Some are canon characters, some are original, and many are canon characters that are only mentioned or loosely fleshed out in the books.
In the case of the major and important supporting characters, I have invented full biographies, which I am (slowly!) posting on my blog. I’ll link them to each character here as they are published.
For canon characters, I’ve tried to keep to book canon from the original seven novels as much as possible, ignoring other sources (like the films, Wizarding World info, and JKR interviews.)
If you see a canon character in one of the lists below, keep in mind that for many of them, I’ve invented first and middle names, dates of birth, and other biographical details.
I’ve also created family trees on FamilyEcho.
b. 22 July 1859
b. 6 February 1960
b. 31 July 1980
b. 1 January 1882
b. ca 1300
b. ca 1300
Original Character
b. 1928
Original Character
b. 18 September 1956
Original Character
b. 7 June 1896
Original Character
b. 4 September 1923
Original Character
b. 26 December 1922
Original Character
b. 5 April 1894
Original Character
b. 1915
b. 5 June 1931
Original Character
b. 1902
Original Character
b. 1923
b. 6 March 1917
b. 1 September 1863
b. 1960
Original Character
b. 1932
b. 1936
b. 15 May 1934
Original Character
b. 1910
b. 21 November 1937
b. 6 December 1928
Original Character
b. 1897
b. 1908
b. unknown
Original Character
b. 1899
b. 3 November 1959
b. 27 March 1960
Original Character
b. 1851
Original Character
b. 1906
Original Character
b. 1903
Original Character
b. ca 1889
Original Character
b. 1934
Original Character
b. 1940
Original Character
b. 1940
Original Character
b. 1952
b. 1970
b. 1936
b. 1922
Original Character
b. 1 November 1926
Dilys Derwent (1741–1768)
Everard Montague (1768–1821)
Heliotrope Wilkins (1860–1889)
Phineas Nigellus Black (1889–1922)
Armando Dippet (1922–1956)
Albus Dumbledore (1956–1997)
Dolores Umbridge (acting, 1996)
Severus Snape (1997–1998)
Minerva McGonagall (acting, 1996; 1998–2017)
Phineas Nigellus Black (1860–1889)
Armando Dippet (1889–1922)
Galatea Merrythought (1922–1937)
Albus Dumbledore (1937–1944; 1945–1956)
Horace Slughorn (1944–1945, acting)
Filius Flitwick (1956–1963)
Minerva McGonagall (1963–1998)
Gryffindor
Albus Dumbledore (1937–1944; 1945–1956)
Silvanus Kettleburn (1944–1945, temporary)
Diophantus Lemmas (1956–1978)
Minerva McGonagall (1978–1998)
Septima Vector (1998–2025)
Hufflepuff
Perpetua Fancourt (1939–1963)
Pomona Sprout (1963–2017)
Ravenclaw
Galatea Merrythought (1925–1945)
Herbert Beery (1945–1963)
Filius Flitwick (1963–2003)
Slytherin
Herbert Burke (1910–1944)
Horace Slughorn (1944–1981; 1997–1999)
Severus Snape (1981–1997)
Ancient Runes
Frida Thorsun (1955–1990)
Bathsheda Babbling (1990–2012)
Arithmancy
Diophantus Lemmas (1949–1978)
Septima Vector (1978–2025)
Astronomy
Perpetua Fancourt (1939–1983)
Aurora Sinistra (1983–2017)
Care of Magical Creatures
Silvanus Kettleburn (1936–1993)
Rubeus Hagrid (1993–2009)
Wilhelmina Grubbly-Plank (1994–1995, temporary; 1995–1995, temporary)
Charms
Herbert Burke (1910–1956)
Filius Flitwick (1956–2003)
Defence Against the Dark Arts
Galatea Merrythought (1898–1945)
Julian Meadowes (1945–1957)
Terence Baumert (1957–1958)
Quirinius Quirrell (1991–1992)
Gilderoy Lockhart (1992–1993)
Remus Lupin (1993–1994)
Bartemius Theodore Crouch (as Alastor Moody) (1994–1995)
Dolores Umbridge (1995–1996)
Severus Snape (1996–1997)
Amycus Carrow (1997–1998, as Dark Arts)
Divination
Axali Chopra (1922–1951)
Esmeralda Alliette (1951–1979)
Sybill Trelawney (1979–2018)
Flying
Archie Sinclair (1957–1976)
Rolanda Hooch (1976–1998)
Herbology
Armando Dippet (1868–1922)
Herbert Beery (1922–1963)
Pomona Sprout (1963–2017)
Neville Longbottom (2017–present)
History of Magic
Cuthbert Binns (1820–1998)
Muggle Studies
Charity Burbage (1937–1968)
Charles Burbage (1968–1990)
Charity Burbage II (1990–1997)
Alecto Carrow (1997–1998)
Potions
Horace Slughorn (1930–1981; 1996–1999)
Severus Snape (1981–1996)
Transfiguration
Albus Dumbledore (1929–1944; 1945–1956)
Wendolin Brown (1944–1945, temporary)
Minerva McGonagall (1956–1998)
Caretaker
Apollyon Pringle (1943–1972)
Argus Filch (1972–2023)
Groundskeeper
Valentine Ogg (1929–1965)
Rubeus Hagrid (1944–1965, assistant; 1965–2009)
Librarian
Demetria Phalereus (1898–1953)
Irma Pince * (1953–2019)
Matron
Alfidia Soranus (1882–1961)
Poppy Pomfrey (1961–2010)
Albus Dumbledore (1974–1997)
Minerva McGonagall (1974–1998)
Alastor Moody (1974–1977)
Aberforth Dumbledore (1974–1978)
Molly Weasley (née Prewett) (1974–1998)
Arthur Weasley (1974–1998)
Fabian Prewett (1974–1976)
Gideon Prewett (1974–1976)
Marlene McKinnon (1974–1981)
Edgar Bones (1974–1981)
Elphias Doge (1974–1998)
Remus Lupin (1978–1998)
James Potter (1978–1981)
Sirius Black (1978–1998)
Lily Potter (née Evans) (1978–1981)
Peter Pettigrew (1978–1981)
William Weasley (1995–1998)
Charles Weasley (1995–1998)
Nymphadora Tonks (1995–1998)
Kingsley Shacklebolt (1995–1998)
Fred Weasley (1995–1998)
George Weasley (1995–1998)
Harry Potter (1995–1998)
Hermione Granger (1995–1998)
Ronald Weasley (1995–1998)
Justus Pillwickle (1907–1938)
Nathaniel Clearwater (1938–1968)
Bartemius Crouch (1968–1982)
Amelia Bones (1982–1996)
Marius Edgecombe (1945–1956)
Greg McKinnon (1956–1968)
Edward Dawlish (1968–1977)
Amelia Bones (1977–1982)
Rufus Scrimgeour (1982–1996)
Gawain Robards (1996–1997; 1998–2007)
Harry Potter (2007–2022)
Hildebrand Abbot (1940–1956)
Amelia Bonesś(1956–1977)
Gawain Robards (1977–1996)
Hildebrand Abbot (1922–1940)
Marius Edgecombe (1936–1945)
Greg McKinnon (1944–1956)
Amelia Bones (1951–1956)
Alastor Moody (1964–1985)
Rufus Scrimgeour (1969–1982)
Gawain Robards (1971–1977)
Kingsley Shacklebolt (1977–1998)
Edward Dawlish (1979–1968)
Rufinus Lestrange (1955–1981)
Romulus Lestrange (1956–1981)
Remus Lestrange (1956–1978)
George Avery (1955–1979)
Graham Nott (1955–1956); defected
Byron Macnair (1955–1978)
Madoc Borgin (1955–1999)
Antonin Dolohov (1956–1998)
Laurence Rosier (1956–1998)
Sebastian Nott (1956–1998)
Gordon Mulciber (1956–1978)
Orcus Carrow (1956–1969)
Titus Yaxley (1957–1988)
Rabastan Lestrange (1960–1998)
Rodolphus Lestrange
1966–1998)
Igor Karkaroff (1977–1981)
Bellatrix Lestrange (née Black) (1971–1998)
Alexander Crabbe (1975–1998)
Melchior Yaxley (1977–1998)
Lucius Malfoy (1974–1998)
Henry Mulciber (1976–1998)
Severus Snape (1978–1998); defected
Fenrir Greyback (1978–1998)
Amycus Carrow (1979–1998)
Bartemius Theodore Crouch (1979–1998)
Alecto Carrow (1975–1998)
William Avery (1976–1998)
Lucius Malfoy (1974–1998)
Peter Pettigrew (1980–1998)
Draco Malfoy (1997–1998)
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