Red Rose Vertigo
Alucard meets a new enemy. that could be more powerful than he. An original undead, Incognito. And things take a drastic turn for the worst when Sir Integra's life is in jeopardy.
Aired 06/12/2001EP 9 - Red Rose Vertigo

2001
Hellsing
Hellsing follows the antiheroic vampire, Alucard, and a police girl-turned-vampire, Seras Victoria, two vampires employed by the vampire-extermination group of England, the Hellsing Organization. Slowly but surely, through their active duty, they find a new breed of vampires beginning to arise.
(Source: Anime News Network)