Moe Howard

Moe

Larry Fine

Larry

Joe DeRita

Curly-Joe

Emil Sitka

Prof. Dolottle

Marjorie Eaton

Mrs. McGinnis

Don Lamond

Announcer

Edward Innes

Landlord

Albert Grazier

Butler

Mel Blanc

Christopher Columbus / Feather (voice) (uncredited)

Norman Maurer

Cameraman (uncredited)

Sidney Miller