Jim Fish (u/s Harry Potter), Thomas Aldridge (Ron Weasley), Michelle Gayle (Hermione Granger), Susie Trayling (Ginny Potter), James Howard (Draco Malfoy), Dominic Short (Albus Severus Potter), Luke Sumner (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), Gordon Miller (u/s Yann Fredericks), Kathryn Meisle (Aunt Petunia/Trolley Witch/Dolores Umbridge), Craig Connolly (Dudley Dursley/Karl Jenkins/Viktor Krum), Callum Hudson (Young Harry Potter), Toula Bet Brockett (Lily Potter Jr.), David Mara (Station Master)