Harry Edward Melling (born on 13 March 1989) is an English actor. He plays Dudley Dursley in the Harry Potter films and serie. He attended Hendon School and then Mill Hill School. He is the grandson of Patrick Troughton, who starred as the Second Doctor in the science fiction series Doctor Who from 1966 to 1969. He is also the nephew of actors David Troughton and Michael Troughton and the first cousin of cricketer Jim Troughton and actor Sam Troughton. He is a member of the National Youth Theatre. He trained at the Sue Nieto Theatre School in North-West London and is currently attending the London Academy of Music and Dramatic Art.
He also portrays Dudley in the film series, although his role was cut in Harry Potter and the Goblet of Fire and Harry Potter and the Half-Blood Prince. He doesn't have any lines in the third film, Harry Potter and the Prisoner of Azkaban.