 | Steve Whitmire als Ernie / Mo / Troll / Frosty Four Leader (voice) |
 | Eric Jacobson als Bert / Grover (voice) |
 | Fran Brill als Prairie Dawn / Zoe / Frosty Four Singer (voice) |
 | Kevin Clash als Benny Rabbit / Elmo / Frosty Four Singer (voice) |
 | Carmen Osbahr als Rosita (voice) |
 | Stephanie D'Abruzzo als Flo / Frosty Four Singer (voice) |
 | David Rudman als Cookie Monster (voice) |
 | Jim Henson als Kermit the Frog / Bip Bippadotta / Lavender Anything Muppet in Fat Cat (voice) (archive footage) |
 | Louise Gold als Chicken (voice) |
 | Caroll Spinney als Oscar the Grouch (voice) (archive footage) |
 | Frank Oz als Bert / Cookie Monster (credit song) / T-Shirt Salesman / Fat Blue Anything Muppet in Fat Cat (voice) (archive footage) |
 | Jerry Nelson als Kermit the Forg / Kermit the Gorf / Kermit the Grof / Green Anything Muppet in Fat Cat (voice) (archive footage) |
 | Richard Hunt als Harry (voice) (archive footage) |
 | Ivy Austin als Bookworms Leader (voice) (archive footage) |
| Annie Evans | Writer |
| Karin Young Shiel | Executive Producer |
| Jill R. Gluckson | Supervising Producer |
| Kevin Clash | Co-Producer |
| Billy Aronson | Writer |
| Emily Squires | Director |
