Space Brothers
宇宙兄弟
We checked 8 streaming services in India on 04 Jun 2026 at 14:01 IST
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.
Cast
Hiroaki Hirata
as Mutta Nanba (voice)
KENN
as Hibito Nanba (voice)
Masayuki Katou
as Kenji Makabe (voice)
Miyuki Sawashiro
as Serika Itou / Mutta Nanba as a Boy (voice)
Masako Ikeda
as Sharon Kaneko (voice)
Yuko Sanpei
as Hibito Nanba as a Boy (voice)
Shô Ryûzanji
as Tadashi Hoshika (voice)
Ryou Naitou
as Yasushi Furuya (voice)
Shintaro Asanuma
as Yamato Mizoguchi (voice)
Takanori Hoshino
as Reiji Nitta (voice)
Episodes
Season 1
Little Brother Hibito and Big Brother Mutta
The year 2006. Two brothers, Nanba Mutta (age 12) and Hibito (age 9), happen to spot a UFO headed for the moon. The experience inspires them to make a certain promise.
My Shining Star
With his mother's assistance and Hibito's encouragement, Mutta has been accepted for the New Astronaut Selection Exam. However, unsure of his next step, he visits Sharon, who works at a nearby observatory. After receiving advice from Sharon, Mutta is finally able to make up his mind.
The Man with the Advantage and the Running Female Doctor
After advancing to the second exam, Mutta realizes that the other applicants are much better prepared than he is. Desperate to prove himself, he stakes everything on the lung capacity test, as he has confidence in his trumpet-trained lungs. However, as the other applicants drop out, he finds himself in a heated battle with Itou Serika. Who will come out on top?
Next to Hibito
After a long week, only the final interview remains in the second JAXA exam. Mutta is drawing attention as Nanba Hibito's older brother, but he insists he won't spend his entire life as Nanba Hibito's big brother.
Days of Missing
After completing the second JAXA exam, Hibito invites Mutta for a free trip to Houston, Texas, through NASA's family support program. Upon arrival, he finds himself chased by a pug named Apo, and is then reunited with Hibito. However, Hibito expresses disappointment.
Et Cetera in My Head
Mutta has arrived in America, but he's off to a rocky start with Hibito. Meanwhile, his future as an astronaut is in jeopardy because the headbutt incident has been brought to JAXA's attention.
Dear Hibito
After learning that his former boss has told JAXA about the headbutt incident, Mutta has given up hope on passing the exam. To cope, Mutta falls back on his childhood habit of multitasking like crazy when something bad happens.
Smoky Heaven
When the robber known as the fire extinguisher man strikes the restaurant where Mutta is, he's in trouble. But once the dust settles, Mutta has become a national hero for capturing the criminal. However, it appears there's more to the story.
Where does Space Brothers rank today?
Space Brothers is #475 on the Bowood.TV Daily Streaming Charts today.
- Highest: #475
- Top 10: 0 days
- Top 100: 0 days
Watch Space Brothers Online Free — All Episodes in HD
Stream Space Brothers online free in HD on Bowood.TV. A highly acclaimed animation, drama, and sci-fi & fantasy series originally produced in Japanese and released in 2012, it's earned a solid 8.1/10 from 23 viewers worldwide.
About 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. Across 2 seasons and 99 episodes, originally airing on Nippon TV.
Space Brothers Cast and Characters
The cast features Hiroaki Hirata (as Mutta Nanba (voice)), KENN (as Hibito Nanba (voice)), Masayuki Katou (as Kenji Makabe (voice)), Miyuki Sawashiro (as Serika Itou / Mutta Nanba as a Boy (voice)), and Masako Ikeda (as Sharon Kaneko (voice)). Their performances are a major reason Space Brothers has built such a passionate audience.
Where to Watch Space Brothers Online
On Bowood.TV you can watch Space Brothers free — no account, no credit card, no ads in the middle of the show. We stream the full series in 720p / 1080p HD, with subtitles when available, on any device: phone, tablet, laptop, or smart TV browser.
▶ Watch Space Brothers NowWhy People Are Watching Space Brothers
There's a reason Space Brothers keeps showing up on "must-watch" lists. What makes it work is emotional weight that hits where it counts and world-building that respects the audience's intelligence. If you enjoy Japanese storytelling that doesn't follow the same tired beats, this is the kind of show you'll end up recommending to friends.
Frequently Asked Questions about Space Brothers
Where can I watch Space Brothers online for free?
You can watch Space Brothers online free on Bowood.TV. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.
How many episodes does Space Brothers have?
Space Brothers has 99 episodes across 2 seasons. All episodes are available to stream right here on Bowood.TV.
Is Space Brothers good? What's the rating?
Space Brothers holds a 8.1/10 rating based on 23 reviews — genuinely excellent.
Who is in the cast of Space Brothers?
The main cast includes Hiroaki Hirata, KENN, Masayuki Katou, and Miyuki Sawashiro, plus a strong supporting ensemble.
Is Space Brothers available in Japanese?
Yes — Space Brothers was originally produced in Japanese and that's the version you'll stream here on Bowood.TV. English subtitles are provided when available.
When was Space Brothers released?
Space Brothers first aired in 2012.
Do I need an account to watch Space Brothers on Bowood.TV?
No. Bowood.TV is free and you can watch Space Brothers without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
Similar Series You Might Like
If you enjoyed Space Brothers, check out Gosho Aoyama's Collection of Short Stories, Insufficient Direction, Shigofumi: Letters from the Departed, Quark, and Witch Watch.
Frequently Asked Questions
Where can I watch Space Brothers for free?
You can watch Space Brothers online for free on Bowood.TV. All 99 episodes across 2 seasons are available to stream in HD without a subscription, signup, or paywall. Just open the show page and press play.
How many seasons and episodes does Space Brothers have?
Space Brothers currently has 2 seasons and a total of 99 episodes. The series status is "Ended", so the episode count may grow as new seasons are released. You can browse the full episode list on Bowood.TV and continue watching from where you left off.
What is Space Brothers 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 a… It belongs to the Animation, Drama, Sci-Fi & Fantasy genres.
In which language is Space Brothers originally available?
Space Brothers was originally produced in JA. On Bowood.TV the show is available in its original JA audio. Check the player options on the watch page for available subtitle tracks.
When was Space Brothers first released?
Space Brothers first premiered on March 31, 2012 (2012). The series has since concluded its run.
All Seasons
Browse every season of Space Brothers — 2 seasons in total
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