Top Billed Cast

1. 

   Fumie Kashiyama

   Marina (voice)

2. 

   Mariko Miyagi

   Fritz the Dolphin (voice)

3. 

   Tarō Shigaki

   Prince (voice)

4. 

   Ichiro Nagai

   Whistler (voice)

5. 

   Kenichi Ogata

   Oval Shark (voice)

6. 

   Haruko Kitahama

   Witch (voice)

7. 

   Miyoko Asô

   Mermaid Crone (voice)

8. 

   Kazuko Sugiyama

   Marina's Sister (voice)

9. 

   Kazuko Sawada

   Jemmy the Cat (voice)

10. 

    Nana Yamaguchi

    Prince's Mother (voice)

11. 

    Rihoko Yoshida

    Suomi Princess (voice)

12. 

    Kaneta Kimotsuki

    Crab / Conch (voice)

13. 

    Kosei Tomita

    Duke the Whale (voice)

14. 

    Hidekatsu Shibata

    Mermaid King (voice)