Meet the new Harry Potter: First look at Dominic McLaughlin taking over for Daniel Radcliffe as production begins on HBO series

Years in the making, HBO’s planned Harry Potter series adaptation is closer than ever to coming to the small screen.

Production has commenced on the series at Warner Bros. Studios Leavesden, U.K., the studio announced on Monday. Leavesden houses the sets from the original film adaptations and is popular tourist destination.

The production announcement was accompanied by the first image of Dominic McLaughlin as the new Harry Potter.

The backstory

First revealed as a possibility in early 2021, the upcoming television show is expected to last for several years, with each season adapting one of the seven Harry Potter novels written by J.K. Rowling.

“The series will feature a new cast to lead a new generation of fandom, full of the fantastic detail, much-loved characters, and dramatic locations that Harry Potter fans have loved for over twenty-five years,” Warner Bros. Discovery said in a press release in 2023. “Each season will be authentic to the original books and bring Harry Potter and these incredible adventures to new audiences around the world, while the original, classic, and beloved films will remain at the core of the franchise and available to watch globally.”

In a statement released at the time, Rowling seemed pleased with the concept. “Max’s commitment to preserving the integrity of my books is important to me, and I'm looking forward to being part of this new adaptation which will allow for a degree of depth and detail only afforded by a long-form television series,” the author said. (When it was first announced, the series was going to be produced exclusively for Max. However, as part of a corporate strategic shift made public this year, the project will now debut as an HBO property.)

Ahead, everything to know about the Harry Potter TV series, including its cast, potential release date, and why the controversy about Rowling continues to hang over the project.

Who is playing Harry Potter, Ron Weasley, and Hermione Granger on the Harry Potter show?

On May 27, 2025, HBO announced the three child stars of the series: McLaughlin will play Harry Potter, Alastair Stout will play Ron Weasley, and  Arabella Stanton will play Hermione Granger.

HBO held a casting call in October 2024 to fill the parts, with thousands of kids auditioning. Lucy Bevan and Emily Brockmann are the show's primary casting directors. Bevan has worked on several hit projects, including Barbie, The Batman, Belfast, and Cruella.

"After an extraordinary search led by casting directors Lucy Bevan and Emily Brockmann, we are delighted to announce we have found our Harry, Hermione, and Ron," showrunner and executive producer Francesca Gardiner and director and executive producer Mark Mylod said in a statement. "The talent of these three unique actors is wonderful to behold, and we cannot wait for the world to witness their magic together onscreen. We would like to thank all the tens of thousands of children who auditioned. It's been a real pleasure to discover the plethora of young talent out there."

Who plays Draco Malfo and the rest of his family?

On June 9, 2025, HBO revealed that Lox Pratt has been cast as Harry's nemesis, Draco Malfoy, the role originated onscreen by Tom Felton. Meanwhile, Johnny Flynn will play Draco's father and Voldermort ally Lucius Malfoy, played in the films by Jason Isaacs.

Who plays Profs. Dumbledore, McGonagall, and Snape in the Harry Potter TV series?

On April 14, 2025, HBO confirmed the long-rumored casting choices for several members of the faculty staff at Hogwarts School of Witchcraft and Wizardry, where Harry Potter, Hermione Granger, and Ron Weasley, among other students, go to school. 

John Lithgow was cast as school headmaster Albus Dumbledore, the famed wizard and Harry’s mentor. Richard Harris originally played the character in the Potter film franchise. After Harris died following Harry Potter and the Chamber of Secrets, the late Michael Gambon took over the part.

Janet McTeer is set to star as Minerva McGonagall, the character originally played by the late Maggie Smith in the movies. Paapa Essiedu was hired to play Severus Snape, the complicated antagonist originally played by the late Alan Rickman. Nick Frost, meanwhile, was chosen to star as Rubeus Hagrid, the school’s gamekeeper. The late Robbie Coltrane played the part in the movies.

Lithgow, McTeer, Essiedu, and Frost will be series regulars on the show for the life of its run.

For Season 1, which will adapt Harry Potter and the Sorcerer’s Stone, Luke Thallon was cast as key character Quirinus Quirrell, and Paul Whitehouse as Argus Filch, the school’s caretaker. Respectively, those roles were played in the film franchise by Ian Hart and David Bradley.

“We are happy to announce the casting of John Lithgow, Janet McTeer, Paapa Essiedu, Nick Frost, Luke Thallon and Paul Whitehouse to play Dumbledore, McGonagall, Snape, Hagrid, Quirrell and Filch,” said Francesca Gardiner (Killing Eve, Succession), the Harry Potter series showrunner and executive producer, and Mark Mylod (Succession, The Last of Us), director of multiple episodes and executive producer. “We’re delighted to have such extraordinary talent onboard, and we can’t wait to see them bring these beloved characters to new life.”

Who else is in the cast?

Bel Powley and Daniel Rigby will play, respectively, Petunia and Vernon Dursley, Harry's Muggle aunt and uncle who take him in following his parents' deaths. They were played in the films by Fiona Shaw and Richard Griffiths. Amos Kitson will play Harry's spoiled cousin, Dudley Dursley, portrayed by Harry Melling in the movies.

Katherine Parkinson will play Ron's mom, Molly Weasley, portrayed in the movie series by Julie Walters.

HBO has also announced several of Harry's fellow Hogwarts students: Rory Wilmot is Neville Longbottom, Leo Earley is Seamus Finnigan, Alessia Leoni is Parvati Patil, and Sienna Moosah as Lavender Brown.

Louise Brealey will play the Hogwarts Quidditch coach Madam Rolanda Hooch, originated in the Sorcerer's Stone film by Zoë Wanamaker.

Bertie Carvel (The Crown) will play Minister of Magic Cornelius Fudge in a recurring role. Robert Hardy played the role in the films, beginning with the second installment, Chamber of Secrets. Anton Lesser will play the wand maven Garrick Ollivander.

When is the Harry Potter series expected to premiere on HBO?

While initial speculation was the series would debut in the second half of 2026, HBO officially says Harry Potter will premiere in 2027. But no exact date has been announced.

Why is the Harry Potter series controversial?

The series itself isn’t necessarily controversial, although there has been a strong response to Essiedu playing Snape (more on that below). However, Rowling is a polarizing figure because of her frequent comments about gender views and transgender community.

When the series was first announced in 2023 with Rowling listed as an executive producer, many online critics spoke out against the choice to include the author in the adaptation. Asked then about the author and her views on transgender rights, Bloys declined to discuss the issue. “I don’t have a comment on that today,” he said. “No, I don’t think this is the forum [to discuss that]. That’s a very online conversation, obviously very nuanced and complicated and not something we’re going to get into.”

“Our priority is what’s on the screen,” Bloys added. “Obviously, the Harry Potter story is incredibly affirmative and positive and about love and self-acceptance. That’s our priority — what’s on screen.”

Rowling has been a lightning rod for controversy for years due to her comments. Film stars Daniel Radcliffe, Emma Watson (who played Hermione), and Rupert Grint (who played Ron) have all distanced themselves from her views on the transgender community. This decision has drawn the ire of Rowling. 

More recently, after Rowling celebrated the United Kingdom’s Supreme Court ruling that the legal definition of a woman is based on biological sex and not gender, celebrities like Pedro Pascal, whose sister identifies as trans, and Nicola Coughlan, who has supported transgender rights, have blasted Rowling and the HBO adaptation.

Commenting on an Instagram post critical of Rowling this month, Pascal wrote, “Awful disgusting SH-T is exactly right. Heinous LOSER behavior.”

“Keep your new Harry Potter lads. Wouldn’t touch it with a 10ft pole,” Coughlan, who stars on Bridgerton, wrote on social media.

The backlash to Rowling has also reached the new cast members of the HBO adaptation. In an interview published this month, Lithgow said he was surprised when people took offense to his participation in the show. “I thought, ‘Why is this a factor at all?’ I wonder how J.K. Rowling has absorbed it,” he told the U.K. The Sunday Times. “I suppose at a certain point I’ll meet her, and I’m curious to talk to her.”

When asked in the same interview if the criticism had made him reconsider his choice to star on the show, Lithgow said no.

Beyond Rowling, the series was also criticized for casting Essiedu, who is Black, as the character of Snape. The character is white in Rowling’s books, and so some racist Potter fans took offense to the choice to race-swap the character for the series. However, the decision to cast a Black actor as Snape also drew concern from progressive fans of the franchise.

“I actually am not really bothered by this new Hollywood trend of race-swapping actors at all. A black Commissioner Gordon in Batman, Nick Fury in the MCU etc were all casting choices I fully supported. With Snape, however, I feel it is a different situation,” wrote a fan on Reddit. “Snape being portrayed by a Black actor, I think, has potential for several of Snape’s decisions and experiences to be now attributed to racial issues instead of simply who he is.”

Originally published May 27, 2025. Updated July 14, 2025 with the news of production beginning.