Overview
Alien invaders take over Great Mazinger who is at the entrance of a museum next to Mazinger Z as symbols of peace. Grendizer fights the evil invaders and Great Mazinger is recovered. When the Vegan empire dispatches a new general to oversee the takeover of Earth, he quickly manages to capture Koji Kabuto and, learning of Great Mazinger through interrogation, quickly commandeers it from a museum where it was kept as a symbol of peace. It is now up to Duke Fleed aboard Grendizer to stop humanity's former defender from becoming its destroyer.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 37 | September 25, 1995 (56) | |
 | 44 | December 3, 2021 (90) | |
 | 35 | 84 | |
 | 21 | 71 | |
 | 35 | 84 | |
 | 33 | 83 | |
 | 40 | September 27, 2020 (84) | |
 | 32 | 81 |