Diákok
Afshan Azad - Padma Patil
Tiana Benjamin - Angelina Johnson
Shefali Chowdhury - Parvati Patil
Alfred Enoch - Dean Thomas
Tom Felton - Draco Malfoy
Rupert Grint - Ron Weasley
Joshua Herdman - Gregory Goyle
Katie Leung - Cho Chang
Matthew Lewis - Neville Longbottom
Evanna Lynch - Luna Lovegood
Devon Murray - Seamus Finnegan
James Phelps - Fred Weasley
Oliver Phelps - George Weasley
Daniel Radcliffe - Harry Potter
Nick Shim - Zacharias Smith
Emma Watson - Hermione Granger
Jamie Waylett - Vincent Crabbe
Bonnie Wright - Ginny Weasley
Roxfort
David Bradley - Argus Filch
Apple Brook - Wilhelmina Grubbly-Plank
Robbie Coltrane - Rubeus Hagrid
Warwick Davis - Filius Flitwick
Michael Gambon - Albus Dumbledore
Alan Rickman - Severus Snape
Maggie Smith - Professor McGonagall
Imelda Staunton - Dolores Umbridge
Egyéb szereplők
Helena Carter - Bellatrix Lestrange
Ralph Fiennes - Lord Voldemort
Brendan Gleeson - Alastor "Mad-Eye" Moody
Richard Griffiths - Uncle Vernon
Robert Hardy - Cornelius Fudge
George Harris - Kingsley Shacklebolt
Alec Hopkins - Young Severus Snape
Charles Hughes - Young Peter Pettigrew
Kathryn Hunter - Arabella Figg
Jason Issacs - Lucius Malfoy
Robbie Jarvis - Young James Potter
Richard Leaf - Auror Dawlish
Richard Macklin – Malcolm
Harry Melling - Dudley Dursley
Jim McManus - Aberforth Dumbledore
Gary Oldman - Sirius Black
Chris Rankin - Percy Weasley
Fiona Shaw - Aunt Petunia
Susie Shinner - Young Lily Potter
David Thewlis - Remus Lupin
Sith Thomas - Amelia Bones
Natalie Tena - Nymphadora Tonks
James Utechin - Young Remus Lupin
James Walters -Young Sirius Black
Julie Walters - Molly Weasley
Mark Williams - Arthur Weasley