Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster (1976) featured a cast of 9 tracked actors. Of these, 5 (56%) are still alive today and 4 have passed away. The oldest surviving cast member is Hiroya Ishimaru, age 85. This film starred Akira Kamiya and Hiroya Ishimaru.
56% still with us· verified cast
Survivorship
Cast Reunion Index: 56% still living
Avg. Age at Death: 80 yrs
Deaths by Year
1995
2020
2021
2022
Cast9 members
| Person | Character | Status | DOB | Age | DOD | Age in 1976 |
|---|---|---|---|---|---|---|
 Akira Kamiya Ryo Nagare | Ryo Nagare | Living | 18/09/1946 | 80 | — | 30 |
 Hiroya Ishimaru Kôji Kabuto | Kôji Kabuto | Living | 12/02/1941 | 85 | — | 35 |
 Keaton Yamada Hayato Jin | Hayato Jin | Living | 25/10/1945 | 80 | — | 31 |
 Kei Tomiyama Daisuke Umon / Duke Fleed | Daisuke Umon / Duke Fleed | Deceased | 31/10/1938 | 56 | 25/09/1995 | 38 |
 Keiichi Noda Tetsuya Tsurugi | Tetsuya Tsurugi | Living | 14/09/1943 | 83 | — | 33 |
 Joji Yanami Dr. Umon / Professor Yumi | Dr. Umon / Professor Yumi | Deceased | 30/08/1931 | 90 | 03/12/2021 | 45 |
 Rihoko Yoshida Michiru Saotome | Michiru Saotome | Living | 24/01/1949 | 77 | — | 27 |
 Hiroshi Otake Boss | Boss | Deceased | 14/03/1932 | 90 | 01/08/2022 | 44 |
 Kosei Tomita Dr. Saotome | Dr. Saotome | Deceased | 04/02/1936 | 84 | 27/09/2020 | 40 |