Mega Mindy saves the dolphins after a spoiled rich woman steals them to use in her pond.
| Actor | Role |
|---|---|
 Free SouffriauMieke Fonkel/Mega Mindy | Mieke Fonkel/Mega Mindy |
 Louis TalpeAgent Toby | Agent Toby |
 Anton CogenCommissaris Migrain | Commissaris Migrain |
 Fred Van KuykOpa Fonkel | Opa Fonkel |
 Daisy Van PraetBella | Bella |
| IIvo PauwelsHoofdcommissaris | Hoofdcommissaris |
 Nicky LangleyOma Fonkel | Oma Fonkel |
 Matthias TemmermansBliep (stem) | Bliep (stem) |
 Dries VanhegenJacques | Jacques |
 Ellen SchoetersSophie | Sophie |