Hagrid

Rubeus Hagrid is a fictional character in J.K. Rowling's Harry Potter series. A half-giant, he serves as Keeper of Keys and Grounds at Hogwarts School of Witchcraft and Wizardry, and for a time also as Care of Magical Creatures professor. He is known for his loyalty, straightforward manner, and fondness for magical creatures.

Born to a wizard father and a giantess mother, Hagrid attended Hogwarts. He was expelled in his third year after being implicated in the illegal keeping of a dragon; Headmaster Albus Dumbledore later arranged for him to remain at Hogwarts, employed as Keeper of Keys and Grounds. He becomes a trusted ally to Harry Potter and his friends, and a bridge to the wider magical world.

At Hogwarts, Hagrid manages the grounds and teaches about magical creatures. His care and handling of creatures such as hippogriffs and acromantulas are featured in his classes and in the surrounding forest; his pet dog Fang accompanies him. He also mentors students and contributes to the defense of Hogwarts during times of danger.

In the later books, Hagrid participates in major events and survives the conflicts surrounding Voldemort, returning to his duties at Hogwarts. He remains a central figure for many students, illustrating themes of friendship, loyalty, and compassion toward all magical beings.