Leonard is an introverted ghostwriter who crafts entries for children's encyclopedias. He often wears noise-canceling headphones to avoid speaking with his coworkers in his shared office space. Though he struggles in social settings and prefers solitary reading over group activities, he actively seeks meaningful connections with a select few people. He heavily values his bond with his mother and his lifelong companion, Hungry Paul.

Hungry Paul is a quiet man in his thirties who lives happily with his parents. He works occasional fill-in shifts as a postman and lacks conventional ambition, preferring to let life take its course. He occupies his time by studying magazines like *National Geographic*, playing board games, and attending martial arts classes.

Grace is Hungry Paul's older sister who works a professional job and lives with her fiancé. She operates as her brother's lifelong protector but actively worries that he needs to develop independent life skills. She is a practical planner who values stability, yet she also requires alone time to recharge from social expectations.

Peter is a retired economist and father to Grace and Hungry Paul. Having lost his own father young, he approached his career with a desire to mentor students. He currently spends his days enjoying retirement but contemplates how to help his son transition out of the family home so he can focus entirely on his marriage.

Helen is a semi-retired teacher who volunteers at a local hospital. She possesses a sharp intellect and a talkative, extroverted personality, easily chatting with strangers. She loves her family deeply but struggles to adjust her maternal instincts, frequently treating her adult son as though he were still a young student.

Shelley works on the same office floor as Leonard and previously dropped out of art school. She is a single mother who feels unfulfilled in her professional life but finds joy in drawing illustrations with her child. Her bright red hair and quick banter initially intimidate Leonard before they develop a genuine connection.

Andrew is Grace's fiancé, characterized by his stable upbringing and mainstream interests. He enjoys standard activities like going to pubs and watching rugby, which causes his future in-laws to view him as highly conventional. He is completely smitten with his partner and respects her need for solitude.

Patrick is a seven-year-old boy raised by a single mother. He reads factual books enthusiastically and draws imaginative pictures based on the information he learns.

Mrs. Hawthorn is a patient at the local hospital where Helen volunteers. She appreciates quiet companionship and values silent, reassuring presence over chatty conversations.

Barbara is an elderly patient awaiting a medical scan. She enjoys extensive conversations and sharing stories about her daily experiences with the hospital volunteers.

Arno is a representative for an association of mimes. He seeks a spokesperson capable of explaining the value of silence to the public to revive interest in the performance art.

Max Baxter is the credited author on the children's encyclopedias. He relies on ghostwriters to produce the factual and engaging content for his books.