| Nanako Kaitai Shinsho Medical Comedy Love Action (1999/07/05-2000/03/03 OVA)
|
| Shichigusa Nanako | Yamamoto Maria |
| Oogami Kyouji | Koyasu Takehito |
| Saint | Seki Tomokazu |
| Haidou Naruse | Morikubo Shoutarou |
| Alan | Okiayu Ryoutarou |
| Oogami Jouji | Ootsuka Akio |
| Kuron | Yanami Jouji |
| Komanechi | Nishimura Chinami |
| Ueda Genki | Ugaki Hidenari |
| Maruo Hitoshi | Sakurai Toshiharu |
| Satsuki Kaoru | Katou Yuuko |
| Computer | Uehara Miyuki |