Steve Whitmire

as Ernie / Mo / Troll / Frosty Four Leader (voice)

Eric Jacobson

as Bert / Grover (voice)

Fran Brill

as Prairie Dawn / Zoe / Frosty Four Singer (voice)

Kevin Clash

as Benny Rabbit / Elmo / Frosty Four Singer (voice)

Carmen Osbahr

as Rosita (voice)

Stephanie D'Abruzzo

as Flo / Frosty Four Singer (voice)

David Rudman

as Cookie Monster (voice)

Jim Henson

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