Where to Watch
Region
Plex Channel
Watch free
HD
Included
Crunchyroll
Stream included
HD
Included
Crunchyroll Amazon Channel
Stream included
HD
Included
Plex
Watch free
HD
Included
Prices last updated April 29, 2026. Pricing and availability may vary by region.
powered by JustWatch
Seasons
All seasons
About
When they were young, the brothers Mutta and Hibito promised each other they would become astronauts. Now, in 2025, Hibito has followed his dream to become the first Japanese on the moon, but Mutta has just been fired from his job. His brother reminds him of their childhood promise, and Mutta decides once again to aim for space.
First Aired
Mar 31, 2012
Last Aired
Mar 22, 2014
Seasons
2
Episodes
99
Studio
TOHO, dentsu, Kodansha, A-1 Pictures, Yomiuri Telecasting Corporation
Original Title
宇宙兄弟
Original Language
Japanese
Cast
Full credits →H
Hiroaki Hirata
Mutta Nanba (voice)
M
Miyuki Sawashiro
Mutta Nanba (voice)
K
KENN
Hibito Nanba (voice)
M
Masayuki Katou
Kenji Makabe (voice)
M
Miyuki Sawashiro
Serika Itou / Mutta Nanba as a Boy (voice)
M
Masako Ikeda
Sharon Kaneko (voice)
Y
Yuko Sanpei
Hibito Nanba as a Boy (voice)
S
Shô Ryûzanji
Tadashi Hoshika (voice)
R
Ryou Naitou
Yasushi Furuya (voice)
S
Shintaro Asanuma
Yamato Mizoguchi (voice)
T
Takanori Hoshino
Reiji Nitta (voice)
