Harry Potter TV series officially announces main cast

Harry Potter TV has cast its classic golden trio. Here are the main cast details for the Harry Potter TV series .

" Harry Potter ," the beloved fantasy series by author J.K. Rowling that has been adapted into a blockbuster film series, is coming to HBO as a new television series. Each of the seven books in the series, "Sorcerer's Stone," "Chamber of Secrets," "Prisoner of Azkaban," "Goblet of Fire," "Order of the Phoenix," "Half-Blood Prince" and "Deathly Hallows ," will be adapted into a television season.

In May 2025, the three main roles in the Harry Potter TV series were finally announced: Dominic McLaughlin will play Harry Potter, Arabella Stanton will play Hermione Granger, and Alastair Stout will play Ron Weasley. All three are newcomers to the cast with little previous acting experience. McLaughlin had acted in "Grow," a Sky comedy with Nick Frost and Golda Rosheuvel, Stanton played Matilda in the West End musical of the same name, and Stout had no previous acting experience.

HBO auditioned more than 32,000 children for Daniel Radcliffe's famous lead role in Harry Potter. Executive producer Mark Mylod said the casting team reviewed between 500 and 1,000 audition tapes a day.

" After an extraordinary search led by casting directors Lucy Bevan and Emily Brockmann, we are delighted to announce that we have found Harry, Hermione and Ron. The talents of these three unique actors are incredible, and we can't wait for the world to witness their magic on screen. We would like to thank the tens of thousands of children who auditioned. It's a real joy to discover the wealth of young talent out there, " showrunner Francesca Gardiner and executive producer/director Mark Mylod said in a statement announcing the three cast members.

Other Harry Potter TV cast members include "Conclave" star John Lithgow as Albus Dumbledore, "I May Destroy You" breakout star Paapa Essiedu as Severus Snape, "Tumbleweeds" Oscar nominee Janet McTeer as Professor McGonagall and "Shaun of the Dead" comedian Nick Frost as Hagrid. Meanwhile, Paul Whitehouse (Tom Stoppard on "Leopoldstadt," Rupert Goold on "Patriots") and Luke Thallon ("The Fast Show," "Harry & Paul") reprise their roles as Hogwarts caretaker Argus Filch and Defense Against the Dark Arts professor Quirinus Quirrell, respectively.

The Harry Potter series was written and executive produced by Gardiner. Mylod will executive produce and direct multiple Harry Potter films for HBO in association with Brontë Film and TV and Warner Bros. Television. The series is executive produced by author J.K. Rowling, Neil Blair and Ruth Kenley-Letts of Brontë Film and TV, and David Heyman of Heyday Films.

Here's more details about the actors who played the golden trio in the Harry Potter TV series .

Harry Potter TV Cast

Harry Potter (Dominic McLaughlin)

Young actor Dominic McLaughlin will play Harry Potter — the role that catapulted Daniel Radcliffe to global fame. McLaughlin previously starred in "Grow," an upcoming comedy on Sky that stars Nick Frost — who, incidentally, plays Hagrid in "Harry Potter" — and Golda Rosheuvel.

Ron Weasley (Alastair Stout)

Alastair Stout will play the red-haired wizard Ron Weasley and Harry's best friend at Hogwarts. "Harry Potter" will be a big breakthrough for Stout, who has no previous acting credits. With his red hair, Stout looks almost identical to a young Rupert Grint, who played Ron in the original films.

Hermione Granger (Arabella Stanton)

Arabella Stanton is the new Hermione Granger, one of the smartest students at Hogwarts and best friends with Harry & Ron. She previously played Matilda in "Matilda: The Musical" on the West End. Stanton takes over the role from Emma Watson, who starred in "Beauty and the Beast" and "Little Women."

Other important supporting actors in Harry Potter TV

Albus Dumbledore (John Lithgow)

Headmaster of Hogwarts School of Witchcraft and Wizardry, Dumbledore is a powerful wizard, the most senior professor at Hogwarts, and Harry's early mentor. Prior to the events of "The Sorcerer's Stone", Dumbledore (with the help of Minerva McGonagall) took young Harry to live with the Dursleys at Privet Drive.

Severus Snape (Paapa Essiedu)

The Potions Professor at Hogwarts, Severus Snape is the head of Slytherin House and the first enemy of Harry and his friends. Snape is cold towards his students (especially the Gryffindors) and many other professors. Harry soon begins to suspect that Snape may have connections to the Dark Lord Voldemort.

Minerva McGonagall (Janet McTeer)

Head of Gryffindor House at Hogwarts, Minerva McGonagall is the Transfiguration professor and first ally of Harry, Ron and Hermione. Unbeknownst to Harry, McGonagall helped Dumbledore send him to live with the Dursleys as a child. She is also an animagus and can transform into a house cat at will.

Nick Frost (Rubeus Hagrid)

Hagrid is the gamekeeper at Hogwarts. He was the first person to tell young Harry that he was a wizard and remained close friends with him, as well as Ron and Hermione, throughout their time at school. Hagrid, despite his sometimes clumsy nature, has a keen interest in living creatures. He looks after everything from dragons to Hippogriffs.

Kareem Winters

Update 30 May 2025