A mysterious thief has stolen the prosperous Happy Valley's most prized possession: the musical Singing Harp. Can Mickey, Donald, and Goofy find the answer in the irritable Willie the Giant's magnificent castle up in the blue sky?

Genres

Cast

Walt Disney

Mickey Mouse (voice)

Clarence Nash

Donald Duck (voice)

Pinto Colvig

Goofy (voice)

Sterling Holloway

Narrator (voice)

Paul Frees

Ludwig Von Drake (voice) (uncredited)

Billy Gilbert

Willie the Giant (voice) (uncredited)