Rubeus Hagrid () is a fictional character in the Harry Potter series of novels by J. K. Rowling. He was introduced in Harry Potter and the Philosopher's Stone (2001) as a half-giant who is the gamekeeper and groundskeeper at the wizarding school Hogwarts. He is a member of the Order of the Phoenix and eventually becomes the Care of Magical Creatures professor. Hagrid is portrayed by Robbie Coltrane in all eight Harry Potter films. Creation and development. Rubeus Hagrid was one of the first characters Rowling created.
https://en.wikipedia.org/wiki/Rubeus_Hagrid