Moira O'Deorain

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. 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 changes.

O'Deorain presents herself as being calm and logical, though in truth, she enjoys her science more when playing with hapless test subjects. She has not experimented on omnics...yet.

O'Deorain has a negative view of Overwatch, claiming that it was responsible for stifling scientific advancement for decades. She has no interest in global conquest, but is willing to work with those who might have such a goal. Her intellectual pursuits are driven by her interest in humanity. She is a geneticist first and foremost, and that's the scope of her ambition. With very flexible morals, O'Deorain prefers to focus on her research and has no patience for those who urge caution or restraint. She is uncaring of the goals of those she allies with, provided that they continue to fund her research.

Her right hand is heavily scarred; it has been speculated that it is a result of experimentation or a genetic anomaly.

As a scientist, O'Deorain only cared about the evolutionary advancement of humanity. Over a decade ago, she 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. Overwatch was among those who condemned her research, and in O'Deorain's own words, tried to silence her.

She received a lifeline in an offer from an unlikely source: Overwatch's covert ops division, Blackwatch. She was personally recruited by Blackwatch's commander, Gabriel Reyes, who wanted someone who could help advise him on matters pertaining to genetics. Her employment was kept a closely guarded secret.

She continued her work in the shadows while developing new weapons and technologies for the organization. Freed from her shackles, her genetic research greatly accelerated. She had interactions with Blackwatch members Jesse McCree and Genji Shimada, all of whom had their likes and dislikes pertaining to each other. Among her experiments was one done on Reyes himself. Her experiments on Reyes gave him super-human abilities, causing his cells to regenerate and decay at a hyper-accelerated rate.[

Moira is incredibly smart, serious, condescending and sassy.
She is not afraid of using her words to attack others, often using irony in her advance