Gungrave
ガングレイヴ (original)
For Brandon Heat, death doesn't matter. Driven by his need for revenge, he returns from beyond the grave to cripple Milleneon, the huge mafia organization which uses undead monsters as its enforcers. His ultimate goal is to destroy Harry MacDowel, the leader of Milleneon and, at one time, Brandon's best friend...
Starring Masahiko Tanaka, Motomu Kiyokawa, Michiko Neya, Tomokazu Seki, Kikuko Inoue, Iemasa Kayumi, Takehito Koyasu, Chafurin, Fumihiko Tachiki, Tsutomu Isobe
It's a animation and crime show, and has a rating of 7.9 out of 10 from Imdb which is usually fine for this kind of show.
Watch it here
Not found streaming from United Kingdom.