Harry's uncle; a large, often purple, and always angry man. He adores his son, Dudley, and loathes Harry. He and his wife, Petunia, took in Harry after Harry was orphaned and they abused Harry in the hope that doing so would get rid of his magical powers. During the summer before Harry's third year at Hogwarts, Vernon shuts Harry's school supplies away and forbids to send notes to his friends. When his sister, Aunt Marge, comes to visit, Vernon tells her that Harry is attending a school for "incurably criminal boys" and agrees to sign Harry's Hogsmeade permission form if he behaves and plays along. He doesn't follow through as Harry loses his temper and accidentally inflates Marge like a balloon.