When teen heartthrob Frankie Troy disappears, high schooler Freddie Trimble–a dead ringer for the crooner–is singled out by his so-called friends as the radio star. As hijinks ensue, things worsen when Troy's wife and newborn arrive.
| Actor | Role |
|---|---|
 Freddie StewartFreddie Trimball / Frankie Troy | Freddie Trimball / Frankie Troy |
 June PreisserDodie Rogers | Dodie Rogers |
 Noel NeillBetty Rogers | Betty Rogers |
 Frankie DarroRoy Donne | Roy Donne |
 Warren MillsLee Watson | Lee Watson |
 Jackie MoranJimmy Forrest | Jimmy Forrest |
 Belle MitchellMiss Matilda Hinklefink | Miss Matilda Hinklefink |
 Milton KibbeeProfessor Owen Townley | Professor Owen Townley |
 Anne RooneyAddie Rogers | Addie Rogers |
| EEdythe ElliottMrs. Rogers | Mrs. Rogers |
 Emmett VoganMr. Backer | Mr. Backer |
 Claire JamesJean Troy | Jean Troy |
| MMurray DavisTiny | Tiny |
 Charlie BarnetHimself | Himself |