| A | B |
| Lily Potter | Harry's mother |
| James Potter | Harry's father |
| Albus Dumbldore | Headmaster of Hogwarts |
| Professor McGonagall | teaches Transfiguration Class |
| Professor Snape | teaches Potions Class |
| Professor Quirrell | teaches Defense Against the Dark Arts |
| Professor Snape | He does not like Harry because he and Harry's Dad were enemies |
| Professor Quirrell | He tries to kill Harry |
| Professor Quirrell | He wears a turban that looks odd and reeks a foul odor |
| Voldemort | An evil wizard |
| Voldemort | He was unable to kill Lily Potter |
| Voldemort | He has stayed alive for ten years living in the turban of Professor Quirrel |
| Professor Flitwick | teaches charms at Hogwarts |
| Professor Flitwick | He devised the flying keys obstacle |
| Professor Binns | teaches The History of Wizardry |
| Professor Sprout | teaches Herbology at Hogwarts |
| Professor Sprout | He is responsible for the creation of the Devil's Snare |
| Rubeus Hagrid | Keeper of Keys and Ground at Hogwarts |
| Madam Pince | Librarian at Hogwarts |
| Madam Pomfrey | Head Nurse at Hogwarts |
| Madam Hooch | Flight Instructor at Hogwarts |
| Argus Filch | Patrols the corridors of Hogwarts |
| Argus Filch | He is officially the Caretaker at Hogwarts |
| Mrs. Norris | Filch's cat |
| Mrs. Norris | Patrols the corridors at Hogwarts |
| Doris Crockford | The old woman who puffed a pipe at the Leaky Caudron pub |
| Dedalus Diggle | A wizard who meets Harry in the Leaky Cauldron |
| Madam Malkin | Owns the shop Robes for all Occasions |
| Madam Malkin | Fits Harry for his school robes |
| Mr. Ollivander | Owns the shop Maker of Fine Wands |
| Vernon Dursley | He is Harry's foster father |
| Vernon Dursley | He is the director of Grunnings, a firm that makes drills |
| Petunia Dursley | Lily Potter's sister and Harry's aunt |
| Dudley Dursley | The son of Vernon and Petunia |
| Piers Polkiss | Dudley's friend |
| Piers Polkiss | A scrawny kid with a face like a rat |
| Scabbers | Ron's rat |
| Trevor | Nellie's toad |
| Hedwig | Harry's owl |
| Fluffy | The three-headed monstor dog |
| Fluffy | Can be subdued by music |
| Fluffy | Guards the entry to the underworld |
| Norbet | The dragon that Hagrid hatches from an egg |
| Norbet | Sets little fires and bites Fang, Ron, and Hagrid |
| The Unicorn | Leaves a trail of blood |
| Ronan | A centaur who has red hair and a red beard |
| Ronan | He believes the stars will tell the future |
| Firenze | A centaur who is sympathetic to Harry |
| Bane | A centaur who is angry that Firenze has carried Harry on his back |
| The troll | He is set loose at the Halloween banquet to kill Harry |
| Peeves | A ghost who is constantly on the prowl in the halls |
| The Bloody Baron | He is the resident ghost of Slytherin House |
| The Bloody Baron | His robes are stained with silver blood |
| Nearly Headless Nick | He is the resident ghost of Gryffindor Tower |
| Nearly Headless Nick | He prefers to be called Sir Nicholas de Mimsy |
| Griphook | He took Harry to the underground vaults at Gringotts |
| Draco Malfoy | He feels and acts superior to the others at Hogwarts even though the others make fun of him |
| Seamus Finnigan | He says he is "half and half" because his dad is a Muggle and his mom is a wizard |
| Hermoine Granger | Made the highest grades of the first year students at Hogwarts |
| Ron Weasley | Harry's best friend |