David Yates Director Daniel Radcliffe Harry Potter Actor Rupert Grint Ron Weasley Actor Emma Watson Hermione Granger Actor Ralph Fiennes Voldemort Actor Alan Rickman Severus Snape Actor Robbie Coltrane Hagrid Actor Helena Bonham Carter Bellatrix Lestrange Actor Jim Broadbent Horace Slughorn Actor Gary Oldman Sirius Black Actor Maggie Smith Minerva McGonagall Actor David Thewlis Remus Lupin Actor Emma Thompson Sybill Trelawney Actor Jason Isaacs Lucius Malfoy Actor Tom Felton Draco Malfoy Actor Michael Gambon Albus Dumbledore Actor Ciarán Hinds Aberforth Dumbledore Actor John Hurt Mr. Ollivander Actor Matthew Lewis Neville Longbottom Actor Julie Walters Molly Weasley Actor Bonnie Wright Ginny Weasley Actor Warwick Davis Filius Flitwick, Griphook Actor Benedict Clarke Young Severus Snape Actor Ellie Darcey-Alden Young Lily Potter Actor Ariella Paradise Young Petunia Dursley Actor Mark Williams Arthur Weasley Actor Steve Kloves Screenwriter David Heyman Producer David Barron Producer J.K. Rowling Producer Lionel Wigram Executive Producer Eduardo Serra Cinematographer Mark Day Film Editing Alexandre Desplat Original Music Stuart Craig Production Design Jany Temime Costume Design