This is a list of Harry Potter cast members who portrayed or voiced characters appearing in the film series. The list below is sorted by film and the character's surname, as some characters have been portrayed by multiple actors.
Dozens of actors from the United Kingdom and Ireland portrayed or voiced characters appearing in the Harry Potter film series based on the book series by J. K. Rowling. In all the films, Daniel Radcliffe played Harry Potter, Rupert Grint played Ron Weasley and Emma Watson played Hermione Granger. When they were cast only Radcliffe had previously acted in a film. Complementing them on screen are such actors as Helena Bonham Carter, Jim Broadbent, John Cleese, Robbie Coltrane, Warwick Davis, Ralph Fiennes, Michael Gambon, Brendan Gleeson, Richard Griffiths, Richard Harris, John Hurt, Jason Isaacs, Miriam Margolyes, Helen McCrory, Gary Oldman, Alan Rickman, Fiona Shaw, Maggie Smith, Timothy Spall, Imelda Staunton, David Thewlis, Emma Thompson, and Julie Walters, among others. Thirteen actors appeared as the same character in all eight films of the series.
Some well-known British actors who have not appeared in the series were asked in jest why they had not been cast. When David Yates was directing the fifth film, Bill Nighy (who knew Yates personally) said that he hoped the director would cast him in Harry Potter. "But nobody called", Nighy added. However, in 2009, Yates cast Nighy as Minister of Magic Rufus Scrimgeour in the seventh film. Nighy said, "I am no longer the only English actor not to be in Harry Potter and I am very pleased." Jude Law once quipped, "Nobody's asked me. I was a bit too old for Harry." He would later be cast as a younger Albus Dumbledore in .
J. K. Rowling gave a speech at the premiere of the final film in the series, Harry Potter and the Deathly Hallows – Part 2, on 7 July 2011 in London. Rowling praised the film series' acting talent and announced that there are seven young Harry Potter cast members whom she refers to as "The Big Seven"; they are Radcliffe, Grint, Watson, Tom Felton, Matthew Lewis, Evanna Lynch and Bonnie Wright.
| Character | 2001 | 2002 | 2004 | 2005 | 2007 | 2009 | 2010 | 2011 |
|---|---|---|---|---|---|---|---|---|
| Philosopher's Stone | Chamber of Secrets | Prisoner of Azkaban | Goblet of Fire | Order of the Phoenix | Half-Blood Prince | Deathly Hallows – Part 1 | Deathly Hallows – Part 2 | |
Introduced in Philosopher's Stone | ||||||||
| Katie Bell | Emily Dale | Georgina Leonidas | ||||||
| The Bloody Baron | Terence Bayler | colspan="7" | ||||||
| Susan Bones | Eleanor Columbus | colspan="6" | ||||||
| Vincent Crabbe | Jamie Waylett | colspan="2" | ||||||
| Dedalus Diggle | David Brett | colspan="7" | ||||||
| Albus Dumbledore | Richard Harris | Michael Gambon | Michael Gambon Toby Regbo | Michael Gambon | ||||
| Dudley Dursley | Harry Melling | Harry Melling | Harry Melling | |||||
| Petunia Dursley | Fiona Shaw | Fiona Shaw | Fiona Shaw | Ariella Paradise | ||||
| Vernon Dursley | Richard Griffiths | Richard Griffiths | Richard Griffiths | |||||
| The Fat Friar | Simon Fisher-Becker | colspan="7" | ||||||
| The Fat Lady | Elizabeth Spriggs | Dawn French | colspan="5" | |||||
| Marcus Flint | Jamie Yeates | colspan="6" | ||||||
| Argus Filch | David Bradley | David Bradley | ||||||
| Seamus Finnigan | Devon Murray | |||||||
| Filius Flitwick | Warwick Davis | Warwick Davis | ||||||
| Firenze | Ray Fearon | colspan="7" | ||||||
| Gregory Goyle | Joshua Herdman | |||||||
| Hermione Granger | Emma Watson | |||||||
| Griphook | Verne Troyer Warwick Davis | Warwick Davis | ||||||
| Rubeus Hagrid | Robbie Coltrane | Robbie Coltrane Martin Bayfield | Robbie Coltrane | |||||
| Rolanda Hooch | Zoë Wanamaker | colspan="7" | ||||||
| Angelina Johnson | Danielle Tabor | Tiana Benjamin | colspan="4" | |||||
| Lee Jordan | Luke Youngblood | colspan="6" | ||||||
| Neville Longbottom | Matthew Lewis | |||||||
| Draco Malfoy | Tom Felton | |||||||
| Minerva McGonagall | Maggie Smith | Maggie Smith | ||||||
| Sir Nicholas de Mimsy-Porpington | John Cleese | colspan="6" | ||||||
| Garrick Ollivander | John Hurt | John Hurt | ||||||
| Harry Potter | Daniel Radcliffe Saunders triplets | Daniel Radcliffe | Daniel Radcliffe Toby Papworth | |||||
| James Potter | Adrian Rawlins | Adrian Rawlins | Adrian Rawlins | Adrian Rawlins Robbie Jarvis | Adrian Rawlins | Adrian Rawlins Alfie McIlwain | ||
| Lily Potter | Geraldine Somerville | Geraldine Somerville | Geraldine Somerville | Geraldine Somerville Ellie Darcey-Alden | ||||
| Quirinus Quirrell | Ian Hart | Ian Hart | ||||||
| Helena Ravenclaw | Nina Young | Kelly Macdonald | ||||||
| Severus Snape | Alan Rickman | Alan Rickman Alec Hopkins | Alan Rickman | Alan Rickman Benedict Clarke | ||||
| Sorting Hat | Leslie Phillips | Leslie Phillips | ||||||
| Dean Thomas | Alfred Enoch | Alfred Enoch | ||||||
| Tom | Derek Deadman | Jim Tavare | colspan="5" | |||||
| Lord Voldemort | Richard Bremmer Ian Hart | Christian Coulson | Ralph Fiennes | Hero Fiennes-Tiffin Frank Dillane | Ralph Fiennes | |||
| Fred Weasley | James Phelps | |||||||
| George Weasley | Oliver Phelps | |||||||
| Ginny Weasley | Bonnie Wright | |||||||
| Molly Weasley | Julie Walters | Julie Walters | ||||||
| Percy Weasley | Chris Rankin | Chris Rankin | Chris Rankin | |||||
| Ron Weasley | Rupert Grint | |||||||
| Oliver Wood | Sean Biggerstaff | Sean Biggerstaff | ||||||
Introduced in Chamber of Secrets | ||||||||
| Hannah Abbott | Charlotte Skeoch | Charlotte Skeoch | colspan="4" | |||||
| Aragog | Julian Glover | colspan="6" | ||||||
| Mr Borgin | Edward Tudor-Pole | colspan="6" | ||||||
| Lavender Brown | Kathleen Cauley | Jennifer Smith | Jessie Cave | |||||
| Colin Creevey | Hugh Mitchell | colspan="6" | ||||||
| Armando Dippet | Alfred Burke | colspan="6" | ||||||
| Dobby | Toby Jones | Toby Jones | ||||||
| Justin Finch-Fletchley | Edward Randell | colspan="6" | ||||||
| Cornelius Fudge | Robert Hardy | colspan="3" | ||||||
| Mr Granger | Tom Knight | Ian Kelly | ||||||
| Mrs Granger | Heather Bleasdale | Michelle Fairley | ||||||
| Gilderoy Lockhart | Kenneth Branagh | colspan="6" | ||||||
| Lucius Malfoy | Jason Isaacs | Jason Isaacs | Jason Isaacs | |||||
| Moaning Myrtle | Shirley Henderson | Shirley Henderson | colspan="4" | |||||
| Irma Pince | Sally Mortemore | colspan="6" | ||||||
| Poppy Pomfrey | Gemma Jones | Gemma Jones | Gemma Jones | |||||
| Pomona Sprout | Miriam Margolyes | Miriam Margolyes | ||||||
| Arthur Weasley | Mark Williams | |||||||
Introduced in Prisoner of Azkaban | ||||||||
| Sirius Black | Gary Oldman | Gary Oldman James Walters | Gary Oldman Rohan Gotobed | |||||
| Sir Cadogan | Paul Whitehouse | colspan="5" | ||||||
| Marge Dursley | Pam Ferris | colspan="5" | ||||||
| Shrunken Head | Lenny Henry | colspan="5" | ||||||
| Remus Lupin | David Thewlis | David Thewlis James Utechin | David Thewlis | |||||
| Pansy Parkinson | Genevieve Gaunt | Scarlett Byrne | ||||||
| Parvati Patil | Sitara Shah | Shefali Chowdhury | colspan="2" | |||||
| Peter Pettigrew | Timothy Spall | Timothy Spall Charles Hughes | Timothy Spall | Timothy Spall | ||||
| Ernie Prang | Jimmy Gardner | colspan="5" | ||||||
| Madam Rosmerta | Julie Christie | colspan="5" | ||||||
| Stan Shunpike | Lee Ingleby | colspan="5" | ||||||
| Sybill Trelawney | Emma Thompson | Emma Thompson | Emma Thompson | |||||
| Bill Weasley | Richard Fish | Domhnall Gleeson | ||||||
| Charlie Weasley | Alex Crockford | colspan="5" | ||||||
Introduced in Goblet of Fire | ||||||||
| Heathcote Barbary | Jason Buckle | colspan="4" | ||||||
| Frank Bryce | Eric Sykes | colspan="4" | ||||||
| Cho Chang | Katie Leung | |||||||
| Barty Crouch Jr | David Tennant | colspan="4" | ||||||
| Barty Crouch Sr | Roger Lloyd-Pack | colspan="4" | ||||||
| Gideon Crumb | Steven Claydon | colspan="4" | ||||||
| Roger Davies | Henry Lloyd-Hughes | colspan="4" | ||||||
| Fleur Delacour | Clémence Poésy | Clémence Poésy | ||||||
| Gabrielle Delacour | Angelica Mandy | colspan="4" | ||||||
| Amos Diggory | Jeff Rawle | colspan="4" | ||||||
| Cedric Diggory | Robert Pattinson | Robert Pattinson | colspan="3" | |||||
| Kirley Duke | Jonny Greenwood | colspan="4" | ||||||
| Igor Karkaroff | Predrag Bjelac | colspan="4" | ||||||
| Viktor Krum | Stanislav Ianevski | Stanislav Ianevski | ||||||
| Olympe Maxime | Frances de la Tour | Frances de la Tour | ||||||
| Alastor "Mad-Eye" Moody | Brendan Gleeson | Brendan Gleeson | ||||||
| Padma Patil | Afshan Azad | |||||||
| Rita Skeeter | Miranda Richardson | Miranda Richardson | ||||||
| Orsino Thruston | Philip Selway | colspan="4" | ||||||
| Donaghan Tremlett | Steve Mackey | colspan="4" | ||||||
| Myron Wagtail | Jarvis Cocker | colspan="4" | ||||||
Introduced in Order of the Phoenix | ||||||||
| Amelia Bones | Sian Thomas | colspan="3" | ||||||
| John Dawlish | Richard Leaf | colspan="3" | ||||||
| Elphias Doge | Peter Cartwright | David Ryall | ||||||
| Aberforth Dumbledore | Jim McManus | Ciarán Hinds | ||||||
| Arabella Figg | Kathryn Hunter | colspan="3" | ||||||
| Grawp | Tony Maudsley | colspan="3" | ||||||
| Wilhelmina Grubbly-Plank | Apple Brook | colspan="3" | ||||||
| Mafalda Hopkirk | Jessica Hynes | Sophie Thompson | ||||||
| Kreacher | Timothy Bateson | Simon McBurney | ||||||
| Bellatrix Lestrange | Helena Bonham Carter | |||||||
| Alice Longbottom | Lisa Wood | colspan="3" | ||||||
| Frank Longbottom | James Payton | colspan="3" | ||||||
| Luna Lovegood | Evanna Lynch | |||||||
| Magorian | Michael Wildman | colspan="3" | ||||||
| Kingsley Shacklebolt | George Harris | George Harris | ||||||
| Nymphadora Tonks | Natalia Tena | |||||||
| Dolores Umbridge | Imelda Staunton | Imelda Staunton | ||||||
Introduced in Half-Blood Prince | ||||||||
| Marcus Belby | Robert Knox | colspan="2" | ||||||
| Regulus Black | Tom Moorcroft | colspan="2" | ||||||
| Alecto Carrow | Suzie Toase | |||||||
| Amycus Carrow | Ralph Ineson | |||||||
| Fenrir Greyback | Dave Legeno | |||||||
| Leanne | Isabella Laughland | |||||||
| Narcissa Malfoy | Helen McCrory | |||||||
| Cormac McLaggen | Freddie Stroma | |||||||
| Horace Slughorn | Jim Broadbent | Jim Broadbent | ||||||
| Romilda Vane | Anna Shaffer | |||||||
| Eldred Worple | Paul Ritter | colspan="2" | ||||||
| Blaise Zabini | Louis Cordice | |||||||
Introduced in Deathly Hallows – Part 1 | ||||||||
| Bathilda Bagshot | Hazel Douglas | |||||||
| Charity Burbage | Carolyn Pickles | |||||||
| Mary Cattermole | Kate Fleetwood | |||||||
| Reginald Cattermole | Steffan Rhodri | |||||||
| Mundungus Fletcher | Andy Linden | |||||||
| Gregorovitch | Rade Šerbedžija | |||||||
| Gellert Grindelwald | Michael Byrne Jamie Campbell Bower | |||||||
| Xenophilius Lovegood | Rhys Ifans | |||||||
| Auntie Muriel | Matyelok Gibbs | |||||||
| Albert Runcorn | David O'Hara | |||||||
| Scabior | Nick Moran | |||||||
| Rufus Scrimgeour | Bill Nighy | |||||||
| Pius Thicknesse | Guy Henry | |||||||
| Corban Yaxley | Peter Mullan | |||||||
Introduced in Deathly Hallows – Part 2 | ||||||||
| Bogrod | Jon Key | |||||||
| Ariana Dumbledore | Hebe Beardsall | |||||||
| Hugo Granger-Weasley | Ryan Turner | |||||||
| Rose Granger-Weasley | Helena Barlow | |||||||
| Astoria Greengrass | Jade Gordon | |||||||
| Scorpius Malfoy | Bertie Gilbert | |||||||
| Albus Severus Potter | Arthur Bowen | |||||||
| James Sirius Potter | Will Dunn | |||||||
| Lily Luna Potter | Daphne de Beistegui | |||||||