray Charles
- Self
- John Denver
- Self
- Steven Spielberg
- Self
- Frank Oz
- Self / Miss Piggy / Fozzie Bear / Animal / Bert / Grover / Cookie Monster / Snowths (voice)
- Dave Goelz
- The Great Gonzo / Beauregard / Boober Fraggle / Uncle Travelling Matt / Milton the Toad (voice)
- Jerry Nelson
- Robin the Frog / Lew Zealand / Floyd Pepper / Gobo Fraggle / Camilla the Chicken (voice)
- Richard Hunt
- Scooter / Janice / Statler / Sweetums (voice)
- Steve Whitmire
- Kermit the Frog / Rizzo the Rat / Bean Bunny / Wembley Fraggle / Whoopie Cushions (voice)
- Kevin Clash
- Clifford
- Kathryn Mullen
- Joy Buzzer Cushions / Mokey Fraggle (voice)
- Caroll Spinney
- Big Bird
- Pam Arciero
- Muppet Performer
- Fran Brill
- Muppet Performer
- Camille Bonora
- Muppet Performer
- Joey Mazzarino
- Muppet Performer
- Jim Martin
- Muppet Performer
- Peter MacKennan
- Muppet Performer
- Carmen Osbahr
- Muppet Performer
- Martin P. Robinson
- Muppet Performer
- David Rudman
- Additional Muppets
- Rick Lyon
- Muppet Performer
- Joey Calvan
- Joey
- Jason Carter
- Man
- John Cleese
- Self
- Dabney Coleman
- Martin Price
- Abigail Cruttenden
- Princess
- Juliana Donald
- Jenny
- Charles Durning
- Doc Hopper
- Stephen Garlick
- Jen
- Charles Grodin
- Nicky Holiday
- Terence Harvey
- Grovelhog
- Brian Henson
- The Storyteller's Dog
- Cheryl Henson
- Muppet Performer
- John Hurt
- The Storyteller
- Duncan Kenworthy
- Statler
- Ted Koppel
- Self
- Ladysmith Black Mambazo
- African Alphabet Muppets
- Brian Meehl
- Barkley / Dying Master (archive footage) (uncredited)
- Kieran O'Brien
- Matt Banting
- Bob Peck
- Soldier
- Austin Pendleton
- Max
- Bill Prady
- Muppet Performer
- Karen Prell
- Red Fraggle
- Don Sahlin
- Self
- Craig Shemin
- Waldorf
- Ed Sullivan
- Self
- Scott Walker
- Snake Walker
