Felton's younger brother, Andrew is a skilled pianist who values communication and offers emotional support amid family challenges.

Mother to Felton and Andrew, Jerri is characterized by her eccentric interests and faces a mental health crisis that impacts her family.

A talented pianist from Chicago, Aleah is Felton's girlfriend who helps him find confidence and provides support during difficult times.

A supportive friend who encourages Felton to join the football team, helping him gain confidence and connect with others.

Jerri's mother, who intervenes during the family's crisis, providing much-needed support and guidance for Felton and Andrew.

Felton's childhood friend with whom he shares a long-standing bond, despite occasional tension and jealousy.

Another of Felton's childhood friends, Peter is more reserved and becomes less central to Felton's life as the story progresses.

A teammate who initially clashes with Felton but becomes a friend once Felton joins the football team and gains confidence.

A teammate who, like Karpinski, evolves from a former bully to a friend as Felton gains social standing through sports.

A former classmate of Felton's who teases and supports him; she becomes a friend as Felton gains confidence.

A friend of Abby's who, along with Abby, befriends and supports Felton during his transformation.

A star athlete and coach's son who initially bullies Felton due to jealousy but later attempts to make amends.