Harry Potter: Books vs Series

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

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Bel Powley

Bel Powley as Petunia Dursley in HBO's Harry Potter
PlaysPetunia Dursley
Born7 March 1992, Hammersmith, London
Age when filming began33 (July 2025)
Age at the premiere34 (25 December 2026)
FromEngland
IMDbBel Powley

Photo: HBO

Bel Powley plays Aunt Petunia, and her voice opens the first teaser. She is known for The Diary of a Teenage Girl and for playing Miep Gies in A Small Light.

How the books describe Petunia Dursley, and every difference so far, is on the character page.

Other roles

YearTitleRole
2015The Diary of a Teenage GirlMinnie Goetze
2020The King of Staten IslandKelsey
2019–2025The Morning ShowClaire Conway
2023A Small LightMiep Gies

Sources: Wikipedia.

More of the cast

Dominic McLaughlin · Arabella Stanton · Alastair Stout · John Lithgow · Janet McTeer · Paapa Essiedu · Nick Frost · Lox Pratt · Daniel Rigby · Amos Kitson · Rory Wilmot · Luke Thallon · Katherine Parkinson · Ruari Spooner · Gracie Cochrane · Anton Lesser · Warwick Davis · Sirine Saba · Louise Brealey · Orson Matthews · Paul Whitehouse · Johnny Flynn · Kit Harington · Rafe Spall. See also the ages of the cast and 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

13 November 2026
New pages: a page for each actor, the ages of the cast, new scenes not in the book, houses and uniforms, magical creatures and music. More »

13 November 2026
New page: sets and filming locations, from the new Hogwarts at Leavesden to London Zoo, King’s Cross and the Cornish coast. More »

13 November 2026
Dominic McLaughlin, Arabella Stanton and Alastair Stout, the new Harry, Hermione and Ron, talked to Scholastic News about the auditions, getting the parts and filming. More »

10 November 2026
Snape actor Paapa Essiedu told Vanity Fair he still doesn’t really know what happens in Deathly Hallows, and was baffled by Dumbledore’s death. 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