Art Carney

Santa Claus / Cosmo Scam

Ed Sullivan

Self / Host / Narrator (uncredited)

Jim Henson

Fred / Lothar (voice)

Frank Oz

Thig / Skippity / Hoppity / Boppity / Snerf (voice)

Jerry Nelson

Thog / Zippity / Snivelly (voice)

Danny Seagren

Gloat / Snarl / Snerf (voice)

John Lovelady

Bong / Snake Frackle / Scoff / Snerf / Alarm Frackle (voice)

Richard Hunt

Bing / Match Frackle (voice)

Marilyn Sokol

Additional Muppet Performer (voice)

Fran Brill

Snerf (voice)