A kind-hearted and eccentric boy who befriends Crash despite being the target of his bullying; his unwavering friendship plays a significant role in the narrative.

Crash’s nature-loving younger sister who befriends Penn and holds strong convictions about the environment and her family's lifestyle.

Crash's grandfather and a former Navy cook, who shares stories with Crash and Abby, and serves as a parental figure in their lives.

Penn’s parents, who are artistic and follow a modest, Quaker lifestyle, offering a contrasting perspective of life to Crash's family.

A new student at Crash's school who stands out for her beauty and befriends Penn, showing no interest in Crash.

Crash’s initial best friend and fellow athlete who also partakes in bullying Penn but does not understand Crash's eventual change of heart.

Crash’s parents, who are hardworking but often too busy to spend time with their children, embodying the pursuit of success over family time.

Penn’s great-grandfather, whose visit and close bond with Penn hold emotional significance in the development of relationships in the story.