Steve Whitmire

Character: Ernie / Mo / Troll / Frosty Four Leader (voice)

Eric Jacobson

Character: Bert / Grover (voice)

Fran Brill

Character: Prairie Dawn / Zoe / Frosty Four Singer (voice)

Kevin Clash

Character: Benny Rabbit / Elmo / Frosty Four Singer (voice)

Carmen Osbahr

Character: Rosita (voice)

Stephanie D'Abruzzo

Character: Flo / Frosty Four Singer (voice)

David Rudman

Character: Cookie Monster (voice)

Jim Henson

Character: Kermit the Frog / Bip Bippadotta / Lavender Anything Muppet in Fat Cat (voice) (archive footage)

Louise Gold

Character: Chicken (voice)

Caroll Spinney

Character: Oscar the Grouch (voice) (archive footage)

Frank Oz

Character: Bert / Cookie Monster (credit song) / T-Shirt Salesman / Fat Blue Anything Muppet in Fat Cat (voice) (archive footage)

Jerry Nelson

Character: Kermit the Forg / Kermit the Gorf / Kermit the Grof / Green Anything Muppet in Fat Cat (voice) (archive footage)

Richard Hunt

Character: Harry (voice) (archive footage)

Ivy Austin

Character: Bookworms Leader (voice) (archive footage)