A man working for a meth dealer who becomes an unlikely presence in Wavy's life. He has his own history of trauma and becomes closely involved with Wavy.

Wavy's mother, whose struggles with drug addiction and mental health issues create a chaotic and often harmful home environment. Her behavior influences many of Wavy's fears and habits.

Wavy's cousin who provides an outside perspective on Wavy's life. Her observations help fill in the details about Wavy's experiences and character.

Wavy's college roommate, who serves as a witness to later events in Wavy's life. She comes from a privileged background and is affected by Wavy's resilience.