|First game||Street Fighter EX2|
Sharon was entrusted to a monastery when she was still an infant. As she grew up, Sharon would began lead a double life, working as an A-class agent for a secret intelligence organization, as well as a nun raising orphans at the monastery she was raised at. Having never known her true parents, Sharon spent everyday wondering who they were and whatever happened to them.
One day, Sharon's superiors gave her orders to assassinate a certain individual from a neighboring country. While investigating the crime syndicate her target belonged to, she learned that one of the group's key member has the same rose tattoo she has on her chest. Sharon decided to disregard her duty and infiltrated the syndicate to ascertain the identity of this individual and whether or not the person was related to her. While chasing the person with the rose tattoo, she approached the mastermind of the organization. However, she was unable to capture either. The person with the rose tattoo had the same abilities and fighting style Sharon had, managing to overpower her. For insubordination against her organization, as well as defying her monastery's commandment on pursuing personal vendettas, Sharon was placed on house arrest for a month. After serving her sentence, Sharon went on to continue her search for the person with the rose tattoo.
She carries a handgun with her but seldom uses it so as to give her opponent a fair fight. She is a practitioner of savate and is one of the fast characters in the EX series. Her signature moves are Hell Fire and Assault Rifle which she performs using her pistol and her rifle respectively. Sharon is the only Street Fighter character to not only use a gun (possibly Glock or H&K USP) in battle, but also an assault rifle M16 A2 as well. However, she requires two levels of super meter every time the player wishes to fire the handgun, as the first time she performs Hellfire simply causes her to load and cock the slide.