Space Brothers

Hiroaki Hirata

Mutta Nanba (voice)

KENN

Hibito Nanba (voice)

Masayuki Katou

Kenji Makabe (voice)

Miyuki Sawashiro

Serika Itou / Mutta Nanba as a Boy (voice)

Masako Ikeda

Sharon Kaneko (voice)

Yuko Sanpei

Hibito Nanba as a Boy (voice)

Shô Ryûzanji

Tadashi Hoshika (voice)

Ryou Naitou

Yasushi Furuya (voice)

Shintaro Asanuma

Yamato Mizoguchi (voice)

Takanori Hoshino

Reiji Nitta (voice)