Jimmy O'Brien (Robert Lowery)and Sammy Rubin (Sidney Miller), write jingle commercials for radio, and meet Mary Adams (Dona Drake), who wants to break into radio as a soloist for a band.
| Actor | Role |
|---|---|
 Dona DrakeMary Adams | Mary Adams |
 Robert LoweryJimmy O'Brien | Jimmy O'Brien |
 Tim RyanMr. O'Hara (as Tim) | Mr. O'Hara (as Tim) |
 Irene RyanPolly Kane (as Irene) | Polly Kane (as Irene) |
 Jerry CooperTommy Taylor | Tommy Taylor |
 Harry LangdonMr. Whiffle | Mr. Whiffle |
 Sidney MillerSammy Rubin | Sammy Rubin |