Space Brothers Facts, FAQ & Common Questions
2012 · Nippon TV, YTV · Status: Ended · Rated: TV-14
Frequently Asked Questions About Space Brothers
Direct, verified answers to the most common queries regarding episodes, renewals, watch order, and streaming availability.
How many seasons and episodes does Space Brothers have?
Space Brothers has 2 seasons and 99 total episodes, spanning from its premiere on March 31, 2012 to March 22, 2014.
Is Space Brothers renewed, ended, or canceled?
Space Brothers has concluded its run and is officially ended.
How long does it take to binge watch Space Brothers?
It takes 39h 36m (2376 minutes) to watch the complete run of Space Brothers. At a standard pace of 2 hours per day, you will finish the entire series in approximately 20 days. Not realistic for a 48-hour weekend. At 39.6 total hours, watching at a healthy 2 hours per day will take approximately 20 days.
Where can you stream or watch Space Brothers?
Space Brothers is available for streaming on Crunchyroll, Crunchyroll Amazon Channel. Availability may vary by regional territory, subscription tier, and digital purchase availability.
What is the official age rating for Space Brothers?
Space Brothers has an official content rating of TV-14.
Who are the lead actors in Space Brothers?
The primary ensemble cast includes Hiroaki Hirata as Mutta Nanba (voice) (age 63), KENN as Hibito Nanba (voice) (age 44), Masayuki Katou as Kenji Makabe (voice) (age 54), Miyuki Sawashiro as Serika Itou / Mutta Nanba as a Boy (voice) (age 41).
Ensemble Cast & Current Ages
Lead cast members, their character identities, and current ages calculated from official biographical records:
| Actor | Character | Current Age |
|---|---|---|
| Hiroaki Hirata | Mutta Nanba (voice) | 63 |
| KENN | Hibito Nanba (voice) | 44 |
| Masayuki Katou | Kenji Makabe (voice) | 54 |
| Miyuki Sawashiro | Serika Itou / Mutta Nanba as a Boy (voice) | 41 |
| Masako Ikeda | Sharon Kaneko (voice) | 87 (deceased) |
| Yuko Sanpei | Hibito Nanba as a Boy (voice) | 40 |
| Shô Ryûzanji | Tadashi Hoshika (voice) | 78 |
| Ryou Naitou | Yasushi Furuya (voice) | 52 |
Editorial Verification & Sources
All production facts, air dates, cast credentials, and streaming metadata for Space Brothers are compiled from official broadcaster archives, TMDB, and Wikidata records. Last verified on September 25, 2026.