Updated character proposal 5/3/2015:
Throwing my hat in the proverbial ring-- Ally Rodriguez, aka Fetter
Ally was raised on-base in Ft. Bragg, Pine Gap, Stuttgart-- an all-American army brat with a healthy rebellious streak. She was an accomplished athlete even in her youth, and by her teenage years it looked as though she was destined for a college scholarship despite her unremarkable grades. Reacting, perhaps, to her rigid home-life, she sometimes had trouble toeing the line and had her share of discipline issues. She had two brothers, many base friends, a few semi-serious boyfriends, a Boston Terrier-- but most things were normal, and she cached her daddy issues in favor of the distractions of teenage life.
Her life fell apart, however, when her father, a decorated Ranger, was recruited for a physiological enhancement program. Aimed at producing soldiers capable of contending with the super-powered villains who had begun to emerge as a threat to national security, the program's effects were immediately successful, producing stronger, faster, quicker-thinking troops who were capable of enduring increasing dangers and surviving. After a few months of intensive training, her father returned to normal base life-- but things didn't stay normal.
As time went on, aberrations in each recruit's powers seemed to appear, as well as changes in their behavior-- inhuman strength coupled with paranoid rage, x-ray vision coincided with personality changes, heat resistance manifested along with perversions and abnormal appetite. Things got out of hand; a subject on-base with Ally's father went AWOL and was found a week later in a pool of blood and pile of mangled body parts, laughing as she broke her playmates' bones one by one with her bare hands. A colonel's girlfriend drowned in the middle of White Sands desert, miles from the nearest water source. A lieutenant's neighbors were found burned to death in their pristine home with no sign of a fire-- all project candidates were recalled for in-house supervision and psych testing.
Ally's father behaved strangely too... seemingly obsessed with nonsensical phrasing and theoretical math, all culminating with her family's kidnapping by her father when he was supposed to be taken under observation. He was a different man-- aggressive, controlling, demanding. He became physically abusive and highly anxious, disappearing for days at a time, building caches of supplies, and obsessed with internet conspiracy theories. The experience was traumatic for the family, but basic counseling could determine no issue, and her father seemed to expertly mask his symptoms for outsiders.
For Ally herself, she endured a similar abuse as the others, but her father demonstrated more aggressive means of control. He did not physically attack her, but at times he arranged schedules with family and colleagues so that he would have time alone with her some evenings... during these nights, he would drug her with a strong sedative, something with memory-affecting side-effects, restrain her, and administer forced transfusions of some design. She never determined the exact contents, but from what she could tell in her haze of whatever drugs he used to pacify her, she saw him drawing his own blood, injecting strange serums into the samples, and re-injecting them into her. The man had no prior knowledge of organic chemistry. Later, after extensive counseling, she would suspect that this is because, like him, her blood type was O+.
As his aggression and paranoia grew, his control gradually slipped. The family banded together and reported his abuses-- which were extensive, with Ally bearing the least of his aggression. MPs took him into custody, but on the official record of incidents and his incarceration, domestic violence was only described in vague overtones... instead, they cited bogus charges, fed the family "official memos", and essentially kept him permanently out-of-contact. The family received a typed letter "from him" once a week for a while and were assigned counseling and support for his "PT breakdown"... but they knew the truth, and they were terrified of it. They sought private counseling, and they kept their mouths shut to anyone else.
All the members of her family were affected physically and mentally by the ordeal, and neither the Army nor the Federal Government are admitting her father's fate or location. The family was given a sizable pension fund and relocated to Jacksonville, Florida to be nearer to relatives. What had been a rebellious streak in her seemed to amplify-- she became confrontational, withdrawn, socially aggressive, and unpredictable. Citing the traumatic experience as the most likely cause, her mother sought counseling for her, and Ally tried to control/redirect her anger through physical exercise and experimental drug use. Over the next few months, Ally began to develop strange abilities beyond her natural talent-- she became faster, she recovered from workouts quicker. She hadn't gained mass, but she kept adding weights to her strength workouts. She kept running after a 5k cross-country race because she wanted to "humiliate the bitch that was eye-fucking her". She seemed to need less sleep-- which was good, because she had increasingly frequent nightmares, uncontrollable thoughts, and was often out all night-- and her grades didn't even suffer, a fact that baffled her teachers... she remained a C-B student with no motivation to improve her scores.
Then, things got weird.
She could exert force beyond most people's physical capacity. She no longer got sick, and she never sunburned. She was struck by a cyclist on a walking path and emerged unhurt-- despite the cyclist breaking a couple bones and requiring multiple stitches. Her power grew, and she went from leaping great distances to being able to actually levitate. Blood testing was inhibited, because syringes couldn't pierce her skin. X-rays and CT scans couldn't seem to pierce her tissue successfully enough to get a read on anatomical causes.
Of course, she gained the attention of authorities-- the military tried to recover her quietly, and various private-sector groups sought to harness her abilities in the hopes of being able to "manufacture" next-evolution humans. She rebelled, and her family fought to preserve her freedom through legal means, but she was taken by the NSA for study. In a moment of terror and anger, she snapped... her powers took control, and she made a violent escape.
Refusing to yield to authorities, she went on the lam. She committed a string of petty crimes and avoided capture for over three years, escaping the public eye entirely as well as the custody of law-enforcement agencies and that of her family's private inquiries. By her twenty-first birthday, Overwatch had picked up her trail and pursued her to Peru. She is supposed to have spent her time in exile as a hermit, learning meditation and physical control in an effort to chain her raging emotions and physical urges... it's not clear what she was doing, or where, or with whom, but Ally was coherent and remorseful enough to surrender herself to Overwatch's custody as part of a carefully crafted legal deal orchestrated by Cpt. Patricia Nichols.
She has agreed to collaborate with the team and use her powers under their supervision and authority. She undergoes regular counseling-- an increasingly important part of her treatment, since her physiology no longer seems to respond to normal medications that might help her. She easily completed her high school equivalency examination and is enrolled in online college courses. But as of yet, she has not opened up to her team personally.