Space Brothers: Number Zero

Kazuki Iio

Ebio Sakai (voice)

Mayumi Tanaka

Mayumi Nanba (Nanba's Mother) (voice)

Miyuki Sawashiro

Mutta Nanba (young) (voice)

Yuko Sanpei

Hibito Nanba (young) (voice)

Daishiro Hano

Koiguchi (voice)

Eiji Itoh

Tetsutaro Tsurumi (voice)

Hiroshi Tsuchida

Damien Kweller (voice)

Hitomi Nagasaki

Amy Jay (voice)

Kazuhiro Fusegawa

Uchikoshi (voice)

Masashi Sada

Dokonjo Tofu (voice)

Matabe Watabe

Doraku Kanie (voice)

Miwa Kohinata

Karen Jones (voice)

Rintaro Nishi

Freddie Saturn (voice)

Ryosuke Sakamaki

Rory Cuomo (voice)

Shô Ryûzanji

Tadashi Hoshika (voice)

Taiten Kusunoki

Phillip Louis (voice)

Kenji Nomura

Takio Azuma (voice)