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

The HBO Harry Potter TV series has reached a significant milestone with the announcement of the first six cast members. While fans eagerly await news on who will portray iconic characters like Harry Potter, Ron Weasley, Hermione Granger, and Lord Voldemort, we now have exciting updates on the actors set to bring Albus Dumbledore, Minerva McGonagall, Severus Snape, and other beloved characters to life. Dive in to discover who has been officially cast and which major roles are yet to be filled.

Confirmed Cast:

John Lithgow as Albus Dumbledore

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

The esteemed John Lithgow, a six-time Emmy and two-time Tony Award winner, will step into the role of Albus Dumbledore, the revered headmaster of Hogwarts. Known as one of the most powerful wizards, Dumbledore plays a pivotal role in Harry Potter's journey and has a complex history with Gellert Grindelwald. Lithgow's extensive career includes standout performances in "3rd Rock From the Sun," "Dexter," "The Crown," "Shrek," and many more.

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

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 head of Gryffindor and deputy headmistress of Hogwarts. McGonagall's introduction in "Harry Potter and the Sorcerer's Stone" marks a memorable moment as she aids Dumbledore in delivering Harry to the Dursleys. McTeer's notable roles include "Me Before You," "The Menu," "Albert Nobbs," and "Ozark."

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 take on the complex role of Severus Snape, the Potions professor and head of Slytherin. Snape's intricate relationship with Harry Potter and his parents adds depth to the series. Essiedu's previous work includes "I May Destroy You," "The Outrun," and "Black Mirror."

Who played Severus Snape in the Harry Potter films? Alan Rickman, with Alec Hopkins and Benedict Clarke portraying younger versions.

Nick Frost as Rubeus Hagrid

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

Nick Frost, known for his comedic roles, will portray Rubeus Hagrid, the beloved half-giant and groundskeeper of Hogwarts who plays a crucial role in Harry's journey. Frost's notable films include "Shaun of the Dead," "The World's End," and "Hot Fuzz."

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 play Quirinus Quirrell, the Defense Against the Dark Arts teacher in Harry's first year at Hogwarts. Thallon has 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 winner Paul Whitehouse will take on the role of Argus Filch, Hogwarts' caretaker known for his stern demeanor and his cat, Mrs. Norris. Whitehouse's notable works include "The Fast Show," "Harry & Paul," and "The Death of Stalin."

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, check out our ranking of the 25 best Harry Potter characters from the movies and books, the producing duo that will be leading the charge on HBO's reboot, and our guide to reading your way through the Harry Potter books.