Cast & crew
Overman King Gainer (2002)
Directed by Yoshiyuki Tomino
Cast
| Otoya Kawano | Gain |
| Takehito Koyasu | Boone |
| Toshiko Sawada | Lane |
| Takashi Nakamura | Zacchi |
| Hirofumi Nojima | Gainer |
| Ai Kobayashi | Kodama |
| Tadahisa Saizen | Toun |
| Noriko Kitou | Ana |
Crew
| Yoshiyuki Tomino | Director |
| Ichiro Okouchi | Series Composition |
| Akira Yasuda | Mechanical Designer |
| Kenichi Yoshida | Character Designer |
| Yoshiki Fukuyama | Theme Song Performance |
| Kenichi Yoshida | Animation Director |
| Yoshiyuki Tomino | Original Story |
| Masashi Ando | Animation |