| Abbott, Hanna | Hufflepuff |
| Bane | centaur; black-haired |
| Baron, Bloody | poltergeist; can control Peeves; Slytherin ghost |
| Bell, Katie | Griffindor chaser |
| Binns | Professor; history of magic; ghost |
| Bletchy | Slytherin keeper |
| Bones, Susan | Hufflepuff |
| Boot, Terry | Ravenclaw |
| Brockhurst, Mandy | Ravenclaw |
| Brown, Lavender | Griffindor |
| Bulstrode, Millicent | Slytherin |
| Crabbe | Malfoy friend |
| Crockford, Doris | met at Leaky Cauldron |
| de Mimsy-Poppington | Sir Nicholas (Nearly Headless Nick); resident ghost of Griffindor |
| Dennis | Dudley friend |
| Diagon Alley | Wizard shops in London |
| Dumbledore, Albus | Headmaster at Hogwarts |
| Dursley, Petunia | Privet Drive; sister of Mrs. Potter |
| Dursley, Vernon | Works at Grunnings |
| Fat Lady, The | gatekeeper to Griffindor tower |
| Figg, Mrs. | Sometimes takes care of Harry when Dursleys can not |
| Filch, Argus | Hogwarts caretaker; has cat Mr. Norris |
| Finch-Fletchley, Justin | Hufflepuff |
| Finnigan, Seamus | Griffindor; dad muggle |
| Firenze | centaur; white-blonde hair; palimino body |
| Flamel, Nicolas | partner of Dumbledore; worked on alchemy |
| Flamel, Perenelle | wife of Nicolas |
| Flint, Marcus | Slytherin 6th year; quidditch captain |
| Flitwick | Professor charms |
| Flourish & Blotts | bookstore in Diagon Alley |
| Fluffy | three-headed dog protecting Philosopher's stone |
| Fudge, Cornelius | Ministry of Magic, Head/ |
| Gordon | Dudley friend |
| Goyle | Malfoy friend |
| Granger, Hermione | HP Friend |
| Gringotts | wizard's bank run by goblins |
| Hagrid, Rubeus | Keeper of the Keys and Grounds at Hogwarts |
| Hedwig | HP Owl |
| Higgs, Terrence | Slytherin seeker |
| Hooch, Madam | re quidditch |
| Johnson, Angelina | Griffindor quidditch chaser; chaser |
| Jorden, Lee | student |
| Leaky Cauldron | inn in Diagon Alley; Tom innkeeper |
| Longbottom, Neville | Griffindor; accident-prone |
| MacDougal, Morag | Slytherin |
| Malcolm | Dudley friend |
| Malfoy, Draco | HP nemesis |
| Malkin, Madam | Has shop in Diagon Alley |
| McGonagall, Minerva | Deputy Headmistress, Professor of transfiguration at Hogwarts; head of Griffindor |
| muggle | non-wizards |
| Ollivander, Mr. | wand shop at Diagon Alley since 382BC |
| Parkinson, Pansy | Slytherin |
| Patil, Parvati | twin of Patil |
| Patil | twin of Parvati |
| Peeves | school polergeist |
| Polkiss, Piers | Dudley's best friend |
| Pomfrey, Madame | Medical |
| Potter, Harry | HP |
| Potter, James | HP Father |
| Potter, Lily | HP Mother; Sister of Mrs. Dursley |
| Pucy, Adrian | Slytherin quidditch player |
| Quirell | Professor - Defense against the Dark Arts |
| Ronan | centaur; chestnut body; reddish tail |
| Snape, Severus | Professor of potions |
| Sprout | Professor; herbology |
| Squib | born from wizards but without wizard power |
| Thomas, Dean | Black; Griffindor |
| Turpin, Lisa | Ravenclaw |
| Voldemort | evil wizard; defeated when he tried to kill HP |
| Weasley, Arthur | Father of Ron, etc; Misuse of Muggle Artefacts in MoM; tall, balding |
| Weasley, Bill | Oldest; in Africa working for Gringotts (bank) |
| Weasley, Charlie | 2nd oldest; in Romania studying dragons |
| Weasley, Fred | twin of George |
| Weasley, George | twin of Fred |
| Weasley, Ginny | 1 year behind HP at Hogwarts |
| Weasley, Molly | Mother; little, plump |
| Weasley, Percy | Prefect |
| Weasley, Ron | HP's best friend |
| Wood, Oliver | Two years ahead of HP |
| Zabini, Blaise | Slytherin |