| Description | Character |
| The clumsy metamorphmagus who is a member of the Order of the Phoenix | |
| The stern Transfiguration teacher | |
| The werewolf who teaches Harry Defense Against the Dark Arts in the third year | |
| Harry's braniac friend | |
| Harry's red-haired best friend | |
| The wise, powerful Headmaster of Hogwarts in books 1-6 | |
| The deep-voiced temporary Minister of Magic at the end of book 7 | |
| The evil killer of Sirius Black | |
| The gamekeeper and Care of Magical Creatures teacher | |
| Harry's enemy and rival (son of Lucius) | |
| The slightly crazy, tough, one-eyed member of the Order of the Phoenix | |
| The small, timid man who betrayed Harry's parents | |
| The abnormally short Charms teacher | |
| The high-inquisitor of Hogwarts in book 5 | |
| The part veela and only girl Triwizard champion in book 4 | |
| The Death Eater who posed as Mad-Eye Moody in book 4 | |
| The phony, dim-witted Defense Against the Dark Arts teacher in book 2 | |
| Harry's owl | |