* Sam: A young Chinese-American boy who struggles to fit in and gain acceptance. He feels like an outsider due to his heritage and his timid nature.
* Mr. Lee: Sam's father, who is a hardworking and loving man, but struggles to understand and connect with his son's anxieties.
* Tommy: Sam's friend and classmate who is a popular, outgoing, and confident boy. He is initially supportive but becomes a source of pressure for Sam to conform.
* Mr. Kim: A kind and understanding school counselor who offers Sam guidance and support.
* Mrs. Lee: Sam's mother, who provides a strong and loving presence in his life.