Exciting news has arrived for fans of the Harry Potter universe as HBO unveils the first six cast members for its much-anticipated TV series. While we eagerly await announcements for iconic roles such as Harry, Ron, Hermione, and Lord Voldemort, we now have confirmed actors who will bring to life characters like Albus Dumbledore, Minerva McGonagall, Severus Snape, and others.
Dive into the details below to discover who's officially on board for this fresh interpretation of the magical world of Harry Potter, and which beloved characters are still awaiting their casting.
Confirmed Cast:
John Lithgow as Albus Dumbledore
John Lithgow Image Credit: Warner Bros. Discovery/Jessica Howes
John Lithgow, a celebrated actor with six Emmys and two Tony Awards, steps into the revered role of Albus Dumbledore, the wise and powerful headmaster of Hogwarts. Dumbledore's influence extends beyond his mentorship of Harry Potter, touching on a complex past involving Gellert Grindelwald, a pivotal dark wizard in this universe. Lithgow's extensive portfolio includes roles in "3rd Rock from the Sun," "Dexter," "The Crown," "Shrek," and many more, ensuring a compelling portrayal of this legendary character.
Who played Albus Dumbledore in the Harry Potter films? Richard Harris in "Sorcerer's Stone" and "Chamber of Secrets," Michael Gambon in the subsequent films, and Toby Regbo and Jude Law as younger versions.
Janet McTeer as Minerva McGonagall
Janet McTeer Image Credit: Warner Bros. Discovery/Andrew Crowley
Tony and Golden Globe Award winner Janet McTeer will embody Professor Minerva McGonagall, the stern yet caring head of Gryffindor and deputy headmistress. McGonagall's introduction in "Harry Potter and the Sorcerer's Stone" marks her as a pivotal figure in Harry's journey. McTeer's notable roles include "Me Before You," "The Menu," and "Ozark," promising a nuanced performance of this beloved character.
Who played Minerva McGonagall in the Harry Potter films? Dame Maggie Smith in the original series and Fiona Glascott in the "Fantastic Beasts" series.
Paapa Essiedu as Severus Snape
Paapa Essiedu Image Credit: Warner Bros. Discovery/Ruth Crafer
Emmy-nominated actor Paapa Essiedu will portray Severus Snape, the enigmatic Potions professor and head of Slytherin. Snape's intricate relationship with Harry and his parents adds depth to the series. Essiedu's previous work in "I May Destroy You," "Black Mirror," and "Gangs of London" showcases his ability to handle complex characters.
Who played Severus Snape in the Harry Potter films? Alan Rickman, with Alec Hopkins and Benedict Clarke playing younger versions.
Nick Frost as Rubeus Hagrid
Nick Frost Image Credit: Warner Bros. Discovery/Lee Malone
Nick Frost, known for his comedic roles in films like "Shaun of the Dead" and "Hot Fuzz," will bring warmth and humor to the role of Rubeus Hagrid, the beloved half-giant and gamekeeper of Hogwarts. Hagrid's role in rescuing Harry from the Dursleys and guiding him through his magical education is central to the story.
Who played Rubeus Hagrid in the Harry Potter films? Robbie Coltrane, with Martin Bayfield as the young Hagrid.
Luke Thallon as Quirinus Quirrell
Luke Thallon Image Credit: Warner Bros. Discovery/Phil Sharp
Emerging actor Luke Thallon will take on the role of Quirinus Quirrell, the Defense Against the Dark Arts professor during Harry's first year at Hogwarts. Thallon's previous work includes "The Favourite" and "Present Laughter," setting the stage for his portrayal of this intriguing character.
Who played Quirinus Quirrell in the Harry Potter films? Ian Hart.
Paul Whitehouse as Argus Filch
Paul Whitehouse Image Credit: Warner Bros. Discovery/Mike Marsland
BAFTA winner Paul Whitehouse will play Argus Filch, the strict caretaker of Hogwarts, often seen with his cat, Mrs. Norris. Whitehouse's experience in "The Fast Show," "Harry & Paul," and "The Death of Stalin" will bring a unique flavor to this character.
Who played Argus Filch in the Harry Potter films? David Bradley.
Major Characters Yet to Be Cast:

The casting for several key characters remains open, including Harry Potter, Ron Weasley, Hermione Granger, Lord Voldemort, Draco Malfoy, Sirius Black, Remus Lupin, Dolores Umbridge, Alastor Moody, Ginny Weasley, Luna Lovegood, Fred and George Weasley, Arthur and Molly Weasley, James and Lily Potter, Bellatrix Lestrange, Neville Longbottom, Cedric Diggory, Dudley, Petunia, and Vernon Dursley, Lucius Malfoy, Cho Chang, Seamus Finnigan, Dean Thomas, Gilderoy Lockhart, Dobby, Nearly Headless Nick, Moaning Myrtle, Sybill Trelawney, Filius Flitwick, and many more.
For more insights, 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.