Cast[]
| Image | Character | Seiyū | Dub Actor |
|---|---|---|---|
| Masaki Murakami | Mitsuaki Madono | Andrew Love | |
| Agito Makishima/Guyver III | Katsuyuki Konishi | Brian Jepson | |
| Sho Fukamachi/Guyver I | Kenji Nojima | Chris Patton | |
| Tetsuro Segawa | Kousuke Takaguchi | Lowell Bartholomee | |
| Mizuki Segawa | Nana Mizuki | Luci Christian | |
| Richard Guyot | Kinryuu Arimoto | Bill Wise | |
| Archanfel | Yasunori Matsumoto | Gray Haddock | |
| Toshiaki Hayami/Bio-Freezer | Takeharu Onishi | Illich Guardiola | |
| Oswald A. Lisker/Guyver II | Unshō Ishizuka | Jason Douglas | |
| Natsuki Taba | Tomo Adachi | Kira Vincent-Davis | |
| Dr. Hamilcar Barcas | Saburo Kamei | Klaus Vaux | |
| Yohei Onuma | Tomohisa Asou | Phil Ross | |
| Aptom | Tetsu Inada | Robert Kraft |