Hellsing Ultimate is a oVA anime that premiered in winter 2006, produced by MADHOUSE.

About the production: the story comes from a manga, there are 10 episodes of about 50 minutes and its current status is "finished".

Its main genres are action, horror and supernatural, with themes such as Vampire, Gore, Seinen and War.

On AniList, Hellsing Ultimate has an average score of 81%, a very good score, and appears on 189,377 users' lists.

The franchise continues in or follows from: HELLSING: THE DAWN.

Hellsing, a secret organization of the British government, has long been battling supernatural threats to keep the people safe from creatures of the night. The current leader, Integra Wingates Hellsing controls her own personal army to eliminate the undead beings, but even her highly trained soldiers pale in comparison to her most trusted vampire exterminator, a man by the name of Alucard, who is actually a powerful vampire himself. Along with Integra's mysterious butler and Alucard's new vampire minion, Seras Victoria, The Hellsing Organization must face not only regular ghouls and vampires, but a rivaling secret organization from the Vatican, and Millennium, an enigmatic group of madmen spawned by a certain war over 50 years ago... A bloody battle between monsters is about to begin, the dead are dancing, and all hell is singing...

Official synopsis from AniList.