Teenager Henry Aldrich decides to take matters into his own hands when his high school principal forbids the student band from playing swing music.
| Actor | Role |
|---|---|
 Jimmy LydonHenry Aldrich | Henry Aldrich |
 Charles SmithDizzy Stevens | Dizzy Stevens |
 John LitelMr. Aldrich | Mr. Aldrich |
 Olive BlakeneyMrs. Aldrich | Mrs. Aldrich |
 Vaughan GlaserMr. Bradley | Mr. Bradley |
 Mimi ChandlerMimi Gray | Mimi Gray |
 Fritz FeldJosef Altman | Josef Altman |
| MMarian HallLouise Elliott | Louise Elliott |
| BBeverly HudsonMargie | Margie |
 Charles ArntBoyle | Boyle |
 Byron FoulgerStore Proprietor (uncredited) | Store Proprietor (uncredited) |