Moria is a support villan in overwatch\
Bio
Equal parts brilliant and controversial, scientist Moira O'Deorain is on the cutting edge of genetic engineering, searching for a way to rewrite the fundamental building blocks of life.
Over a decade ago, O'Deorain made waves when she published a controversial paper detailing a methodology for creating custom genetic programs that could alter DNA at a cellular level. It seemed like a promising step toward overcoming diseases and disorders and maximizing human potential.
Dissent among her peers soon followed. Many considered her work to be dangerous because of its perceived ethical shortfalls, and O'Deorain was even accused of having the same unchecked desire for scientific advancement that some believed had caused the Omnic Crisis. In addition, other geneticists were unable to reproduce the results of Moira's research, which further called her discoveries into question. Instead of kickstarting her career, her paper seriously damaged her reputation.
She received a lifeline in an offer from an unlikely source: Overwatch's covert ops division, Blackwatch. She continued her work in the shadows while developing new weapons and technologies for the organization. Her employment was a closely kept secret, until it was uncovered during inquiries following the Venice incident. Many high-ranking Overwatch officials disavowed all knowledge of her affiliation with them.
After Overwatch was disbanded, O'Deorain was forced to turn to unconventional sources of funding. This time, she was invited to join the scientific collective that had founded the city of Oasis. Yet some have whispered that the shadowy Talon organization had already been supporting her for years, aiding her experiments in exchange for utilizing the results for their own purposes. Though O'Deorain will go to any lengths to make scientific breakthroughs, her work is still unknown to most of the world. But now that she has been freed from all constraints, it is only a matter of time before everything
Personality
Like many of the other scientists represented in the game, Moira has an outward passion for science and the advancement thereof; however, unlike Mei and Winston, who are both bright-eyed individuals with altruistic motives for their respective researches, and unlike Mercy, who puts the lives and feelings of others before her, Moira doesn't have much in the way of limitations when it comes to how far she'll go in her experiments. She's tested on animals, she's tested on herself, and it was only through the involvement of Blackwatch - and later Oasis and Talon - that she was able to continue her research unimpeded.
In game, Moira gives an air of superiority, especially in her voice lines ("Stupidity is not a right."; "Injured again?"; "Unsightly.") She also doesn't show much in the way of emotion, preferring to act in a state of constant disdain at her surroundings; she will, however, take sadistic pleasure in siphoning the life force of her enemies. Perhaps somewhat oddly for a villain in Overwatch, she seems to take either a neutral or positive stance towards Omnics (though this sentiment is shared by fellow Talon member Doomfist to an extent), as she reflects upon London's "medieval" attitudes towards them when she first spawns in King's Row occasionally.
Jeff Kaplan describes her as "weirdly self-obsessed more than anything" and has a thirst and hunger for knowledge and she doesn't really care about the outcomes of her scientific decisions. He also jokingly described her as "chaotic neutral" which originates from D&D Alignment.