Quinn Tara Emerson

She has a few powers... essentially she understands perfectly how things work by watching them function? But human brains can only retain so mcuh so uh. The seconary power of being able to remove her own memories comes in handy. It's important to note that if a power of someone else isn't determined by physical features of their bodies, she can copy it! She just. Suffers the side effects of the power on her (eg speedsters being copied might cause her to break her legs, even though she would be able to run very fast by copying them.) 

It doesn't need to be an actually real visual, eg, someone can animate the action, but if it's not actually real, the impacts on her body afterwards will be greater. It is theoretically possible for her to die from a power, but she's not stupid enough to push that. Training herself physically helps her get less injured by copying powers, as does keeping herself as healthy as possible.

Quinn is profoundly deaf, but she can still speak completely clearly by copying what their mouths are doing.

She's half native-american, but she was raised by a hispanic family because the US adoption system is terrible at linking minority children with minority parents. She has two younger brothers from her adopted parents. 

Quinn adores sports, and was up to olympic level at fencing... until she had the verdict on whether her powers gave an unfair advantage and the result was one of the strongest cases of being banned possible from this. She wants now to mix her work between teaching sports and doing very incredibly complex stunts.