500 Million Year Button (2022) featured a cast of 8 tracked actors. Of these, 8 (100%) are still alive today. The oldest surviving cast member is Masako Nozawa, age 89. This TV series starred Masako Nozawa and Suzuko Mimori.
100% still with us· verified cast
Survivorship
Cast Reunion Index: 100% still living
Cast8 members
| Person | Character | Status | DOB | Age | DOD | Age in 2022 |
|---|---|---|---|---|---|---|
 Masako Nozawa Tonio (voice) | Tonio (voice) | Living | 25/10/1936 | 89 | — | 86 |
 Suzuko Mimori Jaimi (voice) | Jaimi (voice) | Living | 28/06/1986 | 40 | — | 36 |
 Naomi Ohzora Suneko (voice) | Suneko (voice) | Living | 04/02/1989 | 37 | — | 33 |
 Marika Kouno Dr. Inoue | Dr. Inoue | Living | 22/02/1994 | 32 | — | 28 |
 Hina Youmiya Hana-chan (voice) | Hana-chan (voice) | Living | 26/03/2000 | 26 | — | 22 |
 Shiori Mikami Unko-chan (voice) | Unko-chan (voice) | Living | 06/01/1989 | 37 | — | 33 |
 Volcano Ota Dragon (voice) | Dragon (voice) | Living | 02/01/1971 | 55 | — | 51 |
 Banjo Ginga Narrator (voice) | Narrator (voice) | Living | 12/11/1948 | 77 | — | 74 |