(Hagrid, Rubeus, Hagrid, Rubeus, Rubeus Hagrid) The near-giant-sized Keeper of Keys and Grounds at Hogwarts. Hagrid is a former student of Hogwarts who was expelled in his third year. He is in his 60's.

Origin:

Rubeus - "Red" in Latin.

Hagrid - In Greek mythology, he was a god thrown out of Olympus, but Zeus allowed him to stay and be the keeper of the animals.