Kazusa Murai

as Marina (voice)

Kenji Nojima

as Kenta (voice)

Yukiji

as Raichu (voice)

Ayako Shiraishi

as Joy (voice)

Chinami Nishimura

as Junsa (voice)

Daiki Nakamura

as Scientist (voice)

Daisuke Sakaguchi

as Jun'ichi (voice)

Hidetoshi Nakamura

as Dr. Shiranui (voice)

Katsuyuki Konishi

as Meganium / Raikou (voice)

Kazuhiko Inoue

as Narrator / Professor Utsugi (voice)

Nobuyuki Hiyama

as Buson (voice)

Ryoka Yuzuki

as Mauma (voice)

Shinji Kawada

as Minaki (voice)

Susumu Chiba

as Bakphoon (voice)

Toshikazu Fukawa

as Kudo (voice)

Toshiyuki Morikawa

as Bashou (voice)

Yuka Komatsu

as Rediba (voice)

Yumi Touma

as Minaki (child) / Purin (Pink-chan) (voice)