Seras Victoria

Seras was originally a police officer who, along with the rest of her squad, was sent into the village of Cheddar, where a vampire disguised as (or possibly was formerly) a priest had taken control of the town and turned its inhabitants into ghouls (zombies). She was taken hostage by that priest vampire, who used her as a shield from Alucard, she was then given a "choice" by Alucard after shooting her through one of her lungs in order to kill the vampire: she could either die as a human, or be turned into a vampire herself, and live. She chose to live, and so Alucard turned her into a vampire, her virgin blood allowed her to successfully make the transition from human to vampire (non-virgin or same-sex vampire victims become ghouls- this aspect is only present in the original manga and the OVA series however; in the televised series, vampirism is simply determined by the will of the drinking vampire, and possibly by the victim being willing to make the change, and vampires can raise any newly dead humans nearby as ghouls). She was employed by the Hellsing Organization immediately afterwards, and it supplies all her needs such as sufficient blood for consumption and shelter secure from any daylight exposure. Seras is a strong willed woman, and apparently had always been since her childhood which is confirmed through flashbacks.

Seras Victoria is often considered a tomboy; a very brave, strong-willed and heroic young woman who often rejects following orders of her master that cross with her personal beliefs. However, she is a loyal and trustworthy soldier who will diligently follow the orders of her commander, provided said commander has proven his or her worth. Her level of maturity in comparison to the other characters is somewhat questionable; she seems to be the child the others could not be, yet possessing a sort of worldly maturity and superficial intelligence that most other characters lack, as well as a sort of 'nature winning against nurture' mentality, as opposed to most of other characters. She's the "light that stands out from the darkness" (quoting Kouta Hirano from a recent interview). Her actual age is not known but she is generally believed to be at least 18 and is popularly believed to be 19 or 20. The most possible is the latter, since she had already joined the police force at the beginning of the manga, making the age of 18 unlikely.

Seras's father, also a police officer, "got in too deep" during an undercover mission. The group he had infiltrated traced him back to his home and brutally murdered him. Her mother hid Seras in a closet and then walked out to face the criminals, who immediately killed her as well. A distraught Seras charged out and stabbed one of the criminals in the eye with a fork before being shot in the gut and thrown against a bloodstained wall. The flashback ends with Seras seeing glimpses of the criminals having sex with her mother's corpse. It was also shown that, after the ordeal in her orphanage, she threw a stone at another child for taking a toy she was playing with. Near the end of the flashback, Seras is told that she may be relocated if her violence continues, as the orphanage may not be able to care for her any longer. There, she expresses her strongest wish - to become a police officer.