Characters
A
- Mrs. Abbott – Mother of Hannah Abbott, killed by Death Eaters
- Hannah Abbott – Hufflepuff student in Harry Potter's year, member of Dumbledore's Army, later the landlady of the Leaky Cauldron and wife of Neville Longbottom[1]
- Euan Abercrombie – Gryffindor student who enters Hogwarts in Harry's fifth year
- Stewart Ackerley – Ravenclaw student who enters Hogwarts in Harry's fourth year
- Falco Aesalon – Ancient Greek wizard, first known Animagus
- Cornelius Agrippa – Wizard imprisoned by Muggles for his "evil" writings
- Alderton – Alleged Muggle-born sent to Azkaban in Deathly Hallows despite claiming relation to Arkie Alderton
- Archibald Alderton – Blew up the town of Little Hangleton in Hampshire
- Arkie Alderton – Famous broomstick designer
- PC Anderson – A Muggle police officer from the Harry Potter prequel.[2]
- Bertram Aubrey – Hogwarts student bullied by James Potter and Sirius Black
- Avery – Death Eater, Slytherin student who befriended Severus Snape while at Hogwarts
- Arnold the pygmy puff (that Ginny wants from Fred and George's store)
[edit]B
- Bathsheda Babbling – Ancient Runes teacher at Hogwarts
- Malcolm Baddock – Slytherin student who is at Hogwarts during Harry's fourth year
- Mr Bagman – Father of Ludovic and Otto Bagman, friend of Death Eater Augustus Rookwood
- Ludovic Bagman – Quidditch Beater for the Wimbourne Wasps and Head of the Department of Games and Sports within the Ministry of Magic
- Otto Bagman – Brother of Ludovic Bagman
- Millicent Bagnold – Minister for Magic before Cornelius Fudge
- Bathilda Bagshot – Author of A History of Magic, great aunt of Gellert Grindelwald
- Heathcote Barbary – Guitarist for the Weird Sisters
- Musidora Barkwith – Composer noted for her work, Wizarding Suite
- Baruffio – Namesake of 'Baruffio's Brain Elixir'
- Ali Bashir – Flying carpet merchant who attempts to establish a flying carpet business in Britain in Goblet of Fire
- Basil - An employee of the Ministry of Magic
- Hetty Bayliss – Muggle who witnesses Arthur Weasley's flying Ford Anglia
- Oswald Beamish – Goblin rights pioneer
- Herbert Beery – Past Herbology teacher at Hogwarts who left to teach at the Wizarding Academy of Dramatic Arts
- Flavius Belby – First wizard to write about the lethifold
- Marcus Belby – Ravenclaw student at Hogwarts a year above Harry Potter and nephew of the inventor of the Wolfsbane potion
- Humphrey Belcher – Wizard who experimented with cheese cauldrons
- Katie Bell – Gryffindor student one year above Harry Potter; Chaser on the Gryffindor Quidditch team
- Amy Benson – Girl at the orphanage with Tom Marvolo Riddle
- Cuthbert Binns – Ghost, History of Magic professor
- Dennis Bishop – Boy at the orphanage with Tom Marvolo Riddle
- Alphard Black – Son of Pollux Black and Irma Crabbe, brother of Cygnus and Walburga Black, maternal uncle to Sirius Black and Regulus Arcturus Black, disowned for financially supporting Sirius Black after he left home to live with the Potter family
- Andromeda Black – See Andromeda Tonks
- Arcturus Black – Son of Phineas Nigellus Black and Ursula Flint, brother of Sirius, Phineas, Belvina, and Cygnus Black, husband of Lysandra Yaxley, father of Callidora, Charis, and Cedrella Black
- Arcturus Black – Son of Hesper Gamp, husband of Melania MacMillan, father of Lucretia and Orion Black
- Bellatrix Black – See Bellatrix Lestrange
- Callidora Black – See Callidora Longbottom
- Cassiopeia Black – Daughter of Cygnus Black and Violetta Bulstrode, sister of Pollux, Marius, and Dorea Black
- Cedrella Black – See Cedrella Weasley
- Charis Black – See Charis Crouch
- Cygnus Black – Son of Phineas Nigellus Black and Ursula Flint, brother of Sirius, Phineas, Belvina, and Arcturus Black, husband of Violetta Bulstrode, father of Pollux, Cassiopeia, Marius, and Dorea Black
- Cygnus Black – Son of Pollux Black and Irma Crabbe, brother of Walburga and Alphard Black, husband of Druella Rosier, father of Bellatrix, Andromeda, and Narcissa Black, maternal uncle to Sirius and Regulus Arcturus Black, great-grandson of Phineas Nigellus Black
- Dorea Black – Daughter of Cygnus Black and Violetta Bulstrode, sister of Pollux and Cassiopeia Black, mother of Charlus Potter's son
- Druella Black (née Rosier) – Wife of Cygnus Black, mother of Bellatrix, Andromeda and Narcissa Black
- Elladora Black – Sister of Phineas Nigellus, Sirius, and Isla Black
- Hesper Black (née Gamp) – Wife of Sirius Black, mother of Arcturus, Lycoris, and Regulus Black
- Irma Black (née Crabbe) – Wife of Pollux Black, mother of Walburga, Alphard and Cygnus Black
- Isla Black – See Isla Hitchens
- Lucretia Black – See Lucretia Prewett
- Lycoris Black – Daughter of Sirius Black and Hesper Gamp, sister of Arcturus and Regulus Black
- Lysandra Black (née Yaxley) – Wife of Arcturus Black, mother of Callidora, Charis and Cedrella Black
- Marius Black – Son of Cygnus Black and Violetta Bulstrode, brother of Pollux, Cassiopeia and Dorea Black, disowned for being a Squib
- Melania Black (née MacMillan) – Wife of Arcturus Black, mother of Lucretia and Orion Black
- Narcissa Black – See Narcissa Malfoy
- Orion Black – Son of Arcturus Black and Melania MacMillan, brother of Lucretia Black, husband of Walburga Black, father of Sirius and Regulus Arcturus Black
- Phineas Black – Son of Phineas Nigellus Black and Ursula Flint, brother of Sirius, Cygnus, Belvina and Arcturus Black, disowned for supporting Muggle rights
- Phineas Nigellus Black – Brother of Sirius, Elladora, and Isla Black, husband of Ursula Flint, father of Sirius, Phineas, Cygnus, Belvina, and Arcturus Black, Headmaster of Hogwarts
- Pollux Black – Son of Cygnus Black and Violetta Bulstrode, brother of Cassiopeia, Marius and Dorea Black, husband of Irma Crabbe, father of Walburga, Alphard and Cygnus Black
- Regulus Black – Son of Sirius Black and Hesper Gamp, brother of Lycoris and Arcturus Black
- Regulus Arcturus Black – Son of Orion and Walburga Black, brother of Sirius Black, Slytherin Quidditch Seeker, reformed Death Eater
- Sirius Black – Brother of Phineas Nigellus, Elladora and Isla Black, died at a young age
- Sirius Black – Son of Phineas Nigellus and Ursula Flint, husband of Hesper Gamp, brother of Phineas, Cygnus, Belvina and Arcturus Black, father of Arcturus, Lycoris and Regulus Black
- Sirius Black – Son of Orion and Walburga Black, brother of Regulus Arcturus Black, godfather of Harry Potter, Gryffindor student at Hogwarts (only Black not to be in Slytherin), Animagus, disowned for running away from home to live with the Potter family, member of the Order of the Phoenix, killed by his cousin Bellatrix Lestrange
- Ursula Black (née Flint) – Wife of Phineas Nigellus Black, mother of Sirius, Phineas, Cygnus, Belvina and Arcturus Black
- Violetta Black (née Bulstrode) – Wife of Cygnus Black, mother of Pollux, Cassiopeia, Marius and Dorea Black
- Walburga Black (née Black) – Daughter of Pollux Black and Irma Crabbe, sister of Alphard and Cygnus Black, wife of Orion Black, mother of Sirius and Regulus Arcturus Black
- Balfour Blane – Established the Committee on Experimental Charms
- Timothy Blenkinsop – Puddlemere United supporter
- Bletchley – Ministry of Magic employee whose office was drenched with rain
- Miles Bletchley – Keeper on the Slytherin Quidditch team during Harry's time at Hogwarts
- Beatrix Bloxam (1794–1910) – Author of the banned children's book series The Toadstool Tales
- Blodwyn Bludd – Vampire who was known as the 'Vampire of the Valleys'. Famous for singing to his victims before biting them in their neck.
- Stubby Boardman – Lead singer of the Hobgoblins
- Melinda Bobbin – Hogwarts student during Harry's time at school, her family owns a chain of apothecaries
- Broderick Bode – Ministry of Magic employee in the Department of Mysteries, killed by Devil's Snare
- Bole – Slytherin Quidditch Beater
- Pierre Bonaccord – First Supreme Mugwump of the International Confederation of Wizards
- Amelia Susan Bones – Head of the Department of Magical Law Enforcement, aunt of Susan Bones
- Edgar Bones – Member of the original Order of the Phoenix, brother of Amelia Susan Bones, uncle of Susan Bones
- Susan Bones – Hufflepuff student in Harry's year, member of Dumbledore's Army
- Mungo Bonham – Healer who founded St Mungo's Hospital for Magical Ailments and Injuries, Wizard of the Month on J. K. Rowling’s website for March 2005
- Terry Boot – Ravenclaw student in Harry's year, member of Dumbledore's Army. Married to Ceciela Martin, father to Albert "Bert" Arnold, and Lorretta "Larry" Lavern.
- Libatius Borage – Author of Advanced Potion-Making
- Mr Borgin – Proprietor of Borgin & Burkes in Knockturn Alley
- Bertie Bott – Creator of Bertie Bott's Every Flavour Beans
- Bradley – Chaser on the Ravenclaw Quidditch team during Harry's time at Hogwarts
- Barberus Bragge – Chief of the Wizards' Council, introduced the Golden Snitch to Quidditch
- Betty Braithwaite – Reporter for the Daily Prophet
- Rudolf Brand – Captain of the Heidelberg Harriers Quidditch team
- Eleanor Branstone – Hufflepuff student who entered Hogwarts in Harry's fourth year
- Karl Broadmoore – Beater for the Falmouth Falcons Quidditch team with his brother Kevin
- Kevin Broadmoore – Beater for the Falmouth Falcons Quidditch team with his brother Karl
- Mandy Brocklehurst – Ravenclaw student in Harry's year
- Rupert "Axebanger" Brookstanton – Name Hermione Granger came across while searching for the identity of R.A.B.
- Lavender Brown – Gryffindor student in Harry's year, member of Dumbledore's Army, briefly dates Ron Weasley, attends the Yule Ball with Seamus Finnigan
- Frank Bryce – Muggle gardener for the Riddle family, murdered by Lord Voldemort
- Millicent Bulstrode – Slytherin student in Harry's year, member of Umbridge's Inquisitorial Squad
- K. Bundy – Hogwarts student during Harry's time at school
- Rosalind Antigone Bungs – Name that Hermione Granger came across while searching for the identity of R.A.B.
- Charity Burbage – Professor of Muggle Studies at Hogwarts during Harry's time at school
- Caratacus Burke – Co-founder of Borgin and Burkes. Cheated Merope Gaunt, buying a precious heirloom from her at a pittance
- Belvina Burke (née Black) – Daughter of Phineas Nigellus Black and Ursula Flint, sister of Sirius, Phineas, Cygnus and Arcturus Black, wife of Herbert Burke, mother of two sons and one daughter
- Herbert Burke – Husband of Belvina Black, father of two sons and one daughter
- Randolph Burrow – Ravenclaw Quidditch Chaser during Harry's time at Hogwarts
[edit]C
- Sir Cadogan – Armoured knight occupying a painting in Hogwarts
- Cadwallader – Hufflepuff Quidditch Chaser during Harry's time at Hogwarts
- S. Capper – Hogwarts student during Harry's time at school
- Eddie Carmichael – Ravenclaw student one year above Harry Potter
- Alecto Carrow – Sister of Amycus Carrow, Death Eater and professor of Muggle Studies for one year
- Amycus Carrow – Brother of Alecto Carrow, Death Eater and professor of Defence Against the Dark Arts for one year
- Greta Catchlove – Author of Charm Your Own Cheese
- Mary Cattermole – Wife of Reginald Cattermole
- Ellie Cattermole – Daughter of Reg and Mary Cattermole
- Maisie Cattermole – Daughter of Reg and Mary Cattermole
- Alfred Cattermole – Son of Reg and Mary Cattermole
- Reginald Cattermole – Employee of the Magical Maintenance Department for the Ministry of Magic
- Owen Cauldwell – Hufflepuff student who entered Hogwarts during Harry's fourth year
- Chambers – Ravenclaw Quidditch Chaser during Harry's time at Hogwarts
- Cho Chang – Ravenclaw student one year above Harry, Quidditch Seeker, member of Dumbledore's Army, dates Cedric Diggory, Harry Potter, Roger Davies, and Michael Corner
- Glenda Chittock – Presenter of Witching Hour on the Wizarding Wireless Network, J. K. Rowling's Wizard of the Month for October 2004
- Herbert Chorley – Muggle Junior Minister who received a botched Imperius Curse that left him impersonating a duck and attacking innocent civilians
- Agatha Chubb – Wizarding archaeologist who found twelve lead Bludgers from the sixteenth century
- Elfrida Clagg – Chieftainess of the Warlock's Council, made the Golden Snidget a protected species, J. K. Rowling's Wizard of the Month for June 2005
- Penelope Clearwater – Ravenclaw prefect four years above Harry, girlfriend of Percy Weasley
- Edgar Clogg – Ghost who hangs around the Hogwarts Quidditch pitch
- Mrs Cole – Matron of Tom Riddle's orphanage
- Magenta Comstock – Experimental artist, J. K. Rowling's Wizard of the Month for April 2007
- Connolly – Beater for the Irish national Quidditch team
- Buckley Cooper – Daily Prophet reader
- Howland Coopey – Daily Prophet reader with Dragon Pox
- Ritchie Coote – Beater on the Gryffindor Quidditch team during Harry's sixth year
- Michael Corner – Ravenclaw student in Harry's year, member of Dumbledore's Army, dates Ginny Weasley and Cho Chang
- Irma Crabbe – See Irma Black
- Crabbe Sr – Death Eater, father of Vincent Crabbe
- Vincent Crabbe – Slytherin student in Harry's year, son of Death Eater, Slytherin Quidditch team Beater, member of the Inquisitorial Squad
- Mr Creevey – Muggle milkman, father of Colin and Dennis Creevey
- Colin Creevey – Muggle-born Gryffindor student one year below Harry, brother of Dennis Creevey, member of Dumbledore's Army, killed in seventh book
- Dennis Creevey – Muggle-born Gryffindor student three years below Harry, brother of Colin Creevey, member of Dumbledore's Army
- Dirk Cresswell – Muggle-born Head of the Goblin Liaison Office
- Croaker – Ministry of Magic employee in the Department of Mysteries
- Doris Crockford – Meets Harry Potter in the Leaky Cauldron on the day Harry returns to the Wizarding world
- Crispin Cronk – Sent to Azkaban for keeping sphinxes in his backyard
- Glenda Crook – Works for the Campaign for Greater Freedom for Wizards
- Bartemius "Barty" Crouch Sr – Head of the Department of International Magical Cooperation, father of Barty Crouch Jr
- Bartemius "Barty" Crouch Jr – Death Eater, son of Barty Crouch Sr
- Caspar Crouch – Husband of Charis Black, father of one son and two daughters
- Charis Crouch (née Black) – Daughter of Arcturus Black and Lysandra Yaxley, wife of Caspar Crouch, mother of one son and two daughters
- Gideon Crumb – Plays bagpipes for the Weird Sisters
- Barnabas Cuffe – Editor of the Daily Prophet
[edit]D
- Hector Dagworth-Granger – Founder of the Most Extraordinary Society of Potioneers
- Roger Davies – Ravenclaw student two years above Harry, Quidditch Chaser and Captain, attended the Yule Ball with Fleur Delacour
- John Dawlish – Auror
- Sir Nicholas de Mimsy-Porpington/Nearly Headless Nick – Gryffindor House ghost
- Caradoc Dearborn – Member of the original Order of the Phoenix
- Apolline Delacour – Wife of M. Delacour (first name unknown), mother of Fleur and Gabrielle Delacour
- Fleur Delacour – Daughter of Apolline and M. Delacour (first name unknown), sister of Gabrielle Delacour, wife of Bill Weasley, mother of Victoire, Dominique and Louis Weasley, participated in the Triwizard Tournament representing Beauxbatons
- Gabrielle Delacour – Daughter of Apolline and M. Delacour (first name unknown), sister of Fleur Delacour
- Monsieur Delacour (first name unknown) – Husband of Apolline Delacour, father of Fleur and Gabrielle Delacour
- Sir Patrick Delaney-Podmore – Bearded ghost who leads the Headless Hunt
- Derrick – Beater for the Slytherin Quidditch team, three years above Harry
- Dilys Derwent – St Mungo's Healer and Headmistress of Hogwarts
- Barnabas Deverill – One-time owner of the Elder Wand, killed by Loxias
- Philbert Deverill – Manager of Puddlemere United
- Dedalus Diggle – Member of the Order of the Phoenix
- 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, attended the Yule Ball with Cho Chang. Killed by Peter Pettigrew on Voldemort's orders.
- Mrs Diggory – Mother of Cedric Diggory, wife of Amos Diggory
- Ivor Dillonsby – Interviewed by Rita Skeeter for her book The Life and Lies of Albus Dumbledore
- Dimitrov – Chaser for the Bulgarian national Quidditch team
- Harold Dingle – Student at Hogwarts during Harry's time at school
- Armando Dippet – Headmaster of Hogwarts in Tom Riddle's time
- Emma Dobbs – Hogwarts student three years below Harry
- Daisy Dodderidge – Builder and landlady of the Leaky Cauldron, J. K. Rowling’s Wizard of the Month for March 2006
- Elphias Doge – Member of t