Space Brothers
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.
Where to watch in 🇺🇸 United States
Free with ads
Top cast
Hiroaki Hirata
Mutta Nanba (voice)
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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)
Frequently asked questions
Where can I watch Space Brothers online?
As of August 6, 2026, Space Brothers is available to stream on Crunchyroll, Crunchyroll Amazon Channel, Plex, and Tubi TV in United States. Use the country selector above to check availability in other regions — streaming rights are licensed per country, so catalogues differ.
Is Space Brothers on Netflix?
No — Space Brothers is not currently on Netflix in any of the countries we track. In United States it streams on Crunchyroll, Crunchyroll Amazon Channel, Plex, and Tubi TV instead.
Can I rent or buy Space Brothers online?
Our sources do not list a digital rental or purchase option for Space Brothers in United States right now.
In which countries can I stream Space Brothers?
As of August 6, 2026, Space Brothers is included with a streaming subscription (or free with ads) in Argentina, Brazil, Canada, Chile, Colombia, Mexico, United Kingdom, and United States, among the countries we track.
Streaming availability last checked on August 6, 2026. Catalogues change frequently — data from TMDB and JustWatch.
