The Dursley family consists of:

- Vernon Dursley - Harry Potter's uncle, described as a "big, beefy man with hardly any neck". He is jealous of Harry's magical abilities and despises anything unusual.

- Petunia Dursley (née Evans) - Harry Potter's aunt, described as a "horse-faced woman". She is jealous of her sister Lily's magical abilities and spoils her son Dudley while mistreating Harry.

- Dudley Dursley - Harry Potter's cousin, described as an "obese, unpleasant boy". He bullies Harry and is spoiled by his parents.

From the book:

"Mr. Dursley was the last person you'd expect to be involved in anything strange or mysterious, because he didn't hold with such nonsense."

"Mrs. Dursley was thin and blonde and had nearly twice the usual amount of neck, which came in very useful as she spent so much of her time craning over garden fences, spying on the neighbors."

"Dudley Dursley, meanwhile, had grown into a spoiled bullying teenager"
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