A lone-wolf detective known as "The Shark" must navigate hostile territory within both the criminal underworld and his own corrupt department to hunt down a ruthless serial cop-killer in the streets of Shinjuku. Adaptation of the Arimasa Ohsawa novel Shinjuku Shark.
| Actor | Role |
|---|---|
 Hiroyuki SanadaTakashi Samejima | Takashi Samejima |
 Minako TanakaAkira | Akira |
 Hideo MurotaSection Chief Momoi | Section Chief Momoi |
 Eiji OkudaKaname Kizu | Kaname Kizu |
 Shigeru YazakiBush | Bush |
 Masayuki ImaiSuperintendent Koda | Superintendent Koda |
| YYasuhiro AraiYoshikawa | Yoshikawa |
 Tadanobu AsanoKoichi Sunagami | Koichi Sunagami |
 Takashi MatsuoEd | Ed |
 Tadao NakamaruSuperintendent Fujimaru | Superintendent Fujimaru |
 Sansei ShiomiNishio | Nishio |
 Kimiko YoSuzuki | Suzuki |
 Ren OsugiGun Shop Owner | Gun Shop Owner |
| SShoji MaruokaSamejima's colleagues | Samejima's colleagues |
| NNaomasa RokuheiPolice Officer in the Sauna | Police Officer in the Sauna |
 Yousuke SaitoNot listed | Not listed |