A pair of beach bums wind up in Acapulco, where they get involved in a search for a beautiful woman and a sunken treasure.
| Actor | Role |
|---|---|
 Ray MillandEvelyn Rose | Evelyn Rose |
 Suzanne PleshetteAnna | Anna |
 Dack RamboRiley Briggs | Riley Briggs |
 Roger DavisMarcus McAllister | Marcus McAllister |
 Melissa NewmanJulie | Julie |
 Jorge LukeTomas | Tomas |
 Pedro Armendáriz Jr.Angel | Angel |
 José ChávezRodrigo | Rodrigo |
 Eduardo López RojasSeñor Cepeda | Señor Cepeda |
| TTeddy StaufferJay Marston | Jay Marston |
| BBarbara AngellTina Marston | Tina Marston |
 Pancho CórdovaPriest | Priest |