Libby's older brother, serving a life sentence for the murder of their family; he has bright red hair and complex emotions surrounding his conviction.

Ben's secret girlfriend and a key character with a rebellious nature; she has curly brown hair and a background of risky behaviors.

Libby's mother, a single parent struggling under financial pressure; she is characterized by her bright red hair and devotion to her children.

A tall, young true-crime enthusiast from the Kill Club with an interest in the 80s, who aids Libby in her quest for the truth.

Libby's father, an unreliable and small-statured figure with a history of gambling issues, living a transient lifestyle.

Patty's practical and assertive older sister, who played a caregiving role for Libby after the family tragedy.