All Cast
Rena Komine
Izumi Hazuki
Shinsuke Aoki
Mao Kuwashima
Reiko Matsuo
Miki
Masaaki Takarai
Ukiya
Naho Toda
Yo Hazuki
Hideyo Amamoto
Sakai
Masao Kusakari
Dolphin Instructor
Yuji Nakamura
Diving Coach
Kou Machida
Stone Tribe Emissary
Isamu Osuga
Professor Abe
Genjiro Arato
Biology Teacher