Overview
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.
Seasons & Episodes
Season 1
Season 2
Key Information
Cast & Crew
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)
Photos
Frequently Asked Questions
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...
Space Brothers has 2 seasons with 99 episodes.
Space Brothers premiered on March 31, 2012.
No, Space Brothers has ended. The final episode aired on March 22, 2014.
Space Brothers originally aired on Nippon TV. Check your local streaming services for availability.
Space Brothers has a rating of 8.1/10 based on user reviews.
Space Brothers is classified as Animation, Drama, Sci-Fi & Fantasy.