The Basque shipowner Ignacio Ibarrola has two sons: Ignacio and José Mari. Both have very different characters and since childhood there has been a great rivalry between them.
| Actor | Role |
|---|---|
 Miriam Di San ServoloDorothy Wills | Dorothy Wills |
 Manolo MoránJosechu | Josechu |
 Raúl CancioIgnacio Ibarrola | Ignacio Ibarrola |
 María AsquerinoMarichu | Marichu |
 Alfonso EstelaJosé Mari Ibarrola | José Mari Ibarrola |
 Alberto RomeaMister Wills | Mister Wills |
| FFélix FernándezDon Vicente | Don Vicente |