Voice Actors
I'm only going to list the English voice cast. Geneon might've ruined Saiyuki with their voice actors but they finally made use of them in Gungrave. Some people are missing because I decided to list only characters that played some type of role. This will always be updated until noted otherwise. I'll remember the major players eventually.

At the Start
Kirk Thornton as Brandon Heat
Tony Oliver as Young Harry MacDowell
Abe Lasser as Geezer MacDowell
Dave Lelyveld as Kenny
Lex Lang as Ladd and Nathan
Michelle Ruff as Maria Asagi
William Frederick as Dr. Tokioka

Millenion People
John Daniels as Bear Walken
Steve Kramer as Randy
Michael McConnohie as Big Daddy
Andrew Watton as Balladbird Lee
Melvin Katt as Bob Poundmax

Other Baddies
Jamieson Price as Blood War
Lex lang as Bunji Kugashira
Jackson Daniels as Laguna Glock

People You Don't Give a Damn About
Key Jensen as Mika Asagi
William Frederick as Butler Tokioka