Based on the comic by Tetsu Kariya.
| Actor | Role |
|---|---|
 Masato HoshiRyu Zenjiro | Ryu Zenjiro |
 Akira NishikinoKosuke Nakajo | Kosuke Nakajo |
| SSatoko YamaguchiNot listed | Not listed |
| JJo ShiraishiNot listed | Not listed |
| TTōru OkazakiNot listed | Not listed |
| KKintaro HinoshitaNot listed | Not listed |
| EEmi HayakawaNot listed | Not listed |
| HHisako TanakaNot listed | Not listed |
 Hideo MurotaPrincipal Ryuji Shirai | Principal Ryuji Shirai |
| TTatsuya NanjoProfessor Otani | Professor Otani |
 Hiroshi KondōPrison Director | Prison Director |
 Keisuke NoroPrison Guard | Prison Guard |
 Asao UchidaSoichiro Shinryu | Soichiro Shinryu |
| AAkane KijimaNot listed | Not listed |
| TTakayuki SendaNot listed | Not listed |
| DDai YukiNot listed | Not listed |
 Genji KawaiNot listed | Not listed |
 Koji NanjoGoji Shinryu | Goji Shinryu |
| CChū TakatsukiGoro Osugi | Goro Osugi |
 Sanpei GodaiNot listed | Not listed |