The new Harry Potter television series will hold its world premiere in London this December, with WhereToWatch.tv exclusively revealing that the event will take place during the week commencing 13 December. The premiere is expected to bring the stars of HBO’s hotly anticipated adaptation to Leicester Square, as the Wizarding World prepares to return to screens in a brand-new television series.
The event will mark a major moment for the eight-part drama, which reimagines J.K. Rowling’s first Harry Potter book for a new generation, with a fresh cast taking on some of the most recognisable characters in popular culture.
While HBO has yet to officially confirm the premiere arrangements or publish a guest list, the London event is expected to attract the series’ leading cast and creative team. There is also speculation that HBO could film a dedicated television special at the premiere, although this remains unconfirmed.
The series, officially titled Harry Potter and the Philosopher’s Stone, is scheduled to debut on HBO and HBO Max at Christmas 2026.
When and where will the Harry Potter premiere take place?
WhereToWatch.tv can exclusively reveal that the world premiere of the new Harry Potter series will take place in Leicester Square, London, during the week commencing 13 December 2026.
The famous West End location has hosted premieres for some of the biggest film and television releases, making it a fitting setting for one of the year’s most eagerly anticipated fantasy productions.
An event of this scale would give the cast, filmmakers and invited guests an opportunity to celebrate the series ahead of its Christmas launch. Fans will also be keen to discover whether there will be opportunities to see the stars arrive, although public access arrangements have not been confirmed.
HBO has not yet officially announced the date, venue or full attendance list. The premiere timing and location reported here are based on WhereToWatch.tv’s exclusive information.
Which stars are expected at the London premiere?
The premiere is expected to feature members of the show’s principal cast, although HBO has not confirmed which actors will attend.
Leading the new generation of Hogwarts students are three young performers stepping into some particularly famous roles.
- Dominic McLaughlin plays Harry Potter, the young wizard who discovers his magical identity on his eleventh birthday.
- Arabella Stanton stars as Hermione Granger, Harry’s exceptionally bright and determined friend.
- Alastair Stout plays Ron Weasley, Harry’s loyal companion and fellow Hogwarts student.
The adult cast includes several established screen and stage performers, with John Lithgow playing Albus Dumbledore, Janet McTeer as Professor Minerva McGonagall, Paapa Essiedu as Severus Snape and Nick Frost as Rubeus Hagrid.
Other announced cast members include Warwick Davis as Professor Filius Flitwick, Lox Pratt as Draco Malfoy, Rory Wilmot as Neville Longbottom, Johnny Flynn as Lucius Malfoy, Katherine Parkinson as Molly Weasley and Bel Powley as Petunia Dursley.
Daniel Rigby plays Vernon Dursley, while Bertie Carvel appears as Cornelius Fudge and Luke Thallon as Quirinus Quirrell.
The event could also attract the series’ creative team, including writer and executive producer Francesca Gardiner and director and executive producer Mark Mylod. J.K. Rowling, who is an executive producer, is also among the key creative figures behind the adaptation.
However, the attendance of individual actors and producers has not been confirmed, and the final guest list could change.
Could HBO film a Harry Potter premiere TV special?
There is also the possibility that HBO will use the London premiere to film a dedicated television special.
Such a programme could offer behind-the-scenes footage, interviews with the cast, a look at the making of the series and coverage of the stars arriving on the red carpet. It would provide an opportunity to introduce audiences to the new performers and explore how the familiar story has been reimagined for television.
At present, this remains unconfirmed. HBO has not announced a premiere special, so watch this space.
What is the new Harry Potter series about?
The first season is titled Harry Potter and the Philosopher’s Stone and adapts the opening book in Rowling’s bestselling fantasy series.
The story follows Harry, an orphan raised by his aunt and uncle, who has little idea that he belongs to a hidden world of magic. On his eleventh birthday, a letter inviting him to attend Hogwarts School of Witchcraft and Wizardry changes his life.
At Hogwarts, Harry discovers that he is famous in the wizarding world for surviving an encounter with the dark wizard who killed his parents. He also begins to uncover secrets surrounding his past and the dangerous enemy who continues to threaten him.
Alongside Ron and Hermione, Harry explores the school, learns magic and faces challenges that will test his courage, loyalty and friendship.
The television format gives the creative team more room to explore the original book’s characters and events than was possible in a single feature film. The first season is expected to contain eight episodes, allowing the story to unfold across a longer narrative.
The series is based on Rowling’s books and is being produced by HBO in association with Brontë Film and TV and Warner Bros. Television.
Francesca Gardiner is the writer and an executive producer, while Mark Mylod will direct multiple episodes and serve as an executive producer. The executive-producing team also includes Rowling, Neil Blair, Ruth Kenley-Letts and David Heyman.
When does the Harry Potter series start?
The first season of Harry Potter and the Philosopher’s Stone is scheduled to premiere at Christmas 2026 on HBO and HBO Max, where the streaming service is available.
The opening season will contain eight episodes. However, HBO has not yet published a complete episode-by-episode release calendar confirming whether episodes will arrive weekly or according to another schedule.
The London premiere is expected to take place shortly before the series reaches viewers, giving the cast and production team an opportunity to launch the adaptation during the festive period.
For fans who have followed the original books and films for years, the series represents a new opportunity to revisit Harry’s first year at Hogwarts, with a different cast and a television format designed to explore the source material in greater detail.
How to watch Harry Potter in the United States
In the United States, the series will be available on HBO and HBO Max.
Viewers with an eligible HBO subscription or HBO Max plan will be able to watch the new series when it launches at Christmas 2026. Subscription prices and plan options can change, so viewers should check the official HBO Max website for current details.
The series is an HBO original production, with the streaming platform serving as its principal destination.
How to watch Harry Potter in the UK
In the UK, viewers will be able to stream the series on HBO Max, which launched in the country in March 2026.
The service is available directly to subscribers and through selected partners, including Sky and Prime Video. Customers should check their existing package and the relevant provider’s terms to see whether HBO Max is included or requires an additional subscription.
The series is scheduled to arrive at Christmas 2026, and the eight-episode first season will be available through the service.
For the latest subscription options, visit HBO Max UK.
How to watch Harry Potter in Europe
Across Europe, the series will be available on HBO Max in territories where the service operates and carries the programme.
Warner Bros. Discovery has confirmed HBO Max availability in markets including the UK and Ireland, Germany and Italy. Availability, pricing and subscription options can differ between countries, and viewers should check their local HBO Max service for confirmation.
In territories where HBO Max is not available or where distribution arrangements differ, viewers should check local broadcaster and streaming announcements rather than assume the series will be available through the same service everywhere.
A major Christmas event for Harry Potter fans
The new series arrives with considerable expectations, given the enduring popularity of the original books and the eight-film adaptation that followed.
Casting a new generation of performers as Harry, Ron and Hermione gives the production an opportunity to revisit the story for viewers who grew up with the franchise while introducing Hogwarts to younger audiences.
The expected London world premiere will be an important milestone ahead of the Christmas launch. With Leicester Square providing the likely backdrop, the event could bring together the new cast, established stars and the creative team responsible for bringing the Wizarding World back to television.
For now, fans will have to wait for official confirmation of the guest list and whether HBO will produce a dedicated television special. But with the series set to debut at Christmas 2026, the countdown to a new chapter in the Harry Potter story is well underway.
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