Posing as unemployed musicians, Roy Acuff and his Smoky Mountain Boys, are being helped by Ted Gibson owner of the Harmony Inn in San Antonio, Texas. Gibson is impoverished because he keeps buying his kleptomaniac Uncle Zeke out of trouble, supports his Ma, and Grandpa. He wants to marry Jean Wallace, and doesn't know that Acuff and his musicians are traveling incognito for the radio show "Who Am I Helping?" If he guesses their identity, he wins $100,000.
| Actor | Role |
|---|---|
 Roy AcuffRoy Acuff aka Jack Jones | Roy Acuff aka Jack Jones |
 Doye O'DellRadio Singer | Radio Singer |
 Lyn ThomasJune Wallace | June Wallace |
 Bill EdwardsTed Gibson | Ted Gibson |
 George ClevelandGrandpa Gibson | Grandpa Gibson |
 Lloyd CorriganUncle Zeke Tinker | Uncle Zeke Tinker |
 William FrawleyO'Fleery | O'Fleery |
 Fred F. SearsRado Announcer Breezy | Rado Announcer Breezy |
 Dorothy VaughanMa Gibson | Ma Gibson |
 Ivan TriesaultJewel Theif | Jewel Theif |
 Matt WillisJewel Thief Thorg | Jewel Thief Thorg |
 Sam FlintDan Wallace | Dan Wallace |