Ari’s 19-year-old brother and guardian, whose struggles with responsibility lead to their homelessness. Despite his flaws, he shows growth throughout the story as he tries to secure a future for himself and Ari.

The legal guardian of Ari and Gage after their mother's death, who has a complex relationship with both. Her home represents safety and care, although misunderstanding and emotional missteps complicate their relationship.

A kind and generous man experiencing long-term homelessness, who befriends Ari and shares hope through his symbolic paper planes. His interactions challenge negative stereotypes about homeless individuals.

Ari's best friend whose relationship with Ari becomes strained as her privileged lifestyle contrasts sharply with Ari's challenges. She initially offers Ari support but later becomes an antagonist through her indifference and cruelty.

Ari's new friend at school who provides support and companionship during her difficult times. His openness and enthusiasm help Ari reconnect with the joys of childhood.

Gage’s loyal friend who offers support and shelter to Gage and Ari despite his own limited resources. His actions highlight the theme of community support.

Gage’s girlfriend, who offers occasional shelter but is primarily self-centered and judgmental about Ari and Gage’s situation. Her presence contributes to Ari's feelings of guilt and shame.