Harry Potter: Books vs Series

Books vs Series · The unofficial guide to HBO's Harry Potter

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Petunia Dursley

Bel Powley as Petunia Dursley in HBO's Harry Potter
Played byBel Powley
First seasonSeason 1, Philosopher’s Stone
Differences2

Photo: HBO

In the books

This is how J.K. Rowling describes Petunia Dursley in Harry Potter and the Philosopher’s Stone:

“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 neighbours.”— PS, ch. 1

In the series

Bel Powley plays Petunia Dursley in HBO’s series. Differences from the books so far:

007

The haircut

Different

Books: Aunt Petunia cuts Harry’s hair so short that he is almost bald, apart from his fringe, and it grows back overnight (PS, ch. 2). Series: after the haircut, Harry’s hair is far from almost bald.

Official images

Images © HBO. More in official images.

Other characters

Harry Potter · Hermione Granger · Ron Weasley · Albus Dumbledore · Minerva McGonagall · Severus Snape · Rubeus Hagrid · Draco Malfoy · Vernon Dursley · Dudley Dursley. See also the full cast.

Premiere

25 Decon HBO Max

Books vs Series

Difference 001 of 15

Snape’s skin colour

Books: Snape has “sallow skin” (PS, ch. 7).

Series: he is played by Paapa Essiedu, a Black British actor.

All 15 differences »

Posters

Harry character poster, HBO's Harry Potter
Harry

All posters »

Latest updates

9 November 2026
New difference: Ron’s eye colour. J.K. Rowling has said Ron’s eyes are blue; in his character poster they are brown. More »

9 November 2026
Character posters of Harry, Hermione and Ron, added to the posters page and their character pages. More »

8 November 2026
New: a page for each episode of season 1, with the chapters it is likely to cover, and an About page. More »

8 November 2026
New pages: characters, seasons, episodes, where to watch, posters, official images, creative team, FAQ and news. More »

All news »

Unofficial fan site. Not affiliated with HBO, Warner Bros. Discovery or J.K. Rowling. Images and videos © HBO / Warner Bros. Discovery.
Book references are to the UK editions: PS = Philosopher's Stone, CoS = Chamber of Secrets. · About this site · Page updated