Harry Potter (G) - owner of Hedwig (owl); the star of the series
- James Potter (aka Prongs) - Harry's father (murdered by Voldemort)
- Lily Potter - Harry's mother (murdered by Voldemort)
- Vernon Dursley - Harry's Muggle uncle
- Petunia Dursley - Harry's Muggle aunt (Lily's Muggle sister)
- Dudley Dursley - Harry's Muggle cousin
Ron Weasley (G) - Harry's best friend; former owner of Scabbers (rat; I-III); Errol (very old family owl); Pigwidgeon (new owl, given to him by Black)
- Mr. Arthur Weasley - Ron's father; works for the Ministry of Magic
- Mrs. Molly Weasley - Ron's mother
- Ginny Weasley (G) - youngest of the Weasleys; is sweet on Harry; possessed by Riddle (II)
- Fred and George Weasley (G) - Gryffindor Beaters; twins and very mischievous (love to play pranks on anyone and everyone)
- Percy Weasley (G) - Prefect (I-II); Head Boy (III); works for Crouch (Sr.) in the Dept. of International Magical Cooperation at the Ministry of Magic; stuffy, stuck-up, and pompous
- Bill Weasley - works at Gringotts; the "modern" dresser of the family
- Charlie Weasley - the eldest Weasley; studies dragons in Egypt
Hermione Granger (G) - Harry's other best friend; extremely clever (top marks in school); owner of Crookshanks (cat; III)
Draco Malfoy (S) - Slytherin Seeker; Harry's nemesis; an all-round jerk
- Lucius Malfoy - Draco's father; suspected of being in league with the Dark Side; confirmed Death-Eater (IV) (you can see where Draco gets his bad points from)
Neville Longbottom (G) - a very clumsy, absentminded boy, but his behaviour might be explained due to the fate of his Auror parents; lives with his grandmother
Vincent Crabbe (S) - one of Draco's "bodyguards"; not very bright; father is a Death-Eater
Gregory Goyle (S) - Draco's other "bodyguard"; like Crabbe, not very bright; father is a Death-Eater
Marcus Flint (S) - Slytherin Captain (I-III)
Oliver Wood (G) - Gryffindor Captain and Keeper (I-III); obsessed with winning the Quidditch Cup for Gryffindor
Cho Chang (R) - Ravenclaw Seeker; Harry's love interest (III-IV)
Cedric Diggory (H) - Hufflepuff Seeker; Harry's opponent in the Triwizard Tournament (IV)
Katie Bell (G) - Gryffindor Chaser
Alicia Spinnet (G) - Gryffindor Chaser
Angelina Johnson (G) - Gryffindor Chaser; applies for the Triwizard Tournament (IV)
Colin Creevey (G) - avid fan of Harry Potter; likes to take photos of Harry everywhere; Petrified (II)
Seamus Finnigan (G) - Muggle-born
Dean Thomas (G) - soccer fan and Muggle-born
Millicent Bulstrode (S) -
Pansy Parkinson (S) - goes with Draco to the Yule Ball
Lavender Brown (G) - believer in Divination and Prof. Trelawney
Parvati Patil (G) - believer in Divination and Prof. Trelawney; goes with Harry to the Yule Ball but doesn't have a very nice time (IV)
Padma Patil (R) - Parvati's twin sister; goes with Ron to the Yule Ball but doesn't have a very nice time (IV)
Ernie Macmillan (H) - convinced that Harry Potter was the Heir of Slytherin (II)
Justin Finch-Fletchley (H) - believed that Harry Potter was the Heir of Slytherin; Petrified (II)
Peeves - very mischievous poltergeist and pest
Moaning Myrtle - very sad and lugubrious ghost who haunts the girls' toilet on the 1st floor (II); killed 50 years ago by the Basilisk and the Heir of Slytherin(II)
Sir Nicholas de Mimsy-Porpington (aka Nearly Headless Nick) - Gryffindor ghost; became "affected" by the Basilisk (II)
The Bloody Baron - Slytherin ghost; only one who can fully control Peeves
Fat Friar - Hufflepuff ghost; cheerful disposition
Grey Lady - Ravenclaw ghost
Prof. Binns - see Hogwarts Staff
Sir Patrick Delaney-Podmore - a "properly decapitated" ghost who refused to allow Nearly Headless Nick to participate in the Headless Hunt, then stole the show at N.H. Nick's deathday party (II)
Albus Dumbledore - Headmaster of Hogwarts; the personification of goodness throughout the Harry Potter books; an extremely wise and wonderful wizard; the only person Voldemort ever feared
Prof. Minerva McGonagall - Transfiguration; Head of Gryffindor House; very strict but fair
Prof. Severus Snape - Potions; Head of Slytherin House; not Harry's favourite person, and vice versa; seems to have a personal vendetta against Harry, his father, and Lupin and Black; not too fond of anyone but Slytherins; former Death-Eater but repented - now loyal to Dumbledore
Prof. Sprout - Herbology; Head of Hufflepuff House
Prof. Flitwick - Charms; a tiny professor - very short
Prof. Binns - History of Magic; also a ghost; extremely dull (sends everyone into a stupor)
Prof. Sinistra - Astronomy (?)
Prof. Vector - Arithmancy
Prof. Sybil Trelawney - Divination (III); a rather flighty person who interprets all signs of divination in a negative sense
Prof. Kettleburn - formerly Care of Magical Creatures
Prof. Quirrell - DADA (I); possessed by Voldemort; during his tenure, quite nervous and jumpy
Prof. Gilderoy Lockhart - DADA (II); a fraud and a very egotistical person
Prof. Remus Lupin (aka Moony) - DADA (III); dear friend of James Potter and Black; a werewolf
Madam Hooch - referee of all Quidditch games
Madam Poppy Pomfrey - Nurse/Doctor of the hospital wing
Rubeus Hagrid - Keeper of the Keys; Care of Magical Creatures (III-IV); one of Harry's, Ron's, Hermione's most devoted friends; great respect for Dumbledore; expelled 50 years ago in third year for allegedly releasing the monster in the Chamber of Secrets (later proven to be innocent)
Argus Filch - Caretaker; owner of his beloved Mrs. Norris (cat); knows the premises inside out; a stickler for rules; hates the students
Sirius Black (aka Padfoot) - wrongfully convicted murderer and prisoner of Azkaban; Harry's godfather (III); escaped Dementor's Kiss thanks to Harry, Ron, Hermione, and Buckbeak
Peter Pettigrew (aka Wormtail, aka Scabbers) - former friend of James Potter, Black, and Lupin in Hogwarts days; betrayed James and framed Black for the murders; follower of Voldemort; lived as Percy's and Ron's pet rat for years in hiding; exposed for the vermin he really was by Black and Lupin (III); returned to Voldemort (IV)
Cornelius Fudge - Minister for Magic (I-IV)
Bartemus Crouch (Sr.)
Bartemus Crouch (Jr.)
Ludo Bagman
Rita Skeeter - any celebrity's worst nightmare; the equivalent of the paparazzi in the wizarding world; scathing reporter for the Daily Prophet, but she holds an interesting secret (IV)
Karsakoff - headmaster of Durmstrang, and not a particularly pleasant one at that
Madame Maxime - the very large headmistress of Beauxbatons and the object of Hagrid's infatuation
Victor Krum - representative for Durmstrang in the Triwizard Tournament
Fleur Delacour - representative for Beauxbatons in the Triwizard Tournament
Frank Bryce - the hapless caretaker of the Riddle house who soon becomes prey for the predator
Tom Marvolo Riddle (aka Lord Voldemort) - the personification of evil throughout the Harry Potter books
Dobby - House-elf to the Malfoys (II); freed, much to his delight, thanks to Harry; avid admirer of Harry; obtained a position at Hogwarts in the kitchen
Winky - House-elf to Mr. Crouch; freed, much to her dismay, after a mishap at the Quidditch World Cup; obtained a position at Hogwarts in the kitchen
Dementors
