A 13-year-old brainiac invents an ingenious listening device, which he uses to bring a crooked city official and his pals to justice
Mayor Massey
Charles Blackburn
Fred Benson
Alvin Fernald
Shoie
Daphne 'Daffy' Fernald
Doyle Reager
Miss Pinkney
Mr. Fernald
Mrs. Fernald
Mrs. Hundley
Herb Evans
Mrs. Blake
Ed Haskins
Mr. Hodges
Police Chief
Sam Preston
Sgt. O'Halloran
Shorty
Commissioner
Greta
City Engineer
Worm
Reporter
Mrs. Barkley
Director
Teleplay
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Music
Director of Photography
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Art Direction
Art Direction
Set Decoration
Set Decoration
Set Decoration
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