HBO's upcoming Harry Potter TV series has expanded its cast, with more members of the Weasley family joining Alastair Stout as Ron and Rivals star Katherine Parkinson as Molly Weasley. Check it

Twins Tristan and Gabriel Harland will take on the roles of the mischievous Fred and George Weasley, while Ruari Spooner joins the cast as rule-following older brother Percy.