Drifters is the awesome new anime from the mind of Hellsing creator Kouta Hirano
Amazon.com: Drifters: The Complete Series [Blu-ray] : Josh Grelle, Aaron Roberts, Anthony Bowling, Apphia Yu, Chris Patton, Christopher Bevins, Christopher R. Sabat, Colleen Clinkenbeard, David Wald, Greg Ayres, Gwendolyn Lau, J. Michael