Seth's long-time best friend, a gifted baseball player under pressure from his demanding father, who shares his love for the game with Seth and influences the team with his talent.

Devoted to raising Seth alone after his father's death, she supports his interests and maintains clear boundaries, often offering insightful guidance while managing her own insecurities.

Jimmy's father, a former aspiring baseball player who channels his unfulfilled ambitions into his son, often through hyper critical demands and struggles with alcohol.

A talented baseball player and initially passive-aggressive teammate, who improves under Jimmy's influence and takes action concerning the team's alcohol issues.

The dedicated baseball coach who, as a former player, imparts his love for the game through teaching and encouragement, while enforcing team rules and offering support when needed.