Elenco confirmado

Daniel Radcliffe - Harry Potter
Rupert Grint - Rony Weasley
Emma Watson - Hermione Granger
Tom Felton - Draco Malfoy
Bonnie Wright - Gina Weasley
Matthew Lewis - Neville Longbotton
Evanna Lynch - Luna Lovegood
Natalia Tena - Ninfadora Tonks
Taylor Triphook - Papel desconhecido
Katie Head - Papel desconhecido
Jim Broadbent - Horácio Slughorn
Helena B. Carter - Bellatrix Lestrange
Helen McCroy - Narcisa Malfoy
Jessie Cave - Lilá Brown
David Bradley - Argo Filch
Robbie Coltrane - Hagrid
Alan Rickman - Severo Snape
Warwick Davis - Flitwick
Maggie Smith - Mineva McGongall
Julie Walters - Molly Weasley
David Thewlis - Remus Lupin
Mark Williams - Arthur Weasley
James Phelps - Fred Weasley
Oliver Phelps - Jorge Weasley
Michael Gambon - Alvo Dumbledore
Katie Leung - Cho Chang
Freddie Stroma - Córmaco McLaggen
Louis Cordice - Blásio Zabini
Georgina Leonidas - Cátia Bell
Anna Shaffer - Romilda Vane
Robert Knox - Marcus Belby
Isabella Laughland - Liane