Daniel Radcliffe, Emma Watson and Rupert Grint Triple Auto James & Oliver Phelps as Fred & George Weasley Double Auto Daniel Radcliffe as Harry Potter Emma Watson as Hermione Granger Rupert Grint as Ron Weasley Dawn French as The Fat Lady Chris Rankin as Percy Weasley David Bradley as Argus Filch Jamie Waylett as Vincent Crabbe Genevieve Gaunt as Pansy Parkinson Richard Griffiths as Uncle Vernon (Redemption) Pam Ferris as Aunt Marge (Redemption) Jimmy Gardner as Ernie Prang (Redemption) Lee Ingleby as Stan Shunpike Harry Melling as Dudley Dursley Pete Best as The Executioner (Dealer Incentive) Warwick Davis as The Choir Conductor   Warwick Davis as The Choir Conductor (From Memorabilia Tin) Warwick Davis as The Choir Conductor (From Memorabilia Tin - Unsigned Variant)