HBO’s Harry Potter TV series has cast its leads, Harry, Ron and Hermione.

Dominic McLaughlin will play the role of Harry Potter, Arabella Stanton is Hermione Granger and Alastair Stout is Ron Weasley. More than 30,000 actors auditioned for the lead roles since HBO launched an open casting call last fall. Filming is expected to begin this summer.

“After an extraordinary search led by casting directors Lucy Bevan and Emily Brockmann, we are delighted to announce we have found our Harry, Hermione and Ron. The talent of these three unique actors is wonderful to behold, and we cannot wait for the world to witness their magic together onscreen. We would like to thank all the tens of thousands of children who auditioned. It’s been a real pleasure to discover the plethora of young talent out there,” said showrunner Francesca Gardiner and executive producer and director Mark Mylod in a statement.

They join fellow cast members John Lithgow (“Conclave,” “The Crown”) as Albus Dumbledore, Janet McTeer (“Mission: Impossible – The Final Reckoning,” “The White Queen”) as Minerva McGonagall, Paapa Essiedu (“I May Destroy You,” “Gangs of London”) as Severus Snape, Nick Frost (“Shaun of the Dead,” “Hot Fuzz”) as Rubeus Hagrid, Luke Thallon (Tom Stoppard’s “Leopoldstadt,” Rupert Goold’s “Patriots”) as Quirinus Quirrell and Paul Whitehouse (“The Fast Show,” “Harry & Paul”) as Argus Filch.

The “Harry Potter” series is written and executive produced by Gardiner, who also serves as showrunner. Mylod will executive produce and direct multiple episodes of the series for HBO in association with Brontë Film and TV and Warner Bros. Television. The series is executive produced by author J.K. Rowling, Neil Blair, and Ruth Kenley-Letts of Brontë Film and TV, and David Heyman of Heyday Films.