Jamie Ballard (Harry Potter), Thomas Aldridge (Ron Weasley), Michelle Gayle (Hermione Granger), Susie Trayling (Ginny Potter), James Howard (Draco Malfoy), Dominic Short (Albus Potter), Gordon Miller (u/s Scorpius Malfoy), Rachelle Diedericks (u/s Rose Granger-Weasley/Young Hermione), Madeleine Walker (Delphi Diggory), Lucy Mangan (Moaning Myrtle/Lily Potter Sr.), Sinead Sharkey (Polly Chapman), David Annen (Uncle Dursley/Severus Snape/Lord Voldemort), Lola Adaja (e/c Yann Fredericks), Kathryn Meisle (Aunt Petunia/Trolley Witch/Dolores Umbridge), Craig Connolly (Dudley Dursley/Karl Jenkins/Viktor Krum), Robert Curtis (Station Master)