Harry Potter HBO Cast: Every Confirmed Actor and Role

The Harry Potter HBO cast begins with three young actors taking over the roles that defined the original films. Dominic McLaughlin plays Harry Potter, Arabella Stanton plays Hermione Granger, and Alastair Stout plays Ron Weasley.

The trio matters because the series is expected to follow the characters across multiple school years. A television version depends on the chemistry of these three actors more than any single spectacle moment.

Hogwarts adults already make the Harry Potter HBO cast feel substantial. John Lithgow plays Albus Dumbledore, Janet McTeer plays Minerva McGonagall, Paapa Essiedu plays Severus Snape, Warwick Davis plays Filius Flitwick, and Sirine Saba plays Pomona Sprout.

The confirmed professor list also gives the first season room to build daily Hogwarts life, not only the mystery around the Stone.

The Harry Potter HBO cast also includes Rory Wilmot as Neville Longbottom, Lox Pratt as Draco Malfoy, Leo Earley as Seamus Finnigan, Elijah Oshin as Dean Thomas, Tristan Harland and Gabriel Harland as Fred and George Weasley, and additional Hogwarts students.

Additional confirmed roles include Daniel Rigby as Vernon Dursley, Bel Powley as Petunia Dursley, Amos Kitson as Dudley Dursley, Luke Thallon as Quirinus Quirrell, Katherine Parkinson as Molly Weasley, and Anton Lesser as Garrick Ollivander.

The Harry Potter HBO cast is a full recast, not a continuation of the Daniel Radcliffe, Emma Watson, and Rupert Grint films. That distinction matters for fans searching whether the original actors will return.

The movie cast remains central to the franchise's history, but the HBO version is building a separate ensemble for a longer television format.

Only actors listed by WBD or similarly reliable entertainment reporting should be treated as confirmed. Social posts and fan-casting threads are useful for conversation, but they should not be mixed into the confirmed Harry Potter HBO cast list.

A strong cast page should keep a visible update date and move any future rumor into a clearly labeled unconfirmed section.