Chicago mobster Big Frank hires rock & roll singer Rusty Wells and his band to keep an eye on his daughter during Spring Break in Fort Lauderdale.
| Actor | Role |
|---|---|
 Elvis PresleyRusty Wells | Rusty Wells |
 Shelley FabaresValerie | Valerie |
 Harold J. StoneBig Frank | Big Frank |
 Gary CrosbyAndy | Andy |
 Joby BakerWilbur | Wilbur |
 Nita TalbotSunny Daze | Sunny Daze |
 Mary Ann MobleyDeena | Deena |
 Fabrizio MioniRomano | Romano |
| JJimmy HawkinsDoc | Doc |
 Jackie CooganSgt. Benson | Sgt. Benson |
 Peter BrooksBrentwood Von Durgenfeld | Brentwood Von Durgenfeld |
 John FiedlerMr. Penchill | Mr. Penchill |
 Chris NoelBetsy | Betsy |
| LLyn EdgingtonLaurie | Laurie |
 Gail GilmoreNancy | Nancy |
 Pamela CurranBobbie | Bobbie |
| RRusty AllenLinda | Linda |
 Beverly AdamsGirl #2 (uncredited) | Girl #2 (uncredited) |
 Tommy FarrellLouie (uncredited) | Louie (uncredited) |
 Dan HaggertyCharlie (uncredited) | Charlie (uncredited) |
 Les TremayneOpening Narrator (uncredited) | Opening Narrator (uncredited) |
 Milton FromePolice Captain (uncredited) | Police Captain (uncredited) |
 Richard ReevesOfficer Wilkins (uncredited) | Officer Wilkins (uncredited) |
 Robert BanasDancer | Dancer |