Order 01: Vampire Hunter

"Vampire Hunter" is the first chapter of Hellsing. In the anime, this chapter was adapted in episode 1: "The Undead" and the OVA in its first volume along with Sword Dancer.

Plot
An unnamed Priest has arrived and later, kidnapped and killed many people and its first victim is a child in Cheddar Village. Later on, Integra Hellsing takes command of a small Hellsing unit in Cheddar after hearing reports of people in the village going missing. After D11 teams were deployed to investigate with several deaths, Alucard is deployed. Seras Victoria, a female D11 operator, is forced to fight her ex-D11 colleagues that are now turned into Ghouls. Seras found herself trapped between the vampire priest and his army of Police Ghouls, fully equipped with armors and guns. Luckily, Alucard, Hellsing's Agent, comes to the rescue and kills the remaining Ghouls, but found himself forced to shoot Seras Victoria to kill the vampire priest. Alucard decides to turn Seras into his servant, and later brings her to Integra, whom was frustrated at Alucard.

Characters (In Order of Appearance)

 * Alucard
 * Cheddar Priest
 * Sir Integra Fairbrook Wingates Hellsing
 * Seras Victoria

Manga and Anime Differences

 * The Anime adds an extra scene of Alucard, killing a vampire prostitute.
 * The Cheddar Priest's origins is removed in the Anime.
 * In the Anime, Seras was turned into a ghoul on a church instead of outside in the forest.
 * The comedic scenes in the end is removed in the Anime.

Manga and OVA Differences

 * The OVA omitted Cheddar Priest's backstory.
 * Alucard now falls backwards.
 * The OVA removes Integra's reaction towards Alucard's actions in turning Seras Victoria into a Ghoul.

Trivia

 * Alucard's design is way different from future chapters of the Manga. Here, he looks like the main character from series Trigun, Vash the Stampede. Specifically the iconic red coat, the classic orange glasses.