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The new cast and the film cast
HBO’s Harry Potter has an entirely new cast. This is who plays each character in the series, next to the actor who played them in the eight Warner Bros. films.
| Only returning actor | Warwick Davis, Professor Flitwick in the films, plays Flitwick again in the series. |
| Main trio | Dominic McLaughlin, Arabella Stanton and Alastair Stout replace Daniel Radcliffe, Emma Watson and Rupert Grint. |
| Dumbledore | John Lithgow takes over from Richard Harris and Michael Gambon in the Harry Potter films, and from Jude Law, who played a younger Dumbledore in Fantastic Beasts: The Crimes of Grindelwald and The Secrets of Dumbledore. |
The main trio
Hogwarts teachers and staff
Families
| Character | HBO series | Films (2001–2011) |
|---|
| Vernon Dursley | Daniel Rigby | Richard Griffiths |
| Petunia Dursley | Bel Powley | Fiona Shaw |
| Dudley Dursley | Amos Kitson | Harry Melling |
| James Potter | Jasper Talbot | Adrian Rawlins |
| Lily Potter | Hannah Chinn | Geraldine Somerville |
| Molly Weasley | Katherine Parkinson | Julie Walters |
| Percy Weasley | Ruari Spooner | Chris Rankin |
| Fred Weasley | Tristan Harland | James Phelps |
| George Weasley | Gabriel Harland | Oliver Phelps |
| Ginny Weasley | Gracie Cochrane (season 1), Bonnie Hill (season 2) | Bonnie Wright |
| Draco Malfoy | Lox Pratt | Tom Felton |
| Lucius Malfoy | Johnny Flynn | Jason Isaacs (from Chamber of Secrets) |
Students
| Character | HBO series | Films (2001–2011) |
|---|
| Neville Longbottom | Rory Wilmot | Matthew Lewis |
| Seamus Finnigan | Leo Earley | Devon Murray |
| Dean Thomas | Elijah Oshin | Alfred Enoch |
| Oliver Wood | Orson Matthews | Sean Biggerstaff |
| Vincent Crabbe | Finn Stephens | Jamie Waylett |
| Gregory Goyle | William Nash | Joshua Herdman |
| Marcus Flint | Oliver Croft | Jamie Yeates |
Ghosts, portraits and others
| Character | HBO series | Films (2001–2011) |
|---|
| Nearly Headless Nick | Leo Bill | John Cleese |
| Peeves | Peter Serafinowicz | Cut from the first film |
| The Fat Lady | Laura Smyth | Elizabeth Spriggs (first film) |
| The Sorting Hat | David Threlfall | Leslie Phillips (voice) |
| Garrick Ollivander | Anton Lesser | John Hurt |
| Cornelius Fudge | Bertie Carvel | Robert Hardy (from Chamber of Secrets) |
Season 2, Chamber of Secrets
| Character | HBO series | Films (2001–2011) |
|---|
| Gilderoy Lockhart | Kit Harington | Kenneth Branagh |
| Arthur Weasley | Rafe Spall | Mark Williams |
| Dobby | Lenny Rush | Toby Jones (voice) |
| Moaning Myrtle | Molly Hewitt-Richards | Shirley Henderson |
| Tom Riddle | Billy Barratt | Christian Coulson |
Series cast: HarryPotter.com. Film cast: the credits of the films. Every actor in the series, 71 roles in all, is in the full cast.
