Hellsing (2006)  

Hellsing OVA, Hellsing Ultimate, Hellsing Ultimate OVA, Hellsing Ultimate Series, Helsingas OVA, HU, Хеллсинг OVA

There are creatures of darkness and wickedness that terrorize at night, consuming any unfortunate humans who cross their path. On the other hand, Hellsing is an organization dedicated to eliminating these supernatural threats that endanger humanity's existence. At its head is Integra Fairbrook Wingates Hellsing, a powerful military leader who spends her life fighting against the undead. Although her army is impressive, it pales in comparison to her ultimate weapon: Alucard, a vampire who works as an exterminator for Hellsing and battles both monsters and those who oppose them, whether they are good or evil. In this battle for mankind's survival, Hellsing Ultimate shows that appearances can be deceiving, and sometimes the greatest weapon is born from one's worst nightmare.

Hellsing Ultimate was initially licensed and distributed by Geneon Entertainment USA up until their closure in late 2007. FUNimation Entertainment later picked up the series and finished dubbing it in late 2014.