- Tom Felton - Draco Malfoy
- Emma Thompson - Sybill Trelawney
- Julie Walters - Molly Weasley
- Richard Griffiths - Vernon Dursley
- Fiona Shaw - Petunia Dursley
- Maggie Smith - Minerva McGonagall
- David Bradley - Argus Filch
- Pam Ferris - Marge Dursley
- Dawn French - The Fat Lady
- Julie Christie - Madam Rosmerta
- Robert Hardy - Cornelius Fudge
- Mark Williams - Arthur Weasley
- Harry Melling - Dudley Dursley
- Adrian Rawlins - James Potter
- Geraldine Somerville - Lily Potter
- Lee Ingleby - Stan Shunpike
- Lenny Henry - Shrunken Head (voice)
- Jimmy Gardner - Ernest Prang
- Jim Tavaré - Tom
- Abby Ford - Young Witch Maid
- Oliver Phelps - George Weasley
- James Phelps - Fred Weasley
- Chris Rankin - Percy Weasley
- Bonnie Wright - Ginny Weasley
- Devon Murray - Seamus Finnegan
- Warwick Davis - Filius Flitwick
- Matthew Lewis - Neville Longbottom
- Sitara Shah - Parvati Patil
- Jennifer Smith - Lavender Brown
- Bronson Webb - Slytherin Boy
- Josh Herdman - Gregory Goyle
- Genevieve Gaunt - Pansy Parkinson
- Kandice Morris - Girl 1
- Alfred Enoch - Dean Thomas
- Annalisa Bugliani - Mother in Portrait
- Tess Bu Cuarón - Baby in Portrait
- Violet Columbus - Girl with Flowers
- Paul Whitehouse - Sir Cadogan
- Ekow Quartey - Boy 1
- Ricky Sahota - Boy 2
- Jamie Waylett - Vincent Crabbe
- Sharon Sandhu - Girl 2
- Danielle Tabor - Angelina Johnson
- Freddie Davies - Old Man in Portrait
- Peter Best - The Executioner
- Lewis Barnshaw - Michael McManus (uncredited)
- Ian Brown - Wizard (uncredited)
- Samantha Clinch - Eloise Midgen (uncredited)
- Annie Penn
- Chris Carreras
- Peter MacDonald
- Alfonso Cuarón
- J.K. Rowling
- Vicky Bishop
- Callum McDougall
- Gary Nixon
- Michael Barnathan
- Chris Columbus
- Mark Radcliffe
- John Midgley
- Shawn Murphy
- Stefan Henrix
- Peter Burgis
- Nick Foley
- Andy Kennedy
Capítulo disponible en las siguientes plataformas:
