Sanne (Hanna Obbeek) loves stories about ghosts and other mysterious things. Her father Lucas, is a famous ghost hunter. During a holiday Lucas is asked to chase ghosts of the former cruise ship 'Rotterdam'. Sanne is very happy to hear she and her little brother Thomas can come along. On the ship she meets ghost Bobby (Nils Verkooijen), a boy of her age, who has been wandering the ship since the sixties. Sanne decides to help Bobby.
| Actor | Role |
|---|---|
 Hanna ObbeekSanne | Sanne |
 Nils VerkooijenBobby | Bobby |
 Max van den BurgLucas | Lucas |
 Lotte HeijtenisEls | Els |
 Jelle StoutThomas | Thomas |
 Diana DobbelmanMartha | Martha |
 Wil van der MeerWim | Wim |
| CCaroline MottMw. Hansen | Mw. Hansen |
 Bas van ProoijenBenno | Benno |
 Joke TjalsmaDorothea | Dorothea |
 Eva van der GuchtBernadette | Bernadette |
| AAernout PleketStuurman Anton | Stuurman Anton |
| AAlexander de BruijnRamon | Ramon |
| JJan VredenburgJulius | Julius |
| IIneke VroonhovenLeonie | Leonie |
| HHans van HechtenRobert | Robert |
 Jason de RidderAristide | Aristide |
| BBar SmeetsStan | Stan |
| RRoman van der WerffJerry | Jerry |
| MMichael SchnörrAndy | Andy |
 Gerson OratmangoenNick | Nick |
 Dimme TreurnietEric Masters | Eric Masters |
 Laurie Reijsassistente Eric Masters | assistente Eric Masters |
| RRob van Dijkassistent Eric Masters | assistent Eric Masters |
| JJardy Kooijassistent Eric Masters | assistent Eric Masters |
| DDick van OostenBemanningslid | Bemanningslid |
| MMartin LagesteeKapitein | Kapitein |
| BBram EijsenringOber | Ober |
 Nicolas de PruyssenaereMan | Man |
| LLisa WareReceptioniste | Receptioniste |