Hellsing

From Dark Horse:
With supernatural horrors haunting the streets and preying upon humanity, the shadowy Hellsing Organization fights back against hell’s minions. Hellsing’s secret weapon? Alucard, a vampire lord of immense power, specially trained and equipped to destroy the undead. But vast evil forces are on the march, and even the agents of Hellsing may not be able to stem the black tide that threatens to engulf England and all humanity!