Alucard was an ancient and powerful vampire in the service of the Royal Order of Protestant Knights.
Alucard was born in the winter of 1431 as Vlad III Dracula, the son of Vlad II Dracul. He later became known as Vlad Ţepeş (Vlad the Impaler), and as Kazıklı Bey (the Impaling Prince) by the Turks. He lived and reigned intermittently as the voivod of Wallachia until his "death" in 1476, at the age of 45. How he became a vampire is unknown. As he had married and was believed to have had three sons, it seems unlikely that it was through to more common method.
Centuries later, in 1893, Vlad left his crumbling estate in Transylvania and traveled to England where he was known simply as Count Dracula. After menacing the local population and attempting to turn Wilhelmina Murray into a vampire, he was stopped by Abraham Van Helsing, who drove a stake through his heart. This did not kill Dracula, however, the weakened count was forced into the servitude of Helsing's family.
The next known account of Alucard's life is during World War II, in 1944. Count Dracula now went by a new name given to him by Integra's father, Sir Arthur Hellsing, which was Alucard. Alucard, along with a 14-year-old Walter C. Dornez, was sent to Warsaw, Poland, to stop Millennium's vampire production program. The results of this mission are largely unknown. Decades later, in 1969, Alucard was imprisoned in a dungeon in Hellsing manor by Arthur, who came to believe that Alucard was "too powerful a drug to be used as more than the occasional medicine". Shortly after Arthur's death in 1989, Alucard was awakened and resuscitated by Integra's blood when she came to his cell seeking rescue and her shoulder was clipped by a bullet. After just 20 years of imprisonment, Alucard saved Integra (then only 13 years old) from her traitorous uncle, Richard, and became her servant.
- Alucard, in both a flashback to 1893 and the time in which the story takes place, appears more like the character of Dracula as he appears in most often in media rather than the character in the Bram Stoker's novel. However, he looks far younger.