Roxfortos diákok 

 Sean Biggerstaff - Oliver Wood

 Eleanor Columbus - Susan Bones

 Emily Dale - Katie Bell

 Louis Doyle - Ernie MacMillan

 Alfred Enoch - Dean Thomas

 Tom Felton - Draco Malfoy

 Rupert Grint - Ron Weasley

 Joshua Herdman - Gregory Monstro

 Matthew Lewis - Neville Longbottom

 Hugh Mitchell - Colin Creevey

 Devon Murray - Seamus Finnigan

 Gemma Padley - Penelope Clearwater

 James Phelps - Fred Weasley

 Oliver Phelps - George Weasley

 Daniel Radcliffe - Harry Potter

 Edward Randell - Justin Finch-Fletchley

 Chris Rankin - Percy Weasley

 Charlotte Skeoch - Hannah Abbott

 Danielle Tabor - Katie Bell

 Will Theakston - Terence Higgs

 Emma Watson - Hermione Granger

 Jamie Waylett - Vincent Crak

 Bonnie Wright - Ginny Weasley

 Jamie Yeates - Marcus Flint

 Luke Youngblood - Lee Jordan

Roxfortos tanárok

 David Bradley - Argus Frics

 Kenneth Branagh - Gilderoy Lockhart

 Robbie Coltrane - Rubeus Hagrid

 Warwick Davis - Filius Flitwick

 Richard Harris - Albus Dumbledore

 Miriam Margolyes - Bimba professzor

 Sally Mortemore - Madam Cvikker

 Alan Rickman - Perselus Piton professzor

 Maggie Smith - Minerva McGalagony

Egyéb karakterek

 Richard Griffiths - Vernon bácsi

 Robert Hardy - Cornelius Caramel 

 Jason Isaacs - Lucius Malfoy

 Harry Melling - Dudley Dursley

 Fiona Shaw - Petunia néni

 Julie Walters - Molly Weasley

 Mark Williams - Arthur Weasley