The famous trio has been cast – with Scottish actor Dominic McLaughlin set to star as the titular wizard.
He will be alongside Alastair Stout as Ron Weasley and Arabella Stanton as Hermione Granger.
Daniel Radcliffe, Emma Watson and Rupert Grint previously portrayed the lead characters in the film franchise.
While the TV series is welcoming many new faces, it will see Warwick Davis reprise his role as Professor Filius Flitwick.
The first instalment will be called Harry Potter And The Philosopher’s Stone, based off of JK Rowling’s first book in the popular series.
Some cast members have spoken about facing criticism for taking part in the series from those who are opposed to Rowling’s views on trans rights.
Paapa Essiedu also previously told the BBC he’s received death threats from people who think a black actor shouldn’t play Severus Snape.
“I’d be lying if I said I was a completely impenetrable robot,” he said.
However, he added that since the trailer was released last month “there’s been a flood of positivity” and “people are being incredibly supportive of the show and my involvement in it and that makes me excited for what is to come”.
The first series is set to launch Christmas 2026 on HBO Max.