| Series: | Mazinger |
| Name: | Grand Mazinkaiser |
| Owner: | Gokai White(original concept) |
| Previous Episode: | Mazinkaiser vs Ankoku DaiShogun |
| Next Episode: | None |
Grand Mazinkaiser is a two-part OVA sequel to Mazinkaiser vs Ankoku DaiShogun, split in two halves tentatively subtitled Alpha and Omega.
Though the idea for the OVA was recently conceptualized by GokaiWhite, he is currently planning on handing control of the project over to another individual/ creative team, while still providing his own input.
Cast[]
| Character | Japanese Voice | English Voice | Series |
| Koji Kabuto | Hiroya Ishimaru | Andrew Bowen | |
| Sayaka Yumi | Ai Uchikawa | April Stewart | |
| Boss | Fumihiko Tachiki | Danny Tamberelli | |
| Shiro Kabuto | Ai Orikasa or Aya Hirano | Antony Del Rio | |
| Tetsuya Tsurugi | Hiroshi Yanaka | Crispin Freeman | |
| Duke Fleed | Hideyuki Tanaka | ||
| Oren* | Grand Mazinkaiser | ||
*Original Character
| Robot | Pilot(s) | Alignment |
| Mazinger Z | Koji Kabuto | good |
| Great Mazinger | Tetsuya Tsurugi | good |
| Mazinkaiser | Koji Kabuto, Oren(temporarily) | good |
| (Super) Venus A | Sayaka Yumi | |
| Boss Borot | Boss | |
| Robot Jr. | Shiro Kabuto | |
| Steel Jeeg | ||
| Getter Robo | ||
| Getter Robo G | ||
| Getter Robo Go | ||
| Shin Getter Robo | ||
| Grendizer | Duke Fleed | |
"Grand Mazinkaiser: Alpha" plot[]
A great and powerful man name Oren has arrived on Earth and wants to take down Koji Kabuto, making him no longer able to protect the Earth with Mazinkaiser.
"Grand Mazinkaiser: Omega" plot[]
The Great Emperor of Darkness has begun his final attack on Earth, and Team Mazinger has to stop him, with some help from other super robots.
Trivia[]
- Much like it's predecessor, characters from Go Nagai's other works (Grendizer, Steel Jeeg, Getter Robo, and Cutey Honey) are to appear in Grand Mazinkaiser.
- The newly upgraded Super Venus A resembles a robotic fusion of Kekko Kamen and Cutey Honey(both the title character and the giant robot from Mazinger Angels).
- The OVA will also have references and homages to the God of War series and Devil May Cry series.