Geemet the goblin, caretaker of the school.
Geemet isn’t a teacher, but instead takes care of the grounds and animals. He takes his job seriously, and can be seen all over the place, regulating magic brooms to do the sweeping, wrestling with magic creatures who’ve escaped their cages, or simply escorting disobedient students to the dungeons. Geemet is old by goblin standards, and possesses a willy wit, and more than a few scars. He has been known to help students with their escapades in the past, but only if they can successfully answer one of his riddles; if a student doesn’t have the brains, that student isn’t worth his time.