A mermaid princess is willing to sacrifice anything for love.
| Actor | Role |
|---|---|
 Helen MirrenPrincess Emilia | Princess Emilia |
 Pam DawberPearl | Pearl |
 Treat WilliamsPrince Andrew | Prince Andrew |
 Karen BlackSea Witch | Sea Witch |
 Brian DennehyKing Neptune (Narrator) (voice) | King Neptune (Narrator) (voice) |
 Shelley DuvallSelf - Host | Self - Host |
 Donna McKechnieAnemone | Anemone |
 Laraine NewmanCoral | Coral |
 Guy BoydThe Captain | The Captain |
| GGeoff HoyleFirst Mate | First Mate |
| CCarinthia WestCharlotte | Charlotte |
| SShawn ErlerBoy on the Beach | Boy on the Beach |
| JJohn AchornSailor (uncredited) | Sailor (uncredited) |
| PPatrick DeSantisSailor (uncredited) | Sailor (uncredited) |