Jamie Ballard (Harry Potter), Thomas Aldridge (Ron Weasley), Michelle Gayle (Hermione Granger), James Howard (Draco Malfoy), Dominic Short (Albus Severus Potter), Jonathan Case (Scorpius Malfoy), Rachelle Diedericks (u/s Rose Granger-Weasley/Young Hermione), Lucy Mangan (u/s Delphi Diggory), Lola Adaja (u/s Moaning Myrtle/Lily Potter Sr.), Sinead Sharkey (Polly Chapman), David Annen (Uncle Dursley/Severus Snape/Lord Voldemort), David Mara (u/s Hagrid/Sorting Hat), Luke Sumner (Yann Fredericks), Kathryn Meisle (Aunt Petunia/Trolley Witch/Dolores Umbridge), Barry McCarthy (Amos Diggory/Albus Dumbledore), Ryan J Mackay (Cedric Diggory/James Potter Jr./James Potter Sr.), Craig Connolly (Dudley Dursley/Karl Jenkins/Viktor Krum), Marcus McKinlay (Young Harry Potter), Toula Bet Brockett (Lily Potter Jr.)