Space Brothers (2012) featured a cast of 10 tracked actors. Of these, 9 (90%) are still alive today and 1 have passed away. The oldest surviving cast member is Shô Ryûzanji, age 78. This TV series starred Hiroaki Hirata and KENN.
90% still with us· verified cast
Survivorship
Cast Reunion Index: 90% still living
Avg. Age at Death: 87 yrs
Deaths by Year
2026
Cast10 members
| Person | Character | Status | DOB | Age | DOD | Age in 2012 |
|---|---|---|---|---|---|---|
 Hiroaki Hirata Mutta Nanba (voice) | Mutta Nanba (voice) | Living | 07/08/1963 | 63 | — | 49 |
 KENN Hibito Nanba (voice) | Hibito Nanba (voice) | Living | 24/03/1982 | 44 | — | 30 |
 Masayuki Katou Kenji Makabe (voice) | Kenji Makabe (voice) | Living | 23/09/1972 | 54 | — | 40 |
 Miyuki Sawashiro Serika Itou / Mutta Nanba as a Boy (voice) | Serika Itou / Mutta Nanba as a Boy (voice) | Living | 02/06/1985 | 41 | — | 27 |
 Masako Ikeda Sharon Kaneko (voice) | Sharon Kaneko (voice) | Deceased | 01/01/1939 | 87 | 03/03/2026 | 73 |
 Yuko Sanpei Hibito Nanba as a Boy (voice) | Hibito Nanba as a Boy (voice) | Living | 28/02/1986 | 40 | — | 26 |
 Shô Ryûzanji Tadashi Hoshika (voice) | Tadashi Hoshika (voice) | Living | 02/11/1947 | 78 | — | 65 |
 Ryou Naitou Yasushi Furuya (voice) | Yasushi Furuya (voice) | Living | 22/06/1974 | 52 | — | 38 |
 Shintaro Asanuma Yamato Mizoguchi (voice) | Yamato Mizoguchi (voice) | Living | 05/01/1976 | 50 | — | 36 |
 Takanori Hoshino Reiji Nitta (voice) | Reiji Nitta (voice) | Living | 08/05/1980 | 46 | — | 32 |