SherryBirkin

Date of birth: 1986
Blood type: O
Gender:Female
Race/Nationality: Caucasian
Status: Alive
Sherry Birkin was the daughter of William and Annette Birkin who became an agent of the US Federal Government in her adulthood.

Biography
Sherry Birkin was born around 1986 to Umbrella Corporation top scientist William Birkin, and his assistant and new wife, Annette. Due to their key participation of developing biological weapons for Umbrella, William and Annette's work schedules were very intense and busy, and as such weren't around as Sherry grew up. Nevertheless, she loved her parents very much and enjoyed spending whatever time she had with them, with her parents feeling the same way.
In 1995, William and Annette were transferred from the Arklay Laboratory to a newly-constructed underground laboratory in the outskirts of Raccoon City to finish William's work on a new biological weapon called the G-virus.
Raccoon City
“ But there's something out there...I don't know what it is, but I saw it! Much larger than any of those zombies and it's coming after me!”
Finished in mid-1998, William refused to hand the virus over to Umbrella, instead preferring to hand the virus over to the U.S. Government in exchange for a larger reward. As such, a special forces unit was sent in to forcefully retrieve the G-virus, which was done after fatally injuring William in a hailstorm of bullets. Knowing he was about to die, William injected himself with the G-virus, turning into a hideous monstrosity, hunting down and killing or crippling[2] all but one of his assailants. As he did so, several vials containing the Tyrant virus; kept in a sample case stolen by the Umbrella soldiers, were scattered on the ground and broke. Rats interacting with and consuming the liquids proceeded to carry the infection to the rest of the city.

Sherry as she appeared during the Raccoon City Incident; 1998.Sherry remained unaware of this; especially the fact that Raccoon City was to be totally consumed with zombies in a matter of days. Annette contacted her daughter at her school; East Raccoon Elementary, and implored her to head home immediately. Upon reaching their house, Annette asked Sherry to retrieve her locket from a jewellery box and quickly seek refuge in the Raccoon City Police Department, warning her not to speak to anyone. Unfortunately for Sherry, by this time the police station too had been overrun and most of its personnel were now undead. Sherry complied with her mothers request and made her way to the station, unaware of this latest development, and remained in hiding, seeking sanctuary from the zombies, Umbrella's escaped B.O.W.s, and later her mutated father. Soon, Sherry encountered another survivor; Claire Redfield (while searching for her missing brother Chris Redfield). With Sherry gaining Claire's protection and friendship, the two worked together to escape the infested precinct.
As Sherry and Claire looked for a way out of the city, they were continuously stalked by the mutated Birkin. While inside the sewers, Sherry and Claire were separated. While exploring the sewers, she was able to slip by the monsters through a series of shafts and eventually found a Wolf Medal. However, what she had not realized was that the floor she had been standing on was used to dispose of trash, and was thus, collapsible. With her added weight the floor drop opened causing Sherry to fall deeper into the sewers depths. Although filled-up bags of trash broke her fall, the shock of the impact as well as the position she fell still knocked her out. Unconscious, she was unable to protect herself against her mutated father and was implanted with a G-embryo.

Sherry in the infirmary after being implanted with the G-Virus embryo. Note Claire's jacket.
Upon reuniting with Claire, Sherry began to experience an intense pain in her stomach. Claire quickly recognized the symptoms from her experiences with the G-embryo before, but due to Sherry's direct relation to her father, she was a compatible host and her body did not reject it like Chief Iron's had. After finding a safe place for her to rest, Claire attempted to find a cure for Sherry within Umbrella's underground labs. While in the laboratory, Claire ran into Annette one more time, before William arrived and fatally wounded her. Before dying, Annette gave Claire the instructions for creating the G-Virus antidote, DEVIL. Soon after creating the antidote, Claire attempted to make her escape, having Leon take Sherry to an escape train before the lab self destructed.
Her escape, however, was thwarted once again by Birkin, forcing her to fight the monster and incapacitate it. Claire then rushed to the train, joining Leon, and successfully administering the vaccine to Sherry. Unfortunately, Birkin, now a gigantic, amorphous blob, attacked the train, thus triggering another self-destruct sequence. Claire, Leon, and Sherry escape moments before the train exploded, destroying Birkin once and for all.
[i][/i]

Government protection
Upon their escape, Claire left on her own to find her brother,leaving her prized pink vest as a reminder of their time together. Leon and Sherry were eventually rescued by U.S. official authorities and Sherry's safety was used to force Leon into becoming a government agent.[4] While Leon and Claire went off to continue the fight against Umbrella, Sherry was kept relatively safe in the governments care, though Albert Wesker had spies working within keeping an eye on her.
After years under house arrest, Sherry was offered her freedom but it would come at a cost: she would also have to become a government agent.
2013
Agent Sherry Birkin.After being infected with the G-embryo from her father, William Birkin, Sherry was turned into an “object” of strict surveillance by the US. Several years later, running out of options, Sherry’s only bargaining card out of her captivity was to become an agent for the US. She never wants to be seen as the person she once was, to continue on stuck in the past without any future for her, ever again. Having kept deeply inside her a small hope, Sherry receives her orders now that she has entered the realm of agents. Her mandate is to sneak in the war-zone of the republic of Edonia, situated in Eastern Europe, and ensure the safety of a man, under the name of Jake Muller, who allegedly has been carrying some sort of special bloodtype.