Raina is Craig's first love and is portrayed as a rebellious and unconventional person who becomes a significant influence in Craig's life. She faces her own familial responsibilities and serves as a catalyst for Craig's personal growth during their time together.

Phil is Craig's younger brother who features prominently in Craig's childhood memories, often as a source of both conflict and companionship. He serves as an anchor for Craig, drawing him back home during key family events.

Craig’s father is a strict and abrasive figure in Craig's life, often associated with punishment and fear. He embodies the rigid religious beliefs that Craig struggles against throughout his youth.

Craig's mother is briefly present in the story, portrayed as a devout Christian who adheres to her husband's wishes. She is relatively easygoing compared to Craig's father but instills guilt in Craig based on religious morals.

Laura is Raina’s adopted sister who has a developmental disability and is known for her loving and open demeanor. She requires significant care, which Raina frequently provides.

Ben is Raina’s adopted brother with Down’s Syndrome who stays at home and supports the family within his abilities. He is wary of strangers, including Craig, and expresses strong feelings about his parents' divorce.

Raina’s parents are in the process of divorcing during Craig's visit, creating tension and changes within the family. They are more understanding and open compared to Craig’s parents, contributing to the novel's exploration of family dynamics.