|Sorted by surname:||A B C D E F G H I J K L M N O P Q R S T U V W X Y Z|
|No or unknown surname:||A B C D E F G H I J K L M N O P Q R S T U V W X Y Z|
Characters by surname
- Hannah Abbott – Hufflepuff student in Harry Potter's year, prefect of Hufflepuff house in fifth year, member of Dumbledore's Army.
- Ludo Bagman – Head of the Department of Magical Games and Sports within the Ministry of Magic.
- Bathilda Bagshot – author of A History of Magic, great aunt of Gellert Grindelwald.
- Katie Bell – Gryffindor student one year above Harry Potter; Chaser on the Gryffindor Quidditch team, member of Dumbledore's Army.
- Cuthbert Binns – ghost, History of Magic professor.
- Phineas Nigellus Black – late great-great-grandfather of Sirius Black, a former headmaster of Hogwarts whose painting hangs in the office and helps out the current headmaster.
- Sirius Black – Harry Potter's godfather, a member of the Order of the Phoenix and escapee from Azkaban prison, best friend of James Potter, killed in the Battle of the Department of Mysteries by his cousin Bellatrix Lestrange.
- Amelia Bones – Head of the Department of Magical Law Enforcement, aunt of Susan Bones.
- Susan Bones – Hufflepuff student in Harry's year, a member of Dumbledore's Army.
- Terry Boot – Ravenclaw student in Harry's year, a member of Dumbledore's Army.
- Lavender Brown – Gryffindor student in Harry's year, a member of Dumbledore's Army, briefly Ron Weasley's first girlfriend
- Millicent Bulstrode – Slytherin student in Harry's year, a member of Umbridge's Inquisitorial Squad.
- Charity Burbage – Professor of Muggle Studies at Hogwarts during Harry's time at school.
- Frank Bryce – Muggle gardener for the Riddle family, killed by Lord Voldemort.
- Alecto Carrow – sister of Amycus Carrow, Death Eater and professor of Muggle Studies for one year, Deputy Headmistress of Hogwarts under Severus Snape.
- Amycus Carrow – brother of Alecto Carrow, Death Eater and professor of Defence Against the Dark Arts for one year and Deputy Headmaster of Hogwarts under Severus Snape.
- Reginald Cattermole – employee of the Magical Maintenance Department for the Ministry of Magic, impersonated by Ron Weasley.
- Mary Cattermole – Muggle-born wife of Reginald Cattermole, saved by Harry Potter from the Muggle-born Registration Commission.
- Cho Chang – Ravenclaw student one year above Harry, Quidditch Seeker, member of Dumbledore's Army and Harry's first love interest.
- Penelope Clearwater – Ravenclaw prefect and girlfriend of Percy Weasley.
- Mrs. Cole – Matron of the orphanage where Tom Marvolo Riddle lived.
- Michael Corner – Ravenclaw student in Harry's year, member of Dumbledore's Army, Ginny Weasley's first boyfriend.
- Vincent Crabbe, Sr. – Death Eater, father of Vincent Crabbe.
- Vincent Crabbe – Slytherin student in Harry's year, son of Death Eater, Slytherin Quidditch team Beater, a member of the Inquisitorial Squad, a friend of Draco Malfoy.
- Colin Creevey – Muggle-born Gryffindor student one year below Harry, brother of Dennis Creevey, member of Dumbledore's Army, killed during the Battle of Hogwarts, after sneaking away from the younger evacuated students in the seventh book.
- Dennis Creevey – Muggle-born Gryffindor student three years below Harry, brother of Colin Creevey, and member of Dumbledore's Army.
- Dirk Cresswell – Muggle-born Head of the Goblin Liaison Office, went on the run in Deathly Hallows with fellow muggle-born Ted Tonks, Dean Thomas and goblins Gornuk and Griphook, killed while on the run.
- Bartemius (Barty) Crouch, Sr. – Head of the Department of International Magical Cooperation, killed by his son Barty Crouch Jr, Transfigurated into a bone before being buried.
- Bartemius (Barty) Crouch, Jr. – Death Eater, credited with facilitating the return of Lord Voldemort, received a Dementor's Kiss, used Polyjuice Potion to impersonate Alastor Moody.
- Roger Davies – Ravenclaw student who was Captain and Chaser on the Ravenclaw Quidditch team. Went to Yule Ball with Fleur Delacour.
- John Dawlish – an Auror.
- Fleur Delacour – French student who participated in the Triwizard Tournament representing Beauxbatons, later married Bill Weasley.
- Gabrielle Delacour – younger sister of Fleur Delacour, saved by Harry in the Triwizard Tournament.
- Dedalus Diggle – member of the Order of the Phoenix who took the Dursleys into hiding.
- Amos Diggory – works for the Department for the Regulation and Control of Magical Creatures, father of Cedric Diggory.
- Cedric Diggory – Hufflepuff student two years above Harry, school prefect, Quidditch Seeker and captain, co-winner of the Triwizard Tournament, killed by Peter Pettigrew on Lord Voldemort's orders.
- Elphias Doge – School friend of Albus Dumbledore.
- Antonin Dolohov – Death Eater who killed Fabian Prewett, Gideon Prewett, and Remus Lupin.
- Aberforth Dumbledore – Brother of Albus and Ariana Dumbledore, owner of the Hog's Head.
- Albus Dumbledore – Hogwarts Headmaster in Harry Potter's time, Transfiguration professor in Tom Riddle's time, founder of the Order of the Phoenix, Gryffindor student, killed by Severus Snape when Dumbledore ordered him to.
- Ariana Dumbledore - Sister of Albus and Aberforth Dumbledore, killed in three-way duel between her brothers and Gellert Grindelwald
- Kendra Dumbledore - Wife of Percival Dumbledore, mother of Albus, Aberforth and Ariana Dumbledore
- Percival Dumbledore - Husband of Kendra Dumbledore, father of Albus, Aberforth and Ariana Dumbledore
- Dudley Dursley – Muggle son of Vernon Dursley and Petunia Evans, first cousin of Harry Potter.
- Marjorie (Marge) Dursley – Muggle sister of Vernon Dursley.
- Petunia Dursley (née Evans) – Harry's aunt, the sister of his mother Lily. Married to Vernon Dursley and mother of Dudley Dursley.
- Vernon Dursley – Harry Potter's muggle uncle, married to his aunt Petunia and father of Dudley Dursley.
- Marietta Edgecombe – Ravenclaw student one year above Harry, member of Dumbledore's Army's and also betrays Dumbledore's Army to Dolores Umbridge.
- Arabella Figg – Squib neighbour of the Dursleys', member of the Order of the Phoenix.
- Argus Filch – Squib caretaker of Hogwarts.
- Justin Finch-Fletchley – Muggle-born Hufflepuff student in Harry's year, a member of Dumbledore's Army.
- Seamus Finnigan – Irish Gryffindor student in Harry's year, a member of Dumbledore's Army, best friend of Dean Thomas.
- Marcus Flint – Slytherin sixth year Quidditch captain.
- Mundungus Fletcher – Common thief and shifty member of the Order of the Phoenix.
- Filius Flitwick – Charms professor at Hogwarts and Head of Ravenclaw.
- Florean Fortescue – Ice cream vendor at Diagon Alley.
- Cornelius Fudge – Minister for Magic in the first five books, sacked when he denied Lord Voldemort's return for a year.
- Marvolo Gaunt – Pure-blood Father of Merope and Morfin Gaunt, grandfather of Tom Marvolo Riddle.
- Merope Gaunt – The mother of Tom Marvolo Riddle/Lord Voldemort, died after childbirth.
- Morfin Gaunt – Son of Marvolo Gaunt, brother of Merope Gaunt, uncle of Tom Marvolo Riddle, framed by his nephew for Muggle killings, died in Azkaban.
- Anthony Goldstein – Ravenclaw student in Harry's year, member of Dumbledore's Army.
- Gregory Goyle Sr – Death Eater, father of Gregory Goyle Jr.
- Gregory Goyle Jr – Large Slytherin student in Harry's year, Slytherin Quidditch Beater, a member of the Inquisitorial Squad.
- Hermione Granger – Muggle-born Gryffindor student in Harry's year, one of Harry's best friends, founder of Dumbledore's Army and S.P.E.W., Gryffindor Prefect.
- Gregorovitch – highly regarded East European wand-maker.
- Fenrir Greyback – Werewolf working for the Death Eaters.
- Gellert Grindelwald – Dark Wizard, jailed since Albus Dumbledore defeated him in the 1940s.
- Wilhelmina Grubbly-Plank – Substitute Care of Magical Creatures professor during Harry's fourth and fifth years.
- Rubeus Hagrid – Half-giant Keeper of Keys and Grounds at Hogwarts, Care of Magical Creatures professor starting from Harry's third year, a member of the Order of the Phoenix. Once a Hogwarts student, Hagrid was expelled in his third year.
- Rolanda Hooch – Hogwarts flying instructor, Quidditch referee.
- Mafalda Hopkirk – Witch who works in the Ministry of Magic, impersonated by Hermione Granger in Deathly Hallows.
- Angelina Johnson – Gryffindor student two years above Harry, Quidditch Chaser and later captain.
- Lee Jordan – Gryffindor student two years above Harry, Hogwarts Quidditch commentator, good friend of Fred and George Weasley at Hogwarts.
- Igor Karkaroff – Reformed Death Eater, Headmaster of Durmstrang.
- Viktor Krum – Bulgarian Quidditch seeker and Durmstrang student who participated in the Triwizard Tournament, dated Hermione for several months.
- Silvanus Kettleburn - Care of Magical Creature teacher until Harry's third year.
- Bellatrix Lestrange (née Black) – Cousin of Sirius Black, Death Eater who tortured Frank and Alice Longbottom into insanity, killed by Molly Weasley during the Battle of Hogwarts.
- Rabastan Lestrange – Death Eater, brother of Rodolphus Lestrange.
- Rodolphus Lestrange – Death Eater, brother of Rabastan Lestrange, husband of Bellatrix Lestrange.
- Gilderoy Lockhart – Fraudulent celebrity author, Defence Against the Dark Arts teacher, lost his memory after a memory charm backfired and lived in St. Mungo's afterwards.
- Alice Longbottom and Frank Longbottom – parents of Neville Longbottom, members of the original Order of the Phoenix, Aurors, tortured into insanity by Bellatrix LeStrange.
- Augusta Longbottom – Mother of Frank Longbottom and grandmother of Neville Longbottom.
- Neville Longbottom – Gryffindor student in Harry's year, a member of Dumbledore's Army.
- Luna Lovegood – Daughter of Xenophilius Lovegood, Ravenclaw student one year below Harry, a member of Dumbledore's Army, wife of Rolf Scamander, mother of twins Lorcan and Lysander Scamander.
- Xenophilius Lovegood – Father of Luna Lovegood, and editor of The Quibbler.
- Remus Lupin – Gryffindor student before Harry's time, a friend of James Potter, werewolf, husband of Nymphadora Tonks, father of Teddy Lupin, Professor of Defence Against the Dark Arts in Harry's third year, member of the Order of the Phoenix, killed in the Battle of Hogwarts.
- Teddy Lupin – Son of Remus Lupin and Nymphadora Tonks, godson of Harry Potter
- Walden Macnair – The Committee of Disposal of Dangerous Creatures' executioner, also a Death Eater, injured badly and possibly killed by Hagrid during the Battle of Hogwarts after being slammed into a wall.
- Draco Malfoy – Slytherin student in Harry's year, Slytherin Quidditch Seeker, school prefect, member of the Inquisitorial Squad.
- Lucius Malfoy – Draco Malfoy's father, an influential Death-Eater, and, early in the series, governor of Hogwarts.
- Narcissa Malfoy (née Black) – Lucius Malfoy's wife and Draco Malfoy's mother, sister of Bellatrix Lestrange and Andromeda Tonks.
- Scorpius Malfoy - Son of Draco Malfoy and Astoria Greengrass
- Madam Malkin – Clothes shop owner at Diagon Alley.
- Griselda Marchbanks – Governor of the Wizarding Examinations Authority which ran the O.W.L, N.E.W.T., and W.O.M.B.A.T. exams, Wizengamot elder.
- Olympe Maxime – Half-giantess, Headmistress of Beauxbatons.
- Ernie Macmillan – Hufflepuff student in Harry's year, school prefect, member of Dumbledore's Army.
- Minerva McGonagall – Hogwarts Transfiguration professor, Head of Gryffindor House, Deputy Headmistress of Hogwarts, a member of the Order of the Phoenix.
- Cormac McLaggen – Gryffindor student one year above Harry Potter, in love with Hermione Granger, member of the Slug Club and went with Hermione to the Slug Club Christmas Party.
- Graham Montague – Slytherin student who played Chaser on the Slytherin Quidditch Team, got trapped in a Vanishing Cabinet for 6 months.
- Alastor (Mad-Eye) Moody – Retired Auror, member of the Order of the Phoenix, impersonated by Barty Crouch Jr. in 'The Goblet of Fire', killed by Voldemort.
- Theodore Nott – A Slytherin student in the same year as Harry Potter. Theodore Nott is one of the few students who can see Thestrals, suggesting that he has witnessed a death at some point. His father is a Death Eater and described as an elderly widower.
- Bob Ogden – Wizard in the Department of Magical Law Enforcement, led the Magical Law Enforcement Squad in the 1920s. He went to the Gaunts' home after Morfin Gaunt used magic in front of a Muggle and subsequently turned the Gaunts over to the Wizengamot, died sometime before Harry Potter's sixth year.
- Garrick Ollivander – Wandmaker, owner of the Ollivanders shop, kidnapped by the Malfoys for several months and later released by Harry, Ron, and Hermione.
- Pansy Parkinson – Slytherin student in Harry's year, school prefect,
- Padma Patil – Ravenclaw student in Harry's year, identical twin sister of Gryffindor Parvati Patil, a member of Dumbledore's Army.
- Parvati Patil – Gryffindor student in Harry's year, identical twin sister of Ravenclaw Padma Patil, a member of Dumbledore's Army.
- Peter Pettigrew – Former school friend of James Potter, Sirius Black and Remus Lupin. Betrays James and Lily Potter. Death Eater, an unregistered animagus, Pettigrew is first introduced as a rat known as Scabbers. He was later strangled to death by his own metal hand after his loyalty towards Voldemort briefly wavered when Harry confronted him about saving Pettigrew's life.
- Antioch Peverell – Original owner of the Elder Wand in The Tale of the Three Brothers
- Cadmus Peverell – Original owner of the Resurrection Stone in The Tale of the Three Brothers
- Ignotus Peverell – Original owner of the Invisibility Cloak in The Tale of the Three Brothers
- Irma Pince – Hogwarts librarian.
- Sturgis Podmore – Member of the Order of the Phoenix; sentenced to six months in Azkaban for committing a break-in.
- Poppy Pomfrey – Hogwarts school nurse.
- Harry Potter – The main character of the series, Gryffindor student at Hogwarts, orphaned son of James and Lily Potter, husband of Ginny Weasley, father of James Sirius, Albus Severus and Lily Luna Potter.
- James Potter – Harry Potter's father, a member of the Order of the Phoenix, murdered by Lord Voldemort before the series begins.
- Lily Potter (née Evans) – Harry Potter's mother, a member of the Order of the Phoenix, murdered by Lord Voldemort before the series begins.
- Albus Severus Potter - Second child and second son of Harry Potter and Ginny Weasley.
- James Sirius Potter - First and oldest child and first son of Harry Potter and Ginny Weasley
- Lily Luna Potter - Youngest and third child and first and only daughter of Harry Potter and Ginny Weasley
- Quirinus Quirrell – Defence Against the Dark Arts professor in Harry's first year, possessed by Lord Voldemort, and was killed in Philosopher's Stone.
- Helena Ravenclaw/The Grey Lady – Daughter of Rowena Ravenclaw, stole her mother's diadem and hid it, killed by the Bloody Baron and became Ravenclaw's house ghost.
- Mary Riddle - Muggle wife of Thomas Riddle, mother of Tom Riddle Sr., grandmother of Lord Voldemort, killed by her grandson
- Thomas Riddle - Muggle husband of Mary Riddle, father of Tom Riddle Sr., grandfather of Lord Voldemort, killed by his grandson
- Tom Marvolo Riddle – Slytherin who became Lord Voldemort.
- Tom Riddle Sr. - Muggle father of Lord Voldemort, husband of Merope Gaunt, killed by his son
- Demelza Robins – a student at Hogwarts School of Witchcraft and Wizardry, sorted into Gryffindor House. She was a Chaser for the Gryffindor Quidditch team, and was noted to be particularly skilled at dodging Bludgers.
- Augustus Rookwood – Death Eater, spy working in the Department of Mysteries.
- Thorfinn Rowle – Death Eater.
- Albert Runcorn – was a Ministry of Magic employee of high rank during the administration under Pius Thicknesse. His chief function was as an investigator of alleged Muggle-borns.
- Newt Scamander – Magizoologist and author of Fantastic Beasts and Where to Find Them. Was a Hufflepuff and great with making cures for different sicknesses, main character in the Fantastic Beasts film series.
- Rufus Scrimgeour – Head of the Auror Office, replaces Cornelius Fudge as Minister for Magic, killed by Death Eaters.
- Kingsley Shacklebolt – Auror, replaces Pius Thicknesse as Minister for Magic, member of the Order of the Phoenix.
- Stan Shunpike – Conductor of the Knight Bus, later jailed in Azkaban on suspicions of being a Death Eater.
- Aurora Sinistra – Professor and member of the Astronomy Department at Hogwarts.
- Rita Skeeter – Reporter for the Daily Prophet, author of The Life and Lies of Albus Dumbledore, unregistered animagus.
- Horace Slughorn – Former Potions professor at Hogwarts and Head of Slytherin House who taught Tom Marvolo Riddle and returns to Hogwarts in Harry's sixth year.
- Zacharias Smith – Hufflepuff student, a member of Dumbledore's Army.
- Severus Snape – Hogwarts, Potions and later Defence Against the Dark Arts professor, Head of Slytherin House, a member of both the Death Eaters and the Order of the Phoenix to spy for Dumbledore.
- Alicia Spinnet – Chaser on the Gryffindor Quidditch team, two years above Harry Potter at Hogwarts. Member of Dumbledore's Army.
- Pomona Sprout – Hogwarts Herbology professor, Head of Hufflepuff house.
- Pius Thicknesse – Minister for Magic while under the Imperius Curse, later replaced by Kingsley Shacklebolt.
- Dean Thomas – Gryffindor student in Harry's year, a member of Dumbledore's Army, briefly Ginny Weasley's boyfriend, Gryffindor Quidditch Chaser.
- Andromeda Tonks (née Black) – Sister of Bellatrix Lestrange and Narcissa Malfoy, disowned by her family for marrying Muggle-born Ted Tonks, mother of Nymphadora Tonks.
- Nymphadora Tonks – Daughter of Ted and Andromeda Tonks, Auror and member of the Order of the Phoenix. She marries Remus Lupin, and becomes the mother of Teddy Lupin.
- Ted Tonks – Muggle-born husband of Andromeda and father of Nymphadora Tonks, killed by Snatchers.
- Travers – was a wizard and a Death Eater. Escaped from Azkaban after Lord Voldemort's return.
- Sybill Trelawney – Hogwarts Divination professor, predicted the prophecy that prompted Lord Voldemort to go after the Potters.
- Wilkie Twycross – The apparition instructor in Harry Potter and the Half-Blood Prince. Works in the Department of Magical Transportation.
- Dolores Jane Umbridge – Senior Undersecretary to the Minister for Magic, Defence Against the Dark Arts professor, Hogwarts High Inquisitor, Headmistress of Hogwarts, who enthusiastically joins in the persecution of half-bloods and Muggle-borna under Voldemort, sentenced to life imprisonment in Azkaban.
- Emmeline Vance – a member of the party that brings Harry to Grimmauld Place, a member of the Order of the Phoenix. Described as "A stately looking witch in an emerald green shawl".
- Romilda Vane – Hogwarts student who tried to romance Harry with Chocolate Cauldrons containing a love potion from Weasley's Wizard Wheezes.
- Septima Vector – Arithmancy professor at Hogwarts.
- Lord Voldemort (born Tom Marvolo Riddle) – the villain of the series, murderer of Harry Potter's parents and of many others in his quest for immortality and absolute power.
- Myrtle Warren/Moaning Myrtle – Muggle-born Ravenclaw student during Tom Marvolo Riddle's time at Hogwarts, killed by the Basilisk in a girl's bathroom, which she continues to haunt.
- Arthur Weasley – Muggle-obsessed Ministry of Magic employee. Husband of Molly Weasley, father of Bill, Charlie, Percy, Fred, George, Ron, and Ginny Weasley, member of the Order of the Phoenix.
- Bill Weasley – Oldest son of Arthur and Molly Weasley, Gringotts employee, marries Fleur Delacour.
- Charlie Weasley – Second son of Arthur and Molly Weasley, and a member of the Order of the Phoenix, works with dragons in Romania.
- Fred Weasley – Son of Arthur and Molly Weasley and identical twin brother of George Weasley, a member of Dumbledore's Army, Gryffindor Quidditch Beater, co-owner of Weasleys' Wizard Wheezes, killed in the Battle of Hogwarts.
- George Weasley – Son of Arthur and Molly Weasley and identical twin brother of Fred Weasley, member of Dumbledore's Army, Gryffindor Quidditch Beater, co-owner of Weasleys' Wizard Wheezes.
- Ginny Weasley – Only daughter and youngest child of Arthur and Molly Weasley, wife of Harry Potter, mother of James Sirius, Albus Severus and Lily Luna Potter, Gryffindor student one year below Harry, Gryffindor Quidditch Seeker and Chaser, a member of Dumbledore's Army.
- Hugo Weasley - Son of Ron Weasley and Hermione Granger, brother of Rose Weasley
- Molly Weasley (née Prewett) – Wife of Arthur Weasley, mother of Bill, Charlie, Percy, Fred, George, Ron and Ginny Weasley, a member of the Order of the Phoenix.
- Percy Weasley – Third son of Arthur and Molly Weasley, Gryffindor prefect and Head Boy then Ministry of Magic employee, long estranged from his family before joining them against the Death Eaters in Deathly Hallows.
- Ron Weasley – Best friends with Harry Potter and Hermione Granger, youngest Son of Arthur and Molly Weasley, Gryffindor Quidditch Keeper, school prefect, a member of Dumbledore's Army.
- Oliver Wood – Hogwarts student, Gryffindor Quidditch Keeper and captain.
- Rose Weasley - Daughter of Ron Weasley and Hermione Granger, sister of Hugo Weasley
- Corban Yaxley – Death Eater, Head of Magical Law Enforcement under Voldemort's regime.
- Blaise Zabini – Slytherin student in Harry's year, friends with Draco Malfoy.
Characters with no or unknown surname
- Aragog – Giant spider raised by Rubeus Hagrid, lived in the Forbidden Forest.
- Bane – Centaur, not very wizard-friendly.
- Beedle the Bard – Author of several Wizarding fairy tales, including The Tale of the Three Brothers.
- The Bloody Baron – Slytherin House ghost, suitor and killer of Helena Ravenclaw, killed himself in remorse.
- Bogrod – Goblin, Head goblin at Gringotts Wizarding Bank. Put under the Imperius curse when Harry, Ron, and Hermione broke into Gringotts.
- Buckbeak (a.k.a. Witherwings) – Hippogriff belonging at various times to Rubeus Hagrid, Sirius Black and Harry Potter.
- Sir Cadogan – Armoured and somewhat mad knight occupying a painting in Hogwarts.
- Crookshanks – Intelligent cat belonging to Hermione Granger.
- Dobby – House-elf originally belonging to the Malfoy family, which Harry helps set free in Chamber of Secrets. He becomes the only paid house-elf at Hogwarts.
- Fang – Boarhound belonging to Rubeus Hagrid.
- The Fat Friar – Hufflepuff House ghost.
- The Fat Lady – Witch in the painting that conceals the entrance to the Gryffindor common room.
- Fawkes – Phoenix belonging to Albus Dumbledore, saved Harry Potter from Basilisk in the Chamber of Secrets.
- Firenze – Centaur, professor of Divination at Hogwarts.
- Fluffy – Three-headed dog belonging to Rubeus Hagrid, protector of the Philosopher's Stone.
- Gornuk – A goblin like Griphook who worked at Gringotts and later teamed up with Griphook, Dean Thomas, Ted Tonks, and Dirk Cresswell to hide away during Deathly Hallows.
- Grawp – Giant, half-brother of Rubeus Hagrid.
- Griphook – Goblin, works at Gringotts Bank which he helps Harry and his friends steal the cup from within the Lestrange vault.
- Kreacher – House-elf belonging to the Black family, and later Harry Potter. Though at first preferring to serve the pureblood line (including Regulus Black, Narcissa Malfoy, Bellatrix Lestrange, and Draco Malfoy), he eventually likes serving under Harry as he treats him better.
- Nagini – Lord Voldemort's giant pet snake, which does his bidding. She is one of Voldemort's Horcruxes.
- Nearly Headless Nick – Sir Nicholas de Mimsy-Porpington, the Gryffindor House ghost.
- Norbert/Norberta – Dragon belonging to Rubeus Hagrid, later secretly moved to the Dragon Reserve in Romania by friends of Charlie Weasley.
- Peeves – Hogwarts poltergeist, a mischievous magical being.
- Pigwidgeon ("Pig") – Named by Ginny Weasley, a tiny mischievous owl belonging to Ron Weasley.
- Madam Rosmerta – Proprietor of the Three Broomsticks in Hogsmeade.
- Ronan – Centaur living in the Forbidden Forest.
- Scabbers – Ron Weasley's pet rat in the first three stories. He is revealed at the end of Prisoner of Azkaban to be a wizard in animal form: Peter Pettigrew.
- Scabior – Snatcher who captures Harry Potter, Ron Weasley and Hermione Granger in Deathly Hallows.
- Travers – was a wizard and a Death Eater who escaped from Azkaban after Lord Voldemort's return.
- Trevor – The toad belonging to Neville Longbottom that always gets lost.
- Winky – A female house elf who belonged to Bartemius Crouch Sr. until he sacked her, then worked in the Hogwarts kitchen.