Bio: Harper and her brother Cullen had an abusive/negligent father. Due to the poverty and, their father's "breaking things", Harper thought herself how technical skills and eventually emancipated from their father. She works a job doing maintenance for the city's electrical grid. After he Batman saved her and her brother, she started tailing and helping him, eventually acting as a vigilante herself.
Notes: Harper and Cullen's father is currently in prison.