The production — which is currently filming its first season — has cast Tristan Harland as Fred Weasley, Gabriel Harland as George Weasley, Ruari Spooner as Percy Weasley, and Gracie Cochrane as Ginny Weasley.

The British actor has been cast as Severus Snape, the potions professor at Hogwarts. Alan Rickman played Snape in all eight Harry Potter films. Essiedu earned several nominations for his role in the BBC’s I May Destroy You and costarred with Saoirse Ronan in The Outrun, which premiered at the 2024 Sundance Film Festival.

With HBO's Harry Potter series now in production, the casting for the rest of the Weasley siblings has been revealed.