Rachel is an introvert and distrustful of people in general. She speaks rarely and sparingly to those around her, and seldom offers her opinion unless it's to correct glaring errors in judgment. It gives people the impression she is condescending though she is far from it.
She is an avid reader and keeps a personal library of favourite books and authors. She has a liking for cute things like stuffed animals and puppies though she had precious few of such possessions and would never admit it. Literal warning shots are fired at whosoever confronts her about it.
History:
Rachel Black was born to a family of mercenaries who were notorious for aiding in the civil wars and fighting of the African warlords. As such, she was raised to fight and kill at a young age, against men twice her size at least. Failure was met with painful disciplinary trainings. She served as an intelligence and wet work operative, silencing men in their sleep and using her age to get where others couldn't. Thus the nickname was given to her - Shadow.
On one of her missions at age 15, she was sent to assassinate an ambassador negotiating a truce between two tribes when she was discovered and thwarted by members of the Justice League. Unsure of what to do with her, she was taken in by Wonder Woman, rehabilitated from her brainwashing and nercenary upbringing and trained to be a hero rather than a soldier.
Fearing her reception to the team would be less than welcome, Rachel's past was kept a secret from the rest of the Young Justice.
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