Harry Potter
Daniel Radcliffe
Saunders triplets (y)
Daniel Radcliffe
Ron Weasley
Rupert Grint
Hermione Granger
Emma Watson
Hogwarts staff and denizens (human)
Armando Dippet
Alfred Burke (y)
Albus Dumbledore
Richard Harris
Michael Gambon
Argus Filch
David Bradley
Filius Flitwick
Warwick Davis
Warwick Davis
Wilhelmina Grubbly-Plank
Apple Brook
Rubeus Hagrid
Robbie Coltrane
Robbie Coltrane
Martin Bayfield (y)
Robbie Coltrane
Madam Hooch
Zoe Wanamaker
Gilderoy Lockhart
Kenneth Branagh
Minerva McGonagall
Maggie Smith
Irma Pince
Sally Mortemore
Poppy Pomfrey
Gemma Jones
character will reappear
Horace Slughorn
Jim Broadbent
Severus Snape
Alan Rickman
Alan Rickman
Alec Hopkins (y)
Alan Rickman
Pomona Sprout
Miriam Margolyes
Sybill Trelawney
Emma Thompson
Emma Thompson
will not appear
Dolores Umbridge
Imelda Staunton
"Wizard"
Warwick Davis
Hogwarts staff and denizens (non-human and ghosts)
The Bloody Baron
Terence Bayler
Sir Cadogan
Paul Whitehouse
Everard
Sam Beazley
The Fat Friar
Simon Fisher-Becker
The Fat Lady
Elizabeth Spriggs
Dawn French
The Grey Lady
Nina Young
Moaning Myrtle
Shirley Henderson
Shirley Henderson
will not appear
Nearly Headless Nick
John Cleese
Phineas Nigellus
John Atterbury
Peeves
Rik Mayall (f)
Sorting Hat
Leslie Phillips (v)
Hogwarts students
Hannah Abbott
Charlotte Skeoch
Charlotte Skeoch
Marcus Belby
Robert Knox
Katie Bell
Emily Dale
Georgina Leonidas
Susan Bones
Eleanor Columbus
Miles Bletchley
David Churchyard
Lavender Brown
Jennifer Smith
Jessie Cave
Millicent Bulstrode
Helen Stuart
Cho Chang
Katie Leung
Penelope Clearwater
Gemma Padley
Vincent Crabbe
Jamie Waylett
Colin Creevey
Hugh Mitchell
Roger Davies
Henry Lloyd-Hughes
Cedric Diggory
Robert Pattinson
Robert Pattinson (f)
Justin Finch-Fletchley
Edward Randell
Marcus Flint
Jamie Yeates
Seamus Finnigan
Devon Murray
Gregory Goyle
Joshua Herdman
Terence Higgs
Will Theakston
Angelina Johnson
Danielle Tabor
Tiana Benjamin
Leanne
Isabella Laughland
Lee Jordan
Luke Youngblood
Neville Longbottom
Matthew Lewis
Luna Lovegood
Evanna Lynch
Ernie Macmillan
Louis Doyle
Louis Doyle
Draco Malfoy
Tom Felton
Cormac McLaggen
Freddie Stroma
Nigel
William Melling
Pansy Parkinson
Genevieve Gaunt
Scarlett Byrne
Padma Patil
Afshan Azad
Parvati Patil
Sitara Shah
Shefali Chowdhury
Adrian Pucey
Scot Fearn
Slightly creepy boy
Ryan Nelson
Zacharias Smith
Nick Shirm
Alicia Spinnet
Leilah Sutherland
Rochelle Douglas
Dean Thomas
Alfred Enoch
character will reappear
Romilda Vane
Anna Shaffer
Fred Weasley
James Phelps
George Weasley
Oliver Phelps
Ginny Weasley
Bonnie Wright
Oliver Wood
Sean Biggerstaff
Blaise Zabini
Louis Cordice
Lord Voldemort and his Death Eaters
Regulus Black
Tom Moorcroft
Alecto Carrow
Suzanne Toase
Amycus Carrow
Ralph Ineson
Barty Crouch Jr
David Tennant
Fenrir Greyback
Dave Legeno
Bellatrix Lestrange
Helena Bonham Carter
Walden Macnair
Peter Best
Peter Best
Lucius Malfoy
Jason Isaacs
Jason Isaacs
Tony Coburn (y)
Jason Isaacs
Narcissa Malfoy
Helen McCrory
Peter Pettigrew
Timothy Spall
Charles Hughes (y)
Timothy Spall
Quirinus Quirrell
Ian Hart
Thorfinn Rowle
Rod Hunt
Travers
Tav MacDougall
Yaxley
Lord Johnpaul Castrianni
Lord Voldemort
Richard Bremmer (y)
Ian Hart (v)
Christian Coulson (y)
Ralph Fiennes
Hero Fiennes-Tiffin (y; 11)
Frank Dillane (y; teen)
Ministry of Magic employees
Bob
Nicholas Blane
Amelia Bones
Sian Thomas
Amos Diggory
Jeff Rawle
Barty Crouch Sr
Roger Lloyd-Pack
John Dawlish
Richard Leaf
Cornelius Fudge
Robert Hardy
Lift
Daisy Haggard (v)
Newspaper vendor
Jamie Wolpert
Mafalda Hopkirk
Jessica Hynes (v)
Arthur Weasley
Mark Williams
Percy Weasley
Chris Rankin
Chris Rankin
Other Order of the Phoenix members
Sirius Black
Gary Oldman
Gary Oldman
James Walters (y)
Dedalus Diggle
David Brett
Elphias Doge
Peter Cartwright
Aberforth Dumbledore
Jim McManus
Arabella Figg
Kathryn Hunter
Remus Lupin
David Thewlis
David Thewlis
James Utechin (y)
David Thewlis
Alastor Moody
Brendan Gleeson
will not appear
Brendan Gleeson
James Potter
Adrian Rawlins
Adrian Rawlins (f)
Adrian Rawlins
Robbie Jarvis (y)
Adrian Rawlins (f)
Lily Potter
Geraldine Somerville
Geraldine Somerville (f)
Geraldine Somerville
Geraldine Somerville (f)
Geraldine Somerville
Kingsley Shacklebolt
George Harris
Nymphadora Tonks
Natalia Tena
Emmeline Vance
Brigitte Millar
Bill Weasley
Richard Fish
Charlie Weasley
Alex Crockford
Molly Weasley
Julie Walters
Julie Walters
Muggles
Frank Bryce
Eric Sykes
Mrs Cole
Amelda Brown
Dudley Dursley
Harry Melling
Harry Melling
Marge Dursley
Pam Ferris
Petunia Dursley
Fiona Shaw
Fiona Shaw
Vernon Dursley
Richard Griffiths
Richard Griffiths
will not appear
Mr Granger
Tom Knight
Mrs Granger
Heather Bleasdale
Malcolm
Richard Macklin
Mr Mason
Jim Norton
Mrs Mason
Veronica Clifford
Piers Polkiss
Jason Boyd
King's Cross railway station security guard
Harry Taylor
TV Weatherman
Miles Jupp
Foreign wizards and witches
Fleur Delacour
Clémence Poésy
will not appear
Gabrielle Delacour
Angelica Mandy
Igor Karkaroff
Predrag Bjelac
Karkaroff's aide
Tolga Safer
Viktor Krum
Stanislav Ianevski
Olympe Maxime
Frances de la Tour
Wizarding world-related
(including Daily Prophet, Diagon Alley, Hogsmeade, Hogwarts Express, Knight Bus, and Knockturn Alley)
Mr Borgin
Edward Tudor-Pole
Bozo (Rita Skeeter's photographer)
Robert Wilfort
Daily Prophet reporter
Peter O'Farrell
Food Trolley Lady
Jean Southern
Margery Mason
Goblin Bank Teller
Warwick Davis
Griphook
Verne Troyer
Leaky Cauldron Maid
Abby Ford
Mr Ollivander
John Hurt
Ernie Prang
Jimmy Gardner
Madam Rosmerta
Julie Christie
Shrunken Head
Lenny Henry (v)
Stan Shunpike
Lee Ingleby
Rita Skeeter
Miranda Richardson
Tom the barman
Derek Deadman
Jim Tavare
Other non-humans
Aragog
Julian Glover (v)
Bane
Jason Piper
Dobby
Toby Jones (v)
Firenze
Ray Fearon (v)
Grawp
Tony Maudsley
Kreacher
Timothy Bateson (v)
Magorian
Michael Wildman
Sanguini
Charlie Bennison
A Often, minor child parts – in this case, Harry as an infant – are played by twins or triplets to avoid overworking the children. The given names of each of the Saunders triplets are unknown; they were credited in the film as "Saunders triplets".
B Warwick Davis played Filius Flitwick in the first two films as an old dwarf-like man with gray hair. In preproduction for the third film, the producers told Davis there was no role for Flitwick, but that they would like to have him play somebody else, at least for a cameo. Davis played a much younger-looking man with black hair and a moustache who directed the choir at the Hogwarts Welcome Feast, and was credited as portraying "Wizard". During preproduction for the fourth film, director Mike Newell told Davis he wanted to keep his look from the last film, but make this the new look for Flitwick. Davis now considers the character he has played some relative of Flitwick, though he is still credited as "Filius Flitwick".
C A scene with Peeves was filmed for Philosopher's Stone, but ended up being cut from the theatrical version.
D Nigel is not a character from the books, but the role he plays is similar to that of the Creevey brothers, who have not appeared in the films (except for the second film, when Colin appeared so that he could be petrified as part of the plot.)
E Robert Knox was stabbed to death on May 24, 2008, before Half-Blood Prince was released.
F The character played by Ryan Nelson was billed as "Slightly Creepy Boy" when a promotional photo of Dumbledore's Army was released. There has been no word from Warner Bros. whether there is a correlation to a named character from the books, or if his character's name is indeed "Slightly Creepy Boy".
G Michael Gambon replaced Richard Harris as Albus Dumbledore from Prisoner of Azkaban onwards after Harris' death.
