When an agricultural professor returns home to the farm with her scientifically-raised mule for a needed rest, they find themselves caught up in a movie being filmed in the Ozarks.
| Actor | Role |
|---|---|
 Martha O'DriscollJane Colwell | Jane Colwell |
 John CarradineThorndyke 'Thorny' P. Dunning | Thorndyke 'Thorny' P. Dunning |
 Eddie DeanMortimer | Mortimer |
 William WrightMike Burton | Mike Burton |
 Roscoe AtesPappy | Pappy |
 Renee GodfreyGloria Baxter | Gloria Baxter |
 Mabel ToddCindy | Cindy |
| EEddie CravenSam | Sam |
 Chester CluteProf. Shaw | Prof. Shaw |
 Will WrightProf. Morris | Prof. Morris |
 Paul ScardonProf. Lewis | Prof. Lewis |
 Earle HodginsPress Agent | Press Agent |
| TTailor MaidsSinging Group | Singing Group |
| SShirleyShirley (the Mule) | Shirley (the Mule) |