Follow Dolly's desire to uplift an exhausted world's spirits by sharing the unique "mountain magic". Throughout the chaos, Dolly finds herself taking a journey guided by the mysterious appearances of her Three Wise Mountain Men.
| Actor | Role |
|---|---|
 Dolly PartonSelf | Self |
 Miley CyrusSelf | Self |
 Tom Everett ScottSam | Sam |
 Jimmy FallonSelf | Self |
 Ana GasteyerSusan | Susan |
 Billy Ray CyrusSelf | Self |
 Rhoda GriffisJudy Ogle | Judy Ogle |
 Willie NelsonSelf | Self |
 Angel ParkerJasmine Brooks | Jasmine Brooks |
 Bryan BattDavid | David |
 Mary Lane HaskellMiss Moody | Miss Moody |
| JJustin ByrdPark Patron | Park Patron |
| MMiranda MaleskiDancer | Dancer |