Harper has a good heart, but hides it through her tough exterior; she takes most of the beatings from her father, to protect her brother. She avoids talking to "normal" kids, believing that they couldn't understand her; this allows her to respect and bond with stranger people like Violet and Fred. She believes that being a "freak" is nothing to be ashamed of, and that it makes a person unique. At her core, Harper fears becoming like her father; she even started drinking under age to escape her horrible life. Ultimately, Harper makes the right call and tells her counselor Megan Morse the truth about her home, getting herself and her brother put in the same home for children abused by their parents. Harper claims to have a boyfriend, but she seems to be attracted to Violet.
Harper is a Caucasian teenage girl with gray eyes and short hair dyed blue with the sides shaven. She wears black ear piercings and lipstick. Her outfit consists of a black leather jacket, a brown top underneath, black leggings and boots.
Harper and her brother Cullen grew up in an unsafe environment. Their father was alcoholic and abusive, and the two would often go to school with bruises. Harper cared for her younger brother, but feared being separated from him if they went into foster care. So they started a lie, that all injuries were the result of play fighting between the siblings. They'd rather endure the constant abuse together than be separated.