Horrid Henry is a mischievous, rebellious, and often selfish young boy who revels in causing trouble. He has spiky brown hair, typically wears a blue and yellow striped jumper, and is around 8 or 9 years old. Henry is notorious for his bad behavior, which includes scheming to get his way, tormenting his little brother Perfect Peter, and avoiding schoolwork. Despite his troublemaking, he is witty and inventive, often coming up with elaborate plans. He detests rules and authority. 