Hellsing

Sir Integra Fairbrook Wingates Hellsing commands the Hellsing Organization, a secret branch of the British government tasked with destroying vampires and other undead threats to the Crown. Her most powerful weapon is Alucard, an ancient vampire bound to the Hellsing family, who takes a newly turned police officer named Seras Victoria as his fledgling. When a wave of artificial vampires begins sweeping through England, Integra deploys Alucard and Seras to trace the source.