Rhythm of the Islands is set in the South Seas, presumably far away from the shooting war. The nonsensical plotline finds hero Tommy (Allan Jones) posing as a native chief. Joan Holton (Jane Frazee), daughter of a millionaire (Ernest Truex), falls in love with Tommy, unaware that he's a charlatan.
| Actor | Role |
|---|---|
 Allan JonesTommy | Tommy |
 Jane FrazeeJoan Holton | Joan Holton |
 Andy DevineEddie Dolan | Eddie Dolan |
 Ernest TruexMr. Holton | Mr. Holton |
 Marjorie GatesonMrs. Holton | Mrs. Holton |
 Mary WickesSusie Dugan | Susie Dugan |
 AcquanettaLuani | Luani |
 Nestor PaivaChief Nataro | Chief Nataro |
 James MitchellDancer (uncredited) | Dancer (uncredited) |