as Egbert Sousé
as Self
as Professor Quail
as Humpty-Dumpty
as W. C. Fields
as Professor Pufflewhistle (uncredited)
as (archive footage)
as Harold Bissonette
as Larson E. Whipsnade
as The Great Man
as Eustace McGargle
as Richard Whitehead
as Cuthbert J. Twillie
as T. Frothingill Bellows / S.B. Bellows
as J. Effingham Bellweather
