Harumi Inoue

as Ryoka Sannohe

as Yasue Hisamatsu

as Momo Tanaka

as 安藤桐江

as Chiyoko Takeda

as Mother

as Mother

as Yôko Imamura

as Mermaid Yumi

as Chihiro Yamazaki

as Shizuka Kitahara

as Sonoda Ikumi (11 episodes)

as Aya Yagishita (12 episodes)