- "I would trust Hagrid with my life."
- —Albus Dumbledore describing his trust of Hagrid
Professor Rubeus Hagrid, familiarly known by only his surname, "Hagrid", was a half-giant wizard. He attended Hogwarts School of Witchcraft and Wizardry and was sorted into Gryffindor house. In Hagrid's third year, he was framed by Tom Riddle for the crime of opening the Chamber of Secrets and using his pet Acromantula to attack several Muggle-born students and eventually kill one of them. Though Hagrid's wand was snapped and he was expelled, he was trained as gatekeeper of Hogwarts and allowed to live on the school grounds at the request of Albus Dumbledore. Hagrid was given the task of reintroducing Harry Potter to the wizarding world. Two years later, he would assume the post of Care of Magical Creatures professor after the retirement of Professor Silvanus Kettleburn. In December 2011, he was given the task of convincing Snape to love Christmas.