- Kermit the Frog
- Miss Piggy
- Fozzie Bear
- Gonzo
- Scooter
- Walter
- Clifford
- Rizzo the Rat
- Pepe the King Prawn
- Nigel the director
- Vicki
- Leon
- Pops
- Statler and Waldorf
- Dr. Bunsen Honeydew
- Beaker
- Lew Zealand
- Link Hogthrob
- The Mutations
- Sweetums
- Mean Mama
- Timmy Monster
- Chickens
- Whatnots
- Camilla
- Big Mean Carl
- Thog
- Thig
Background Characters (non-speaking)
Gorgon Heap, Doglion, Harold, Forcryingoutloud Bird, Ohboy Bird, Rowlf the Dog, Milton the Blue-Footed Booby, Bertha, Aretha, Wayne and Wanda