Goldorak contre Great Mazinger (1976) Online
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.
| Credited cast: | |||
 | Hiroya Ishimaru | - | Koji Kabuto |
 | Chiyoko Kawashima | - | Hikaru Makiba |
| Keiichi Ogata | - | Blacky |
| Kazuko Sawada | - | Goro Makiba |
| Kôsei Tomita | - | Gandal Shirei |
| Kei Tomiyama | - | Duke Fleed / Daisuke Umon |
 | Jôji Yanami | - | Dr. Umon |