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
A 13-year-old brainiac invents an ingenious listening device, which he uses to bring a crooked city official and his pals to justice
