Gungrave - Season 1 - Eps 21: Duty
Dr. Tokioka risks his life to gather top secret information on the enemy's weaknesses, and Lee goes on a murderous rampage to avenge the death of his friend.
About Gungrave

Title: Gungrave
First Air Date: 2003-10-07
Last Air Date: 2004-03-30
Status: Ended
Rating: 7.4/10 (from 65 votes)
Language: JA
Seasons: 1
Total Episodes: 26
Network: TV Tokyo
Genres: Animation, Action & Adventure, Crime, Drama
Production Companies: Madhouse
Synopsis
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...
Cast

Masahiko Tanaka
Brad Wong (voice)

Motomu Kiyokawa
Dr. Tokioka (voice)

Michiko Neya
Sherry Walken (voice)

Tomokazu Seki
Brandon Heat (voice)

Kikuko Inoue
Maria Asagi (voice)

Iemasa Kayumi
Big Daddy (voice)

Takehito Koyasu
Balladbird Lee (voice)

Chafurin
Bob Poundmax (voice)

Fumihiko Tachiki
Bunji Kugashira (voice)

Tsutomu Isobe
Harry MacDowel (voice)