Casting | Rôle |
|---|
| Steve Whitmire | Ernie / Mo / Troll / Frosty Four Leader (voice) |
| Eric Jacobson | Bert / Grover (voice) |
| Fran Brill | Prairie Dawn / Zoe / Frosty Four Singer (voice) |
| Kevin Clash | Benny Rabbit / Elmo / Frosty Four Singer (voice) |
| Carmen Osbahr | Rosita (voice) |
| Stephanie D'Abruzzo | Flo / Frosty Four Singer (voice) |
| David Rudman | Cookie Monster (voice) |
| Jim Henson | Kermit the Frog / Bip Bippadotta / Lavender Anything Muppet in Fat Cat (voice) (archive footage) |
| Louise Gold | Chicken (voice) |
| Caroll Spinney | Oscar the Grouch (voice) (archive footage) |
| Frank Oz | Bert / Cookie Monster (credit song) / T-Shirt Salesman / Fat Blue Anything Muppet in Fat Cat (voice) (archive footage) |
| Jerry Nelson | Kermit the Forg / Kermit the Gorf / Kermit the Grof / Green Anything Muppet in Fat Cat (voice) (archive footage) |
| Richard Hunt | Harry (voice) (archive footage) |
| Ivy Austin | Bookworms Leader (voice) (archive footage) |
