Harry Melling (36) became world famous for his role as "Dudley Dursley" in the 'Harry Potter' movies. "Dudley" is "Harry Potter's" maternal cousin. Again and again, there are arguments between "Harry" and the small, fat, and above all totally spoiled "Dudley". His parents, "Petunia" (Fiona Shaw) and "Vernon Dursley" (Richard Griffiths, †65), treat the boy like a baby, even during his teenage years, and fulfill his every wish.

If "Dudley" does not get what he wants, he goes completely berserk, screams, and lashes out. His diet consists almost exclusively of sweets and fast food, which also explains his body weight. During his elementary school years, his victim is mainly his cousin "Harry", whom he regularly beats up or makes fun of.

Later, he is in a gang of boys and is called only "Big D" by his buddies. "Dudley" and his gang instill fear in the children of the whole neighborhood and like to trash playgrounds.