George's extroverted and theatrical best friend, who supports George in her journey of self-discovery. She has light brown skin, wears her hair in braids, and is known for her kindness and willingness to understand and support George.

George's mother, who is kind and has green eyes like George, and is accustomed to wearing jeans and not using makeup. She grapples with understanding George's identity but ultimately supports her child.

George's older brother with a mop of dark brown curls who initially teases but ultimately accepts George's identity. He is portrayed as a typical teenage boy with a laid-back attitude once he understands George’s situation.

George's teacher who represents societal gender expectations and initially misunderstands George’s identity. She is described as having shiny black hair in a bun and wooden earrings.

The chief bully in the novel, characterized by his tall stature and spiky hair. He represents a narrow-minded perspective on gender and is a source of verbal and physical bullying for George.

A largely absent father who lives in Pennsylvania and left George's mom. He is depicted as a better part-time dad, illustrating the novel's commentary on traditional family roles.

The supportive principal of George's school, known for her short gray hair and turquoise necklace. She creates a welcoming environment for George and represents a progressive attitude in the educational setting.