Season 1

Hideo Ishikawa

Ryoma Nagare (voice)

Nozomu Sasaki

Tairu (voice)

Fumihiko Tachiki

McDonald (voice)

Yohei Tadano

Professor Shikishima (voice)

Takaya Hashi

Komei (voice)

Kenichi Ogata

Professor Han (voice)

Romi Park

Queen Meldusa (voice)

Mitsuo Iwata

Igari (voice)

Yuma Uchida

Takuma Nagare (voice)

Kiyoyuki Yanada

Benkei Kuruma (voice)

Naoya Uchida

Hayato Jin (voice)

Takayuki Sugo

Professor Saotome (voice)

Sumi Shimamoto

Ryou Nagare (voice)

Jun Kawagoe

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Arihiro Mukaino

Shou Kamui (voice)

Kazuhiro Sunseki

Baku Yamagishi (voice)