Since you can guess from where I based this character, you can also guess I like SUSTIC's app too :P
(THIS thing took me like 2 hours, was actually scared it might be lost for internet being grumpy ^^; )
Name: Angela Lindholm
Gender: Female
Appearance: Images do better jobs than words
Spoiler
http://pre08.deviantart.net/6c8c/th/pre/f/2016/130/4/f/overwatch__mercy_by_nightfall1007-da22gsv.jpg
Race: Human
Profession and/or Talents: Angela´s abilities are branched in two areas, her medical work as a nanobiologist and combat actions. Starting with the one she was known for in her colony, Angela was a scientist focused on the area of nanobiology, trying to understand the cells and finding ways to restore damaged cells with nanotechnology, such research took years of her life until reaching the breakthrough of not only repairing injuries and infections, but managing to restore dead cells, destroying fatal sicknesses, injuries that would render lost limbs and restore the actual tissue, and even the impossible, restoring a living being to full health from the flat line, or as we know it better, resurrecting from the dead.
In terms of combat, Ángela uses her staff as a mobile health regeneration supplier in the form of a beam of light attached to the target, she is what the military would see as a combat medic, going on the frontline to help the injured, but also being able to defend herself with her energy pistol, an emergency side arm that, while not being something of great caliber as an assault rifle, it can do its job against enemies.
Her hybrid job of fighting and researching as a medical scientist has given Angela the experience as a professional doctor, while also being able to defend herself against hostiles.
Inventory: The doctor usually carries her staff and energy pistol with her, they both work only by her DNA signature.
The staff can work as a Bo staff to fight in melee combat, being able to reach the length of Angela´s height as its front part could work as a blunt weapon to crush someone's skull with enough strength and momentum, but its main ability is the one of regenerating a target´s vitals to the point of optimal health in the form of a ray of light, although that is what the normal human eye can see, but on a zoomed view, the light is actually made of artificial multi-purpose cells that can adapt to the target´s body, its garments and even electronic and metallic elements, for example an armored soldier, if he or she were to lose a limb by an explosion, Angela´s staff, if she reaches fast enough, could reattach the damaged limb if it is a clean cut or by "re-creating" the lost pieces of flesh and bone, to the point of having the new limb and armor as if nothing would have happened.
The emergency side-arm is what it is, a pistol with 20 rounds of energy bullets, their might not be the strongest kind of weaponry, but have enough kick to hurt a shielded and armored target if enough rounds hit it. The ammunition of the pistol is of a constantly recharging battery that only needs to be "kickstarted" every time the ammunition depletes. The side-arm is fast and has a constant trajectory, ignoring the arc of gravity that a kinetic bullet would have.
Spoiler
http://img02.deviantart.net/94d4/i/2015/274/2/0/mercy___overwatch___close_look_at_model_by_plank_69-d9bm4az.png

Now here comes the interesting thing about Angela's inventory, the Valkyrie suit, this armor, while not the best in terms of defense, protects the doctor while she is either in combat or exploring dangerous areas, like radiation zones, high pressured depths of water, and even the nothingness of space, this suit was made by Angela through her work to be able to go further in her job, adding solar charged wings to be able to fly and roam the skies, underwater, or the vacuum of space. It is a slick, adaptable and easy to fix suit that has given the platinum haired woman to keep researching and protecting those in need.
Spoiler
http://img06.deviantart.net/b5f2/i/2015/274/2/a/mercy___overwatch___close_look_at_model_by_plank_69-d9bm4j7.png

Personality: A caring soul that always wants to help, Angela Lindholm is usually an optimistic person that would be hard to be saddened, yet when it comes to her work, she becomes a serious and authoritative person who focuses on the job, even in the middle of a firefight, you would see her protecting the injured by healing them with one hand and firing her pistol with the other one.
Bio: Born from one of the space colonies of the galaxy, Angela Lindholm had a fascination with exploring and helping those in need, although it all started with trying to make a crying kid smile as he was injured while playing on the park. Her parents were scientists in the colony, her mother was the chief of the medical branch while her father was one of the commanders in the military section, while they were serious on their jobs, both parents could be sunshines for the young Angela, that is how she decided to be like her parents, saving those in need and fighting for justice.
Years passed as a teenager Lindholm was on her mother´s lab, trying to find a way to use nanotechnology as a way to restore the damaged tissue on injuries, who would have thought that her first subject was herself as she sliced her arm and spilled the yellow colored samples of her work on the bleeding cut, to her surprise, the injury started healing right in front of her eyes. Not caring about the mess, Angela started checking the elements that the samples had, trying to understand what mixtures were used to have such a powerful reaction.
Her mother found a sleeping seventeen year old girl with a writing board, with 36 syllables and a spiderweb of element combinations in the tridimensional showcase.
Further on her young adult life, Angela went to the military training of the colony, even managing to go to service as a medic, the groups of space pirates were a constant threat to the settlements, and their system's military was the only protection against the relentless bandits. It was in that time that Angela had managed to protect her squad when they were ambushed by the pirates, the platinum haired soldier had her serum of health regeneration in the form as a syringe gun, firing the darts to aid her comrades while they fought, in a fit of irony, the only one who had fatal wounds was Lindholm herself, as she was shot by a shotgun blaster on her stomach.
Her squad tried to keep the injuries at bay with her serum and emergency health kits, yet they were amazed by how fast the damaged flesh would regenerate in front of their eyes, this was because the time when Angela had accidentally spilled the original samples of her serum when she was younger, the artificial cells had mixed with her organic ones, making her immune system effectiveness reach higher levels.
Continuing her research as the years passed, the combat doctor had achieved by the age of 30 the Valkyrie suit and the Caduceus stream, both objects were her worth of years of constant working, sleepless nights and failed experiments, but now she had a way to protect herself and give direct streams of healing energy to her allies.
Yet she the first time she had managed to use its maximum ability, was in a cataclysmic disaster.
Angela was exploring the ruins of a strange civilization hidden in a planet when she received the report of unusual solar activity from her HUD, which was something impossible since the planet was able to protect the living creatures from the sun's radiation. The universe, despite the eons that have passed, is still a mystery, so when the alarms blared throughout the system of the sun losing its energy at dramatic speed, Angela didn´t waste any second to fly to her colony, the bigger ships were evacuating the system for the danger of a possible supernova.
They didn´t make it, the explosion had reached the ship even on hyperspace, damaging its systems, overloading the core and the explosion that ocurred inside a firgate class ship could be seen from the outpost on the safe zone.
The medical ships didn´t hesitate to investigate the surely uninhabited frigate, what the first explorer found was a sort of miracle, the crew and civilians of the ship were gathered on the docking bay, a yellow bubble protecting them from the vacuum of space, its source was a woman in the middle of the bubble, holding a staff that kept everyone inside safe from a sure death.
She didn´t know how her staff could have done that, but she was glad that her colony was saved. Angela's work kept going further as she never stopped, she had achieved the resurrection of living beings from flat line state. It took the white haired woman days to get the fact in her mind.
Deciding to expand her knowledge, the doctor went on the differect colonies, seeing their cultures and technological feats, all to understand and be able to become better, because she had the time, all the time she could have, this was her blessing and curse. Angela´s regenerative cells had made her stay on the same age for years, and she could see how her friends and family kept growing up.. she just didn´t wish to remember those years as she decided to roam the galaxy.
She didn´t know how much time has passed, but during her journeys, Lindholm had worked with many groups to reach goals to save the innocent, find cures, and even stop wars, nobody knew who was this "angel" as some called her because of her appearance and attire, but only those who would look on history books could find the same white haired woman in the photographs of important events.
One of her most important memories was the one of a poor soul who she had wrongly caused so much pain. This was the case of a man called Jackson, or as the organization called him "Subject three". On the surface, the organization that contacted the doctor was a known pharmaceutical institute that focused on difficult illnesses and rare diseases, so when they offered a job on sound waves as a way to fight internal diseases, the ever 37 years old woman accepted the job.
On the first month of her job, Angela had managed to to find how a human brain could work more than its normal 3-5 percent of its effectiveness, but there was always something.. odd, how did these tests worked? on what did the other scientists used the sound waves to experiment? Her curiosity, bless that inheritance from her mother, was the one that made the Doctor investigate.
To say she was surprised was an understatement, she not only found on what they were working with, but actually who. There were three persons held in cells, which had padded walls and covered speakers, which send the sound waves.. the ones she had developed. Horrified by what she had done, Angela decided to cause an "accident" in the power. Releasing the subjects, the first one was already dead for what she saw of the liquid oozing from her ear, the second one just ran away without hesitating, but the third one was in a state of trance, muttering unintelligible things, it took the touch of her palm on his shoulder to receive a reaction from the man, he looked at her for what felt like hours, but only were seconds and he pushed her away, tackling a guard, and escaped.
Angela knew what to do to these laboratories, their research was destroyed by her pistol and the place was going to have a critical reaction as her staff overcharged the core. She had narrowly escaped by using her wings.
Now we have the Doctor, in the ruins of what looks like a palace, not many months have passed since her encounter with that man, but she had to focus on understanding this new place, that is until the systems were activated, and her new journey starts now.
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