Home News HBO's Harry Potter Reboot: Confirmed Cast and Characters Revealed

HBO's Harry Potter Reboot: Confirmed Cast and Characters Revealed

Author : Isaac Update:Apr 19,2025

Excitement is brewing as the HBO Harry Potter TV series marks a significant milestone with the announcement of the first six cast members. While fans eagerly await the casting of iconic characters like Harry, Ron, Hermione, and Lord Voldemort, we now have the pleasure of knowing who will portray Albus Dumbledore, Minerva McGonagall, Severus Snape, and other beloved figures from the wizarding world.

Read on to discover who has been officially confirmed for this fresh adaptation of the Harry Potter saga and which major characters are yet to be cast.

Confirmed Cast:

John Lithgow as Albus Dumbledore

John Lithgow Image Credit: Warner Bros. Discovery/Jessica Howes

The role of Albus Dumbledore, the revered headmaster of Hogwarts, will be portrayed by the illustrious John Lithgow. Known for his commanding presence and versatility, Lithgow brings his six Emmy Awards and two Tony Awards to the character of one of the most powerful wizards in the Harry Potter universe. Dumbledore's profound influence on Harry and his complex history with Gellert Grindelwald will be in capable hands with Lithgow's nuanced performance. Previously, Lithgow has delighted audiences in shows and films like 3rd Rock from the Sun, Dexter, The Crown, Shrek, and Interstellar, among many others.

Who played Albus Dumbledore in the Harry Potter films? Richard Harris portrayed Dumbledore in Sorcerer's Stone and Chamber of Secrets, followed by Michael Gambon for the remainder of the series. Younger versions of the character were played by Toby Regbo and Jude Law.

Janet McTeer as Minerva McGonagall

Janet McTeer Image Credit: Warner Bros. Discovery/Andrew Crowley

The esteemed Janet McTeer will embody Professor Minerva McGonagall, the stern yet caring head of Gryffindor and deputy headmistress. A Tony Award and Golden Globe winner, McTeer is set to bring depth and authority to this pivotal character, who first appears delivering Harry to the Dursleys. Her notable previous roles include Me Before You, The Menu, Albert Nobbs, and the series Ozark.

Who played Minerva McGonagall in the Harry Potter films? The role was brilliantly played by Dame Maggie Smith in the original films and by Fiona Glascott in the Fantastic Beasts series.

Paapa Essiedu as Severus Snape

Paapa Essiedu Image Credit: Warner Bros. Discovery/Ruth Crafer

Paapa Essiedu, an Emmy-nominated actor, will take on the complex role of Severus Snape, the enigmatic Potions master and head of Slytherin. Essiedu's portrayal promises to capture Snape's intricate relationship with Harry and his past with James and Lily Potter. Essiedu's previous work includes standout performances in I May Destroy You, Black Mirror, and Gangs of London.

Who played Severus Snape in the Harry Potter films? The iconic role was played by Alan Rickman, with Alec Hopkins and Benedict Clarke portraying younger versions of Snape.

Nick Frost as Rubeus Hagrid

Nick Frost Image Credit: Warner Bros. Discovery/Lee Malone

Nick Frost will bring warmth and humor to the role of Rubeus Hagrid, the beloved half-giant and keeper of keys at Hogwarts. Frost's comedic talent, seen in films like Shaun of the Dead, Hot Fuzz, and The World's End, will undoubtedly add a delightful touch to Hagrid's character, who plays a crucial role in Harry's journey.

Who played Rubeus Hagrid in the Harry Potter films? Robbie Coltrane portrayed Hagrid, with Martin Bayfield playing a younger version of the character.

Luke Thallon as Quirinus Quirrell

Luke Thallon Image Credit: Warner Bros. Discovery/Phil Sharp

Newcomer Luke Thallon will step into the shoes of Quirinus Quirrell, the Defense Against the Dark Arts teacher in Harry's first year at Hogwarts. Thallon's previous work includes roles in The Favourite and Present Laughter.

Who played Quirinus Quirrell in the Harry Potter films? Ian Hart took on the role.

Paul Whitehouse as Argus Filch

Paul Whitehouse Image Credit: Warner Bros. Discovery/Mike Marsland

BAFTA winner Paul Whitehouse will portray Argus Filch, the Hogwarts caretaker known for his strict enforcement of school rules and his ever-present cat, Mrs. Norris. Whitehouse's diverse roles in The Fast Show, Harry & Paul, and films like The Death of Stalin showcase his ability to bring unique characters to life.

Who played Argus Filch in the Harry Potter films? David Bradley brought the character to life.

Major Characters Yet to Be Cast:

While the first six cast members have been announced, many key roles remain open, including Harry Potter, Ron Weasley, Hermione Granger, Lord Voldemort, and a host of other memorable characters such as Draco Malfoy, Sirius Black, and Remus Lupin. The anticipation continues to build as fans await further casting news.

For more insights into the magical world of Harry Potter, explore our ranking of the 25 best Harry Potter characters from the movies and books, learn about the producing duo leading the charge on HBO's reboot, and follow our guide to reading your way through the Harry Potter books.

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