New 'Harry Potter' TV Series Set to Premiere Christmas 2026 — Everything We Know

A new chapter in the "Harry Potter" universe is on the way, with HBO confirming a television adaptation set to premiere on Christmas 2026. With a fresh cast and a long-term plan, the series aims to bring J.K. Rowling’s books to life in a new format.

HBO has released the first trailer for its upcoming series "Harry Potter and the Philosopher's Stone," offering fans a glimpse into the highly anticipated television adaptation. The series is set to premiere on Christmas 2026.

A New Take on a Global Franchise

"Harry Potter" remains one of the most successful franchises in the world. Based on the seven books by J.K. Rowling, the story has already been adapted into eight films, along with a stage play and multiple theme park attractions.

Now, Warner Bros. Discovery is expanding the franchise further with a television series. The project was first announced in April 2023 and will adapt the books in a serialized format.

Each season is expected to focus on one book, beginning with "Harry Potter and the Philosopher's Stone" and continuing through "Harry Potter and the Deathly Hallows."

Trailer and Release Date

In March 2026, HBO released the first official trailer for the series. Along with the footage, the network confirmed that the show will debut during the 2026 holiday season, specifically December 25, 2026.

The Christmas premiere positions the series as a major event release, aligning with the franchise’s long-standing popularity.

Cast Revealed

The series features a new cast stepping into the iconic roles. John Lithgow will portray Professor Albus Dumbledore. Luke Thallon has been cast as Professor Quirrell, while Paul Whitehouse will play Argus Filch.

Janet McTeer takes on the role of Professor McGonagall, and Paapa Essiedu will portray Professor Severus Snape. Nick Frost is set to play Rubeus Hagrid.

The central trio has also been introduced. Dominic McLaughlin will play Harry Potter, Arabella Stanton will take on Hermione Granger, and Alastair Stout will appear as Ron Weasley.

None of the cast members from the "Harry Potter" film franchise, including Daniel Radcliffe, Rupert Grint, and Emma Watson, are expected to make cameo appearances in the TV series.

A Long-Term Plan

The series is designed as a long-term project, with plans to span a decade. Each season will adapt material from one of the seven books, though the exact number of seasons has not been finalized.

According to current plans, the structure of the series will depend on how the showrunner chooses to divide the story across seasons.

This approach allows for a more detailed adaptation compared to the films, giving each book more time to unfold on screen.

"Harry Potter and the Philosopher's Stone" will air on HBO and will also be available for streaming on HBO Max.

With a confirmed release date, a full cast lineup, and a clear adaptation plan, HBO’s "Harry Potter" series is shaping up to be a major addition to the franchise. As the premiere approaches, fans can expect a new interpretation of a familiar story, told over a longer and more detailed format.