Arabella Stanton, Dominic McLaughlin (center), and Alastair Stout are set to play the iconic roles of Hermione Granger, Harry Potter, and Ron Weasley in HBO’s upcoming TV adaptation of the wizarding-world franchise. Credit – Courtesy of Warner Bros. Discovery
After seven core-series books, 11 films including three Fantastic Beasts prequels, a stage sequel, and countless spinoffs and inspirations in the form of theme parks, video games, merchandise, and more, the Wizarding World is set to soon expand to one more medium: TV.
Warner Bros. Discovery announced plans in 2023 to develop a new live-action Harry Potter series, with each book in the main franchise to be adapted into one of seven seasons that will come out over 10 years on cable network HBO and its streaming platform HBO Max.
“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,” said J.K. Rowling, who authored the novels that first published in 1997 and who will be an executive producer of the series.
“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 its announcement.
The original movies launched the careers of stars like Daniel Radcliffe and Emma Watson, while also featuring beloved actors such as Alan Rickman, Helena Bonham Carter, and Ralph Fiennes.
With the first season of the reboot expected to be released in late 2026 or early 2027, Warner Bros. Discovery has steadily revealed more and more of the names set to take part, most recently announcing nine roles on June 9.
Here’s everyone we know so far that will be in the new Harry Potter series.
Dominic McLaughlin as Harry Potter
Left: Dominic McLaughlin in a Warner Bros. Discovery cast photo released in 2025. Right: Daniel Radcliffe as Harry Potter on set in 2003.
Aidan Monaghan—HBO; Murray Close—Getty Images
Scottish child actor Dominic McLaughlin is set to take on the role of the eponymous protagonist of the series that was originally portrayed by Radcliffe in the films. McLaughlin will also appear in the Sky comedy film Grow and the BBC children’s action adventure series Gifted, both set to be released in 2025.
McLaughlin’s role in Harry Potter, alongside the other leads, was announced in late May.
Arabella Stanton as Hermione Granger
Left: Dominic McLaughlin in a Warner Bros. Discovery cast photo released in 2025. Right: Emma Watson as Hermione Granger on set in 2004.
Aidan Monaghan—HBO; Murray Close—Getty Images
Arabella Stanton, an 11-year-old British actor best known for portraying Matilda Wormwood in Matilda: The Musical in London’s West End, will portray Harry’s wise friend Hermione Granger, who was portrayed in the films by Watson.
Alastair Stout as Ron Weasley
Left: Alastair Stout in a Warner Bros. Discovery cast photo released in 2025. Right: Rupert Grint as Ron Weasley on set in 2004.
Aidan Monaghan—HBO; Murray Close—Getty Images
Alastair Stout—a relative newcomer whose only previous acting credit, according to The Scotsman, was as “son at dinner” in the closing seconds of a potatoes commercial—rounds out the main trio as redhead Ron Weasley, who was portrayed in the films by Rupert Grint.
John Lithgow as Albus Dumbledore
Left: John Lithgow at the Screen Actors Guild awards in Los Angeles in February 2024. Right: Richard Harris as Dumbledore in an undated photo from set.
Valerie Macon—AFP/Getty Images; AFP/Getty Images
Six-time Emmy winner, two-time Golden Globe winner, and two-time Oscar nominee John Lithgow will portray Albus Dumbledore, the headmaster of the wizarding school Hogwarts. In the main films, Dumbledore was portrayed by the late actors Michael Gambon and Richard Harris, while a younger version of the character in the Fantastic Beasts films was portrayed by Jude Law.
The 79-year-old American actor told ScreenRant that the role of Dumbledore will “define me for the last chapter of my life.”
Janet McTeer as Minerva McGonagall
Left: Janet McTeer during a BAFTA TV preview for Kaos in London in August 2024. Right: Maggie Smith as Minerva McGonagall on set in 2003.
John Phillips—Getty Images for BAFTA; Murray Close—Getty Images
Portraying Minerva McGonagall, Albus Dumbledore’s deputy headmistress, is Golden Globe and Tony winner as well as Emmy- and two-time Academy Award-nominated English actor Janet McTeer. The role was previously portrayed by the late Maggie Smith.
Paapa Essiedu as Severus Snape
Left: Paapa Essiedu poses for a portrait in Brooklyn in May 2022. Right: Alan Rickman as Severus Snape on set in 2006.
Monica Schipper—Getty Images for IMDb; Murray Close—Getty Images
Paapa Essiedu, a 35-year-old British actor and Emmy nominee, will take on the role of Severus Snape, the Hogwarts professor that was portrayed by the late Alan Rickman in the films.
Nick Frost as Rubeus Hagrid
Left: Nick Frost at the How to Train Your Dragon premiere in Los Angeles in June 2025. Right: Robbie Coltrane as Rubeus Hagrid on set in 2003.
Gilbert Flores—Variety/Getty Images; Murray Close—Getty Images
English comedian Nick Frost, who famously co-starred in the Edgar Wright-directed trilogy of films Shaun of the Dead, Hot Fuzz, and The World’s End, will portray Rubeus Hagrid, the Hogwarts groundskeeper portrayed by the late Robbie Coltrane in the film series.
Luke Thallon as Quirinus Quirrell
Left: Luke Thallon. Right: Ian Hart as Quirinus Quirrell in a scene from the first Harry Potter film in 2001.United Agents via IMDb; Warner Bros. via IMDb
Theater rising star Luke Thallon will portray Quirinus Quirrell, a Hogwarts professor portrayed by Ian Hart in the first Harry Potter film.
Paul Whitehouse as Argus Filch
Left: Paul Whitehouse in a September 2024 photo call for Only Fools and Horses The Musical in London. Right: David Bradley as Argus Filch on set in 2004.
Ian West—PA Images/Getty Images; Murray Close—Getty Images
Welsh comedian Paul Whitehouse, who portrayed the minor character Sir Cadogan in the third Harry Potter film, joins the TV series ensemble cast as Argus Filch, the grumpy Hogwarts caretaker portrayed by David Bradley in the films.
Katherine Parkinson as Molly Weasley
Left: Katherine Parkinson at the BAFTA Television Awards at The Royal Festival Hall in London in May 2025. Right: Julie Walters as Molly Weasley in a scene from the final Harry Potter film in 2011.John Clark—BAFTA/Getty Images; Warner Bros. via IMDb
English actor Katherine Parkinson, who won a BAFTA award for her performance in British sitcom The IT Crowd, will take on the character of Molly Weasley, Ron’s mother who was portrayed by Julie Walters in the films.
Lox Pratt as Draco Malfoy
Left: Lox Pratt. Right: Tom Felton as Draco Malfoy on set in 2004.Carla Worden via IMDb; Murray Close—Getty Images
British child actor Lox Pratt, who is also set to star in the BBC’s upcoming Lord of the Flies series adapted from William Golding’s famous novel, will portray Potter’s classmate and nemesis, Draco Malfoy. Tom Felton first played the character in the film franchise and is set to reprise the role in the Broadway production of Harry Potter and the Cursed Child.
Johnny Flynn as Lucius Malfoy
Left: Johnny Flynn at a promotional event for Ripley at Crosby Street Hotel in New York City in March 2024. Right: Jason Isaacs as Lucius Malfoy in a scene from the second Harry Potter film in 2002.Dimitrios Kambouris—Getty Images for Netflix; Warner Bros. via IMDb
South Africa-born actor and musician Johnny Flynn will portray Lucius Malfoy, Draco’s father who was portrayed by Jason Isaacs in the films. Flynn is best known for starring in British sitcom Lovesick and for portraying David Bowie in the 2020 biopic Stardust.
Leo Earley as Seamus Finnigan
Left: Leo Early. Right: Devon Murray as Seamus Finnegan in a scene from the first Harry Potter film in 2001.Warner Bros. Discovery; Warner Bros. via IMDb
Irish newcomer Leo Earley, who appeared in December on the Irish program The Late Late Toy Show, will portray Potter’s schoolmate Seamus Finnigan, who was portrayed by Devon Murray in the films.
Alessia Leoni as Parvati Patil
Left: Alessia Leoni. Right: Shefali Chowdhury as Parvati Patil in a scene from the fourth Harry Potter film in 2007.
Warner Bros. Discovery; Warner Bros. via IMDb
Italian child actor Alessia Leoni, who has no previous acting credits and reportedly answered a casting call last fall, is set to portray Hogwarts student Parvati Patil, who was first portrayed by Sitara Shah in the third Harry Potter film and Shefali Chowdhury in the fourth, fifth, and sixth films.
Sienna Moosah as Lavender Brown
Left: Sienna Moosah. Right: Jessie Cave as Lavender Brown in the sixth Harry Potter film in 2009.Warner Bros. Discovery; Warner Bros. via IMDb
Sienna Moosah, who was also reportedly discovered via open audition, will portray Lavender Brown, another Hogwarts schoolmate, in the upcoming series. In the films, several actors portrayed Brown, who was a minor character until the sixth film, in and after which she was portrayed by Jessie Cave.
Bel Powley as Petunia Dursley
Harry Potter’s spiteful aunt, Petunia Dursley, who was portrayed by Fiona Shaw in the films, will be portrayed in the TV series by Bel Powley. Powley won a number of accolades including the Cannes Film Festival’s Chopard Trophy for her star performance in 2015 coming-of-age film The Diary of a Teenage Girl, and she was nominated for a Critics’ Choice Award and Screen Actors Guild Award for her lead role in World War II biographical miniseries A Small Light (2023).
Daniel Rigby as Vernon Dursley
Petunia’s husband, Vernon Dursley, who was portrayed by the late Richard Griffiths in the films, will be portrayed on the small screen by English actor and comedian Daniel Rigby, who won a BAFTA award for his lead role in the 2011 BBC film Eric & Ernie and is also set to join the ensemble cast of Amazon Prime Video’s upcoming Blade Runner 2099 series.
Bertie Carvel as Cornelius Fudge
Cornelius Fudge, the Minister of Magic portrayed in the films by the late Robert Hardy, will be portrayed in the TV series by Tony-winning British actor Bertie Carvel.
Not yet announced…
A number of key Harry Potter characters—including Voldemort, the franchise’s main villain portrayed primarily by Fiennes in the original films; Ginny Weasley, Ron’s sister and Harry’s love interest portrayed by Bonnie Wright in the films; and Sirius Black, Harry’s godfather portrayed by Gary Oldman in the films—have yet to be officially cast for the upcoming series.
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