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

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

Author : Hannah May 01,2025

The HBO Harry Potter TV series has reached a significant milestone with the announcement of the first six cast members. While we eagerly await news on who will portray iconic characters like Harry, Ron, Hermione, and Lord Voldemort, we now have the exciting reveal of actors stepping into the roles of Albus Dumbledore, Minerva McGonagall, Severus Snape, and more. Let's delve into the confirmed cast members and explore which major characters are yet to be cast.

Confirmed Cast:

John Lithgow as Albus Dumbledore

John Lithgow Image Credit: Warner Bros. Discovery/Jessica Howes John Lithgow, a six-time Emmy and two-time Tony Award winner, has been cast as Albus Dumbledore, the revered headmaster of Hogwarts. Known for his wisdom and power, Dumbledore plays a pivotal role as Harry Potter's mentor and has a complex past intertwined with Gellert Grindelwald. Lithgow's extensive career includes standout performances in "3rd Rock From the Sun," "Dexter," "The Crown," "Shrek," "The World According to Garp," "Perry Mason," "The Old Man," "Footloose," "Terms of Endearment," and "Interstellar."

Who played Albus Dumbledore in the Harry Potter films? Richard Harris in "Sorcerer's Stone" and "Chamber of Secrets," Michael Gambon in the rest of the original series, and Toby Regbo and Jude Law in younger roles.

Janet McTeer as Minerva McGonagall

Janet McTeer Image Credit: Warner Bros. Discovery/Andrew Crowley Janet McTeer, acclaimed for her Tony and Golden Globe Awards, will embody Professor Minerva McGonagall. As the head of Gryffindor and deputy headmistress, McGonagall is a crucial figure at Hogwarts, first introduced in "Harry Potter and the Sorcerer's Stone." McTeer's notable works include "Me Before You," "The Menu," "Albert Nobbs," "Tumbleweeds," "The Old Man," "Ozark," and "Sorry for Your Loss."

Who played Minerva McGonagall in the Harry Potter films? Dame Maggie Smith in the original films 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, James and Lily, adds depth to his character. Essiedu's previous roles include "I May Destroy You," "The Outrun," "Black Mirror," "Men," "The Lazarus Project," and "Gangs of London."

Who played Severus Snape in the Harry Potter films? Alan Rickman, with Alec Hopkins as the teenage Snape and Benedict Clarke as the child version.

Nick Frost as Rubeus Hagrid

Nick Frost Image Credit: Warner Bros. Discovery/Lee Malone Nick Frost will bring to life Rubeus Hagrid, the beloved half-giant who serves as the gamekeeper and groundskeeper at Hogwarts. Hagrid's role in rescuing Harry from the Dursleys and guiding him to Hogwarts is pivotal. Frost is celebrated for his comedic roles in "Shaun of the Dead," "Skeleton Crew," "The World's End," "Hot Fuzz," and "Attack the Block."

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 Luke Thallon steps into the role of Quirinus Quirrell, the Defense Against the Dark Arts professor during Harry's first year at Hogwarts. Thallon, a newcomer to acting, has previously appeared in "The Favourite" and "Present Laughter."

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-winning actor Paul Whitehouse is set to portray Argus Filch, the caretaker of Hogwarts, often seen with his cat, Mrs. Norris. Whitehouse's notable works include "The Fast Show," "Harry & Paul," "The Death of Stalin," "Alice Through the Looking Glass," "Corpse Bride," and "Alice in Wonderland."

Who played Argus Filch in the Harry Potter films? David Bradley.

Major Characters Yet to Be Cast:

  • Harry Potter
  • Ron Weasley
  • Hermione Granger
  • Lord Voldemort
  • Draco Malfoy
  • Sirius Black
  • Remus Lupin
  • Dolores Umbridge
  • Alastor Moody
  • Ginny Weasley
  • Luna Lovegood
  • Fred Weasley
  • George Weasley
  • Arthur Weasley
  • Molly Weasley
  • James Potter
  • Lily Potter
  • Bellatrix Lestrange
  • Neville Longbottom
  • Cedric Diggory
  • Dudley Dursley
  • Petunia Dursley
  • 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 discover our guide to reading your way through the Harry Potter books.