- Primary Subject: HBO's Harry Potter Reboot Series
- Key Update: HBO has officially confirmed the full ensemble cast for its upcoming Harry Potter television series adaptation.
- Status: Confirmed
- Last Verified: November 13, 2026
- Quick Answer: HBO officially revealed the complete cast for its upcoming Harry Potter TV reboot, starring Dominic McLaughlin, Arabella Stanton, and Alastair Stout as the main trio.
Fifteen years after the release of Harry Potter and the Deathly Hallows – Part 2, the wizarding world returns to the small screen with a new generation of stars bringing its beloved wizards, witches, Muggles, and other characters to life.
HBO is adapting J.K. Rowling's book series of the same name, with each book set to be adapted into its own season.
With the new stars officially announced, here's a complete cast and character guide to HBO's Harry Potter reboot.
Dominic McLaughlin as Harry Potter
Up-and-coming young star Dominic McLaughlin takes on the mantle of Harry Potter, a role played by Daniel Radcliffe for a decade.
The 12-year-old actor not only has the look of the next Boy Who Lived but also appears to have the acting chops to bring the beloved character to life. He was selected from tens of thousands of young hopefuls who auditioned during an open casting call, ultimately landing the coveted role.
Arabella Stanton as Hermione Granger
Arabella Stanton has already shown that she could be the perfect actress to take over the role of Hermione Granger from Emma Watson for a new generation of fans.
She not only stars in the lead role in the West End production of Matilda: The Musical, but also voices Hermione in the full-cast audio production of Harry Potter. With these experiences under her belt, Stanton could be the perfect young actress to bring the beloved know-it-all Muggle-born to life on screen.
Alastair Stout as Ron Weasley
Alastair Stout is expected to bring plenty of comedic relief to the new Harry Potter series, just as Rupert Grint did throughout the eight films.
Although he has no previous acting credits, Stout must have impressed the casting team to be selected from around 30,000 hopefuls. The HBO series could serve as a major breakthrough for the young actor, waiting for the world to see what he can bring to the beloved role.
John Lithgow as Albus Dumbledore
Another legendary actor is set to portray Albus Dumbledore in the Harry Potter reboot. Following in the footsteps of Richard Harris, Michael Gambon, and Jude Law, John Lithgow takes on the role of the new Headmaster of Hogwarts School of Witchcraft and Wizardry.
Known for his performances in Conclave, The Crown, and many other acclaimed projects, Lithgow is adding another high-profile role to his already impressive acting career with the Harry Potter series.
Paapa Essiedu as Severus Snape
There's no denying that Alan Rickman was the perfect actor to play Severus Snape, making the role the hardest to fill in the remake. However, Paapa Essiedu is ready to take on the challenge and put his own spin on the character as he steps into the role of Hogwarts' new Potions Master in Harry Potter.
Essiedu has an impressive acting background that he could use in bringing the Head of Slytherin to life. As a Royal Shakespeare Company alum with credits in Gangs of London, The Lazarus Project, Black Mirror, and more, he has plenty of experience to draw from as he takes on this iconic role.
Janet McTeer as Minerva McGonagall
Another actor who will be difficult to replace is Dame Maggie Smith. While it's hard to imagine anyone else playing the beloved Professor Minerva McGonagall, Janet McTeer is ready to take on the celebrated Deputy Headmistress.
McTeer brings an impressive filmography to the table, with credits including Tumbleweeds, Wuthering Heights, and Ozark, among many others. She also boasts an acclaimed career across film, television, and theater, earning Academy Award nominations and a Golden Globe Award for Best Actress.
Nick Frost as Rubeus Hagrid
The role of Rubeus Hagrid is literally a massive pair of shoes to fill, but Nick Frost seems ready to prove he has what it takes to play Hogwarts' new half-giant gamekeeper.
While he's best known for his comedic roles in Hot Fuzz, Green Wing, Paul, and Shaun of the Dead, Frost could bring more than just laughs to the character. He will surely make viewers fall in love with the gentle giant who protects and guides a young wizard throughout his time at Hogwarts.
Gracie Cochrane as Ginny Weasley
Following in the footsteps of Bonnie Wright, Gracie Cochrane will take on the role of Ginny Weasley in the new Harry Potter series.
After appearing in the 2024 historical war drama film Blitz, Cochrane is now set to enter the fantastical world of Harry Potter and bring the beloved youngest Weasley sibling to life.
Lox Pratt as Draco Malfoy
Lox Pratt will bring viewers’ blood to a boil as he takes on the role of Draco Malfoy, previously played by Tom Felton.
As Harry Potter’s arch-nemesis, Draco is set to be the Hogwarts bully who gives Harry, Ron, and Hermione the hardest time throughout their school years.
Amos Kitson as Dudley Dursley
Draco Malfoy isn’t the only bully Harry Potter will face in the HBO reboot. While he will have plenty of enemies at Hogwarts, his cousin, Dudley Dursley, will start giving him a hard time at home at Number 4, Privet Drive.
Now played by Amos Kitson, Dudley marks the young actor’s first credited acting role. He has big shoes to fill and could match or even surpass Harry Melling’s previous performance as the spoiled and bullying cousin in the original movies.
Supporting Cast and Characters
In addition to the major characters, fans will see several supporting roles in the Harry Potter reboot. Here's a look at the actors taking on these beloved characters:
- Rory Wilmot as Neville Longbottom - Rory Wilmot takes over Matthew Lewis' role as Neville Longbottom in HBO's Harry Potter reboot. Starting as a shy, clumsy, and forgetful student, Neville is set to undergo a major transformation that will eventually make him one of the story's central heroes.
- Tristan Harland as Fred Weasley - Previously played by James Phelps, Fred Weasley will now be portrayed by Tristan Harland. He is the bold, witty, and mischievous half of the Weasley twins.
- Gabriel Harland as George Weasley - Completing the Weasley twins is Gabriel Harland as George. Like Fred, George is known for his mischievous personality and will provide plenty of comedic relief throughout the series.
- Ruari Spooner as Percy Weasley - Another Weasley sibling fans will meet in Harry Potter is Percy, played by Ruari Spooner. The Gryffindor Prefect will eventually pursue a career at the Ministry of Magic.
- Katherine Parkinson as Molly Weasley - Katherine Parkinson replaces Julie Walters as the new Molly Weasley. The fierce matriarch of the Weasley family has a soft spot for Harry, serving as a loving mother figure who is always ready to welcome him into her home at the Burrow.
- Bel Powley as Petunia Dursley - Following Fiona Shaw's portrayal, Bel Powley is the next actress to play Petunia Dursley, who mistreats Harry throughout much of his childhood. Despite being his maternal aunt, Petunia harbors deep resentment toward her nephew because of her jealousy of her sister, Lily.
- Daniel Rigby as Vernon Dursley - Petunia isn't the only one who forces Harry to sleep in the cupboard under the stairs. Her husband, Vernon Dursley, is equally responsible for his mistreatment. Now played by Daniel Rigby, the arrogant, strictly conventional, and anti-magic uncle neglects Harry while spoiling his own son, Dudley.
- Luke Thallon as Quirinus Quirrell - Luke Thallon takes on the role of Harry's first Defence Against the Dark Arts professor, Quirinus Quirrell. Although this marks one of his major television roles, his impressive acting background offers a glimpse of what he could bring to the character, who starts as a shy and anxious professor before revealing his dark connection to Lord Voldemort.
- Warwick Davis as Filius Flitwick - Among the many new cast members of the Harry Potter series, Warwick Davis is the only original film actor returning to reprise his role as Filius Flitwick. More than a decade later, Davis will once again portray Hogwarts' Charms Master and Head of Ravenclaw House.
- Paul Whitehouse as Argus Filch - The halls of Hogwarts are strictly guarded by Argus Filch. Previously played by David Bradley, the character will now be portrayed by Paul Whitehouse, who takes on the role of the school's grumpy and strict caretaker.
- Sirine Saba as Pomona Sprout - Sirine Saba will now portray Pomona Sprout. After appearing in Doctor Who, she is set to take on the role of Hogwarts' Head of Hufflepuff House and Head of the Herbology department.
- Bríd Brennan as Poppy Pomfrey - Bríd Brennan takes on the role of Madam Poppy Pomfrey, the matron and chief healer at Hogwarts School of Witchcraft and Wizardry. She is responsible for treating students whenever they need medical care.
- Louise Brealey as Madam Rolanda Hooch - Following Zoë Wanamaker's portrayal, Louise Brealey will play Madam Rolanda Hooch in the new Harry Potter series. She serves as Hogwarts' flying instructor and chief Quidditch referee.
- Bertie Carvel as Cornelius Fudge - Following his roles in Les Misérables, Sherlock, Babylon, and The Crown, Bertie Carvel will now portray Cornelius Fudge, the highest-ranking official in the Ministry of Magic. The character is famously recognized for wearing a signature lime-green bowler hat and pinstripe suit.
- Anton Lesser as Garrick Ollivander - Anton Lesser will play Garrick Ollivander, the proprietor of Ollivanders, the most famous wand shop in Diagon Alley. He is the wandmaker who sells wands to both Harry Potter and Lord Voldemort.
- Finn Stephens as Vincent Crabbe - Draco Malfoy won't be alone in bullying the Golden Trio. He will have the help of Vincent Crabbe, now played by Finn Stephens. The bulky Slytherin student hates Muggle-borns and often serves as Malfoy's muscle.
- William Nash as Gregory Goyle - Another of Draco Malfoy's minions is Gregory Goyle. Played by William Nash, Goyle is the dull-witted enforcer and bodyguard who, alongside Crabbe, helps complete Malfoy's trio of Hogwarts bullies.
With such a star-studded cast bringing fan-favorite characters to life, HBO's Harry Potter reboot is shaping up to offer a fresh take on the beloved wizarding world while introducing its magic to a new generation of fans.
Harry Potter premieres on December 25 on HBO.