Rubeus

Rubeus Hagrid was a character in J.K. Rowling's Harry Potter series. His mother was a giant, and his father was a human wizard. He was expelled from Hogwarts when it was believed that his pet acromantula was responsible for the deaths of students, who were actually killed when Tom Riddle opened the Chamber of Secrets. He was not allowed to practice magic, but he occasionally did anyway. Hagrid later became gamekeeper at Hogwarts, and he brought Harry Potter to the Dursley's house after Lily & James Potter were killed. He was also chosen to tell Harry that he was a wizard and help him get ready for his first year at Hogwarts. A few years later he was made a professor and he taught Care of Magical Creatures. After Voldemort came back, Dumbledore sent Hagrid as an envoy to the giants, hoping to prevent them from joining Voldemort's army. Hagrid failed, but he brought home his half brother, Grawp, who he kept hidden in the Forbidden Forest. Hagrid went into hiding with Grawp during the Second Wizarding War, but returned for the Battle of Hogwarts. During the battle, he was captured by Death Eaters. Hagrid was still teaching at Hogwarts when Harry Potter's children attended the school.

Crimson Rubeus was a Sailor Moon Character, and was a villain of the Black Moon Clan.

Rubeus is the Latin word for 'Red'. It does not appear in SSA's name database, making it a very rare name. Since the character was mainly called Hagrid, it's also a name that doesn't scream 'Harry Potter'.