Ozzie is a precocious 13-year-old student who constantly questions the teachings of his religious community. His sincere desire to understand the limits of God's power—specifically regarding the virgin birth—puts him at odds with the adults around him. He acts as an intellectual challenger to the rote routines of his education, demanding logical answers rather than reflexive discipline.

Rabbi Binder is a tall, broad-shouldered religious instructor who relies on authoritarian power rather than theological engagement to control his students. He adheres strictly to traditional teachings and rituals, brushing aside Ozzie's persistent questions. His classroom management utilizes intimidation to force compliance.

Mrs. Freedman is Ozzie's widowed mother who serves as the spiritual center of their household. She deeply values Jewish traditions, demonstrating sincere emotion and reverence when lighting candles for the Sabbath. Despite her personal piety, she struggles to handle her son's theological questions when they cause trouble at his school.

Itzie is Ozzie's 13-year-old classmate who prefers to avoid direct confrontation with school administration. Instead of asking sincere questions, he chooses to mock Rabbi Binder behind his back using gestures and rude noises. He enjoys his friend's defiance for the sheer mischief of it.

Yakov is the 71-year-old custodian at the religious school. He walks the halls accompanied by two black cats and largely ignores the students. The children view him with a mix of fear and disrespect, interpreting his continuous, mumbled prayers as an automatic, unthinking routine.