Daniel Radcliffe as Harry Potter

Rupert Grint as Ron Weasley

Emma Watson as Hermione Granger

Jim Broadbent as Horace Slughorn

Michael Gambon as Albus Dumbledore

Tom Felton as Draco Malfoy

Alan Rickman as Severus Snape

Bonnie Wright as Ginny Weasley

Jessie Cave as Lavender Brown

Evanna Lynch as Luna Lovegood

Freddie Stroma as Cormac McLaggen

Robbie Coltrane as Rubeus Hagrid

Helena Bonham Carter as Bellatrix Lestrange

Maggie Smith as Minerva McGonagall

Timothy Spall as Peter Pettigrew

David Thewlis as Remus Lupin

Julie Walters as Molly Weasley

David Bradley as Argus Filch

Warwick Davis as Filius Flitwick

Gemma Jones as Poppy Pomfrey

Helen McCrory as Narcissa Malfoy

Natalia Tena as Nymphadora Tonks

Mark Williams as Arthur Weasley

Dave Legeno as Fenrir Greyback

Elarica Johnson as Waitress

Geraldine Somerville as Lily Potter

Oliver Phelps as George Weasley

James Phelps as Fred Weasley

Alfred Enoch as Dean Thomas

Robert Knox as Marcus Belby

Amber Evans as Twin Girl 1

Ruby Evans as Twin Girl 2

Louis Cordice as Blaise Zabini

Scarlett Hefner as Pansy Parkinson

Jamie Waylett as Vincent Crabbe

Josh Herdman as Gregory Goyle

Matthew Lewis as Neville Longbottom

William Melling as Nigel Wolpert

Anna Shaffer as Romilda Vane

Devon Murray as Seamus Finnigan

Georgina Leonidas as Katie Bell

Isabella Laughland as Leanne

Afshan Azad as Padma Patil

Shefali Chowdhury as Parvati Patil

Amelda Brown as Mrs Cole

Hero Fiennes Tiffin as Tom Riddle (11 Years)

Jack Pryor as Skinny Kid

Mark Lockyer as Waiter

Paul Ritter as Eldred Worple

Frank Dillane as Tom Riddle (16 Years)

Joerg Stadler as Male Inferi

Caroline Wildi as Female Inferi

Ralph Ineson as Amycus Carrow

Suzie Toase as Alecto Carrow

Rod Hunt as Thorfinn Rowle

Katie Leung as Cho Chang

Nathan Clarke as Gryffindor Student (uncredited)

Olivia Jewson as Slug Club Party Member (uncredited)

Freddie Rose as Year 7 Schoolboy (uncredited)

Jason Isaacs as Lucius Malfoy (uncredited)