It is revealed in Alucard's flashback in Chapter 70 of Hellsing, Castlevania (2) that he was enslaved by Ottoman conquerors when he was a child and sodomized by a high ruler. During the whole ordeal, he defiantly clenched a silver cross. When he became the Voivode of Wallachia, he launched an all-out war on the Turks which devastated both sides. Eventually, his troops were defeated, his people were killed (although mostly executed by his own hands), and his homeland was set ablaze. Vlad himself was to be executed. However, before he was beheaded, he drank of the blood from the battlefield and became a true vampire. When he accepted the powers of darkness, the silver cross he had always carried with him shattered. Centuries later, in 1897, the events of Bram Stoker's Dracula unfold in the backstory of Hellsing. Abraham Van Helsing, Arthur Holmwood, Quincey Morris, and Jack Seward (Jonathan Harker, the last member of their group, is left out of the Hellsing version of the story) were able to defeat Count Dracula and kill those who served him.
He now goes by a new name, Alucard, as given to him by Arthur Hellsing, Integra's father. Alucard, along with a 14-year-old Walter C. Dornez, is sent on a mission to Warsaw, Poland, to stop Millennium's vampire production program. Decades later, in 1969, Alucard was imprisoned in a dungeon in Hellsing manor by Arthur. According to Sir Hugh Irons, Arthur Hellsing came to believe that Alucard was "too powerful a drug to be used as more than the occasional medicine.
Power Abilities:
Immortality:This ability is rather ambiguous, as Alucard himself has stated that immortality is a myth. However, what it most likely refers to is the human souls inside Alucard; it has been speculated that, when damaged with exceedingly holy weapons or a blow that might have killed or incapacitated him, is instead directed to his reservoir of souls. Though not directly the case, after Nail of Helena Anderson destroyed the rest of Level 0, Alucard was still able to regenerate on par with him. ( Which was on par with Alucard before releasing Level 0. This contradicts the souls being his supply of immortality and regeneration theory, because he had released every soul inside him to fight for, and with him, and yet was still able to regenerate, even after all the souls were defeated by Nail of Helena Anderson. It is apparent because after his duel with Walter, Alucard states he's now "hungry", and starts to absorb the dead city of London.
Regeneration: Alucard's ability to regenerate is considerably greater than any other vampire's. He has regenerated from a pool of blood and from being blown to shreds by gunfire, incinerated completely, etc. When damaged to an extreme extent, his body simply turns into a shadow-like substance and reconstitutes.
Superhuman Accuracy: Alucard has been known to hit targets at great range using handguns while looking the other way. He does this by using his so called 'third eye'. He states that "if you shoot like humans do, you'll only miss like they do.".
Superhuman Strength: The extent is unknown, but Alucard can physically rip humans and vampires apart with ease. He also ripped through Tubalcain Alhambra's card which was strong and dense enough to slice through uranium.
Superhuman Speed: He can move faster than can be seen, and is faster than Mach Speed.
Superhuman Reflexes: He caught a magic bullet within his mouth [which tore through an SR-71 (which is made of multiple alloys, including VARIOUS amounts of titanium) and crushed it within his teeth].
Intangibility: The ability to pass through solid objects.
Superhuman Agility: The ability to defy gravity to an uncertain limit. He is also seen leaping impossible distances and can go up vertical surfaces.
Shadow Manipulation: Manipulation of shadows into physical form.
Shape-Shifting: Alucard can transform himself or parts of himself into bats, insects, snakes, hell hounds, other human forms including a little girl, an amorphous mass of darkness, and many other forms. Alucard has four known human forms, each with different characteristics and weapons. He also states that his form means nothing and that he can take any form that he chooses.
Weather Control: The ability to control the weather to an unknown limit, as demonstrated by the fog created when he returned to London aboard the H.M.S Eagle, although this might have been telekinesis.
Teleportation: The ability to dissappear and reappear somewhere else.
Telekinesis: In the manga, Alucard uses telekinesis to close a door on a fleeing swat officer, as well as throwing six or more other swat officers through glass doors and navigating them to flag poles where they are impaled. Alucard is later seen moving a broken down air-craft carrier from the Gulf of Italy to the Dover of London all in a little less than 40 minutes, only traveling at a few knots. Maxwell states that the air-craft carrier shouldn't be moving, and that he was amazed it was, especially since a recon jet ( the SR-71 ) was impaled in the air-craft carrier's flight-deck.
Telepathy: Alucard can speak telepathically to his fledgling.
Mind Reading
Mind Control and Hypnosis: (fans sometimes call it the "Sex Beam" after a remark from Pip).
Summoning: The ability to summon familiars, the souls of those whose blood he has sucked in a variety of forms that either sprout from his body or swarm around him as an army numbering in the millions. These familiars can also include animals such as horses and the weapons and abilities that the familiars possessed in life, but Alucard can only use this ability when control art restriction system level zero is released.
Blood Sucking: The ability to suck a person's blood and absorb their soul and, consequently, their knowledge and memories. (He learns more about Millennium after absorbing Tubalcain.) He can also absorb blood through his clothes and skin, as he does with Luke Valentine's blood after his hell hound had eaten Luke's body.
Hibernation: Alucard is able to survive long periods of time without consuming blood, but is able to fight at a usual level of strength after drinking even the smallest bit of blood.
Immunity to Vampiric Weakness: His abilities and health are not in any way compromised by such things as sunlight or silver. In fact, it appears that the only weapons capable of harming him to any real extent are the most holy of Christian artifacts, such as Father Anderson after augmenting his abilities with Helena's Nail (a nail which was from the True Cross which crucified Jesus Christ and was blessed in his blood).
'Supernatural Sense': The ability to sense supernatural activity (In The Dawn, a prequel to Hellsing. Alucard knew the Captain was a werewolf the moment he saw him, and in the OVA, could see the blessings on Father Anderson's bayonets).
Combat Experience: In addition to his superhuman abilities, Alucard also possess centuries of combat experience. While he usually relies on crushing his opponents with sheer power, he does at times use strategy. When he fought Alhambra, Alucard used shadow duplicates to distract him, allowing Alucard to close the distance between them and deliver the death blow.
