Fumie Kashiyama

Marina (voice)

Mariko Miyagi

Fritz the Dolphin (voice)

Tarō Shigaki

Prince (voice)

Ichiro Nagai

Whistler (voice)

Kenichi Ogata

Oval Shark (voice)

Haruko Kitahama

Witch (voice)

Miyoko Aso

Mermaid Crone (voice)

Kazuko Sugiyama

Marina's Sister (voice)

Kazuko Sawada

Jemmy the Cat (voice)

Nana Yamaguchi

Prince's Mother (voice)

Rihoko Yoshida

Suomi Princess (voice)

Kaneta Kimotsuki

Crab / Conch (voice)

Kosei Tomita

Duke the Whale (voice)

Hidekatsu Shibata

Mermaid King (voice)