Harry Potter: Books vs Series

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

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Release date

Season 1 of HBO's Harry Potter series premieres on 25 December 2026.

Premiere25 December 2026 (Christmas Day)
Where to watchHBO, and streaming exclusively on HBO Max where available (by country)
Season 1Harry Potter and the Philosopher's Stone
Episodes8 (episode guide)
ShowrunnerFrancesca Gardiner
DirectorMark Mylod (several episodes)
Harry PotterDominic McLaughlin (full cast)

One book per season

Each season adapts one of the seven Harry Potter books, starting with Philosopher's Stone. Some actors have already been confirmed for season 2, Chamber of Secrets: Kit Harington as Gilderoy Lockhart, Rafe Spall as Arthur Weasley and Lenny Rush as Dobby, among others.

Timeline

12 April 2023The series is announced, promising to be “authentic to the original books”.
25 March 2026First official teaser. The premiere is set for 25 December 2026.
2 September 2026Second official teaser trailer.
24 September 2026The official cast list reaches more than 70 roles.
29 October 2026First official poster.
25 December 2026Premiere of season 1.

After each episode airs, its differences with the book will be added to every difference.

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