“Faithful adaptations of the book”: Harry Potter’s Warwick Davis teases new details about the upcoming HBO series

HBO’s forthcoming Harry Potter television series is becoming one of the most anticipated reboots in recent memory on the small screen.

Positioned as a 10-year project, the series will be a complete retelling of J.K. Rowling’s seven novels. Each season will be dedicated to a single book of the series. Rather than being paced like the earlier movie series, the new HBO show promises to be slower and more detailed, with deeper character work, restored subplots, and even more information about the wizarding world.

Recently, while speaking with Times Radio, Warwick Davis, who plays Professor Flitwick and Griphook in Harry Potter films, expressed how, for the series, they were working more meticulously. He said:

“I’m working on it at the moment, but I can’t really tell you anything other than we’re retelling those wonderful stories, but with more depth and detail than has been seen before. They’re very faithful adaptations of the book.”

Read on to know what else the actor revealed.

Here is what Warwick Davis said about the upcoming Harry Potter adaptation

Warwick Davis, who is returning as Professor Filius Flitwick in HBO’s forthcoming Harry Potter series, has hinted at how the show will differentiate itself from the blockbuster films. Describing the episodes to Times Radio, Davis said that they are “very faithful adaptations of the books,” and they are developed with more detail and subplots.

The longer television format, according to him, allows the creative team to delve into character arcs, subplots, and intricacies of the world that the films, bound by runtime, weren’t able to explore completely. While he kept his lips sealed about particular details, Davis stressed that audiences will get a more expansive and detailed revisit of the original tale as opposed to a loose reimagining.

Davis, who memorably played both Professor Flitwick and the goblin Griphook in Harry Potter and the Sorcerer’s Stone (2001), and appeared in every film, will only portray Flitwick in the HBO series, with Leigh Gill cast as Griphook.

The series comes amid continuing backlash against Rowling’s anti-trans views, which many fans and cast members of the Harry Potter movies have distanced themselves from. More than 400 creatives signed an open letter calling on the UK film and television industry to support trans rights, including actor Paapa Essiedu, who has been cast as Severus Snape.

What else do we know about the upcoming Harry Potter adaptation

The series was given the green light in July 2025 and went on floors at Warner Bros. According to reports, it is expected to arrive in early 2027 on HBO, with each season dedicated to one of the seven books in the original series.

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A new cast of mostly younger actors has been assembled to play the primary characters of Harry, Ron, and Hermione. Reports confirm that Dominic McLaughlin will play Harry, Alastair Stout will appear as Ron, and Arabella Stanton as Hermione. Alongside them will be John Lithgow as Dumbledore, Janet McTeer as McGonagall, Paapa Essiedu as Snape, and Nick Frost as Hagrid.

This suggests that the pressure on the makers is intense as they dive into the journey of re-creating something that has already been so close to the fans' hearts, and even a minor mistake can prove to be major backlash.

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