Sanpei has opened the door to the world of the kappa.
| Crew | Shigeru Mizuki | Creator |
| Directing | Minoru Yamada | Director |
| Production | Tôru Hirayama | Producer |
| Production | Yoriteru Saito | Producer |
| Production | Shinichi Miyazaki | Producer |
| Writing | Masaru Igami | Screenplay |
| Camera | Yoshiharu Aihara | Director of Photography |
| Art | Shio Fukino | Art Direction |
| Editing | Katsuo Ibuki | Editor |
| Sound | Asei Kobayashi | Music |
| Crew | Yasuo Ogawa | Special Effects |
| Crew | Yasuaki Nakamura | Special Effects |
| Crew | Yukihiko Hoshino | Special Effects |
| Crew | Shigeru Inoue | Special Effects |
| Crew | Masamitsu Sakuma | Special Effects |
| Crew | Akira Kuji | Fight Choreographer |
| Directing | Hiroshige Kojima | Assistant Director |
