| Description | Name |
| Blew up the town of Little Dropping in Hampshire | |
| Famous broomstick designer | |
| Ancient Runes teacher at Hogwarts | |
| Author of A History of Magic | |
| Death Eater, sister of Narcissa and Andromeda, cousin of Sirius, wife of Rodolphus (maiden name) | |
| Daughter of Phineas and Ursula, sister of Sirius, Phineas, Cygnus, and Arcturus, wife of Herbert, mother of two sons and one daughter (maiden name or married name) | |
| Established the Committee on Experimental Charms | |
| Author of the banned children's book series The Toadstool Tales | |
| Vampire who was known as the 'Vampire of the Valleys'. Famous for singing to his victims before biting them in their neck. | |
| Ministry of Magic employee in the Department of Mysteries, killed by Devil's Snare | |
| Creator of Every Flavour Beans | |
| Chief of the Wizards' Council, introduced the Golden Snitch to Quidditch | |
| Reporter for the Daily Prophet | |
| Ravenclaw student one year above Harry, Quidditch Seeker, member of Dumbledore's Army | |
| Muggle-born Gryffindor student one year below Harry, member of Dumbledore's Army, killed in seventh book | |
| Sent to Azkaban for keeping sphinxes in his backyard | |
| Husband of Charis, father of one son and two daughters | |
| Wife of Caspar, Daughter of Arcturus and Lysandra, mother of one son and two daughters (married name) | |
| St Mungo's Healer and Headmistress of Hogwarts | |
| Member of the Order of the Phoenix | |
| Builder and landlady of the Leaky Cauldron | |
| Son of Vernon and Petunia, first cousin of Harry Potter | |
| Part-Goblin Charms professor at Hogwarts and Head of Ravenclaw | |
| | Description | Name |
| Owner of an ice cream parlor in Diagon Alley. Helped Harry Potter with his homework and gave him free ice cream. Victim of the Death Eaters. | |
| A one-eyed, hump-backed witch who discovered a cure for dragon pox | |
| Slytherin student in Harry's year, Slytherin Quidditch Beater, member of the Inquisitorial Squad | |
| Quidditch Seeker with the Holyhead Harpies | |
| Dark Wizard, friend, and later rival, of Albus Dumbledore, nephew of Bathilda Bagshot, owner of the Elder Wand, student at Durmstrang | |
| Co-founder of Hogwarts (G) | |
| Quidditch Seeker for the Chudley Cannons | |
| Fan of Gilderoy Lockhart, writes weekly fan mail | |
| Co-founder of Hogwarts (H), ancestor of Hepzibah Smith | |
| Author of The Dream Oracle | |
| Quidditch Beater with the Chudley Cannons, featured in the book Flying With the Cannons | |
| A French sorceress convicted of witchcraft in 1422 and possible animagus | |
| Ravenclaw student one year below Harry, daughter of Xenophilius, member of Dumbledore's Army | |
| Led effort to reintroduce the game of Creaothceann; Nicknamed 'Dent-Head' | |
| Hogwarts student before Harry's time, attacked with Dark Magic by Mulciber | |
| Ravenclaw student sorted at the same time as Harry | |
| Wife of Arcturus Black, mother of Lucretia and Orion Black (maiden name) | |
| Owner of Robes for All Occasions in Diagon Alley (title) | |
| Elderly passenger on the Knight Bus (title) | |
| Hogwarts Transfiguration professor, Head of Gryffindor House, Headmistress | |
| Member of the original Order of the Phoenix | |
| Retired Auror, member of the Order of the Phoenix, Defence Against the Dark Arts professor in Goblet of Fire (nickname) | |
| Ghost who haunts the second floor girls' lavatory at Hogwarts | |
| | Description | Name |
| Slytherin student in Harry's year, school prefect, member of the Inquisitorial Squad | |
| Gryffindor House ghost (nickname) | |
| Ravenclaw student in Harry's year, identical twin sister of Gryffindor student, member of Dumbledore's Army | |
| Gryffindor student in Harry's year, identical twin sister of Ravenclaw student, member of Dumbledore's Army | |
| Heads a committee for the Ministry of Magic that produces a report entitled A Study into Muggle Suspicions About Magic | |
| Gryffindor student before Harry's time, Marauder, Animagus, Death Eater, traitor to the Order of the Phoenix | |
| Friend of Dudley | |
| Hogwarts school nurse | |
| Quidditch Chaser from Russia, creator of the [his name] Ploy | |
| Death Eater, Muggle Studies and Defence Against the Dark Arts professor, possessed by Lord Voldemort in Philosopher's Stone | |
| Co-founder of Hogwarts (R), mother of Helena | |
| Conductor of the Knight Bus | |
| Co-founder of Hogwarts (S), Parselmouth, ancestor of the Gaunt family and Lord Voldemort | |
| Son of Tobias and Eileen, 'Half-Blood Prince,' reformed Death Eater, member of the Order of the Phoenix, Potions and Defence Against the Dark Arts professor, Head of Slytherin Hous | |
| Wizard who produced seven Squib sons and turned them all into hedgehogs in disgust | |
| Received the Order of Merlin First Class following the Ilfracombe Dragon Attack of 1932 | |
| Muggle-born husband of Andromeda Black, father of Nymphadora, killed by Death Eaters | |
| Wizarding radio personality, husband of Daisy Hookum | |
| Author of Curses and Counter-curses (Bewitch Your Friends and Befuddle Your Enemies with the Latest Revenges: Hair Loss, Jelly-Legs, Tongue-Tying and Much, Much More) | |
| Street peddler accused of selling defective merchandise in Diagon Alley | |
| Son of Arthur and Molly, husband of Fleur Delacour, Hogwarts prefect and Head Boy, member of the Order of the Phoenix, Gringotts employee | |
| Set up regurgitating toilets in Order of the Phoenix, informs Dolores Umbridge of the meeting of Dumbledore's Army in the Hog's Head | |
| Author of Home Life and Social Habits of British Muggles | |
| Hogwarts ghost | |
| Hogwarts ghost | |
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