Jimmy Durante

Narrator (voice)

Billy De Wolfe

Professor Hinkle (voice)

Jackie Vernon

Frosty the Snowman (voice)

Paul Frees

Santa Claus / Traffic Cop / Additional Voices (voice)

June Foray

Teacher / Karen / Additional Voices (voice)

Suzanne Davidson

Karen (voice) (uncredited)

Greg Thomas

Karen's friends (voice) (uncredited)