Jamie Ballard (Harry Potter), Thomas Aldridge (Ron Weasley), Franc Ashman (Hermione Granger), Susie Trayling (Ginny Potter), James Howard (Draco Malfoy), Joe Idris-Roberts (Albus Severus Potter), Jonathan Case (Scorpius Malfoy), Helen Aluko (Rose Granger-Weasley/Young Hermione), April Hughes (u/s Delphi Diggory), James Phoon (Craig Bowker Jr.), Sinead Sharkey (u/s Moaning Myrtle/Lily Potter Sr.), Leah Haile (u/s Polly Chapman), David Annen (Uncle Dursley/Severus Snape/Lord Voldemort), Mark Theodore (Hagrid/Sorting Hat), Jordan Bamford (Yann Fredericks), Annette McLaughlin (Aunt Petunia/Trolley Witch/Dolores Umbridge), Barry McCarthy (Amos Diggory/Albus Dumbledore), Sandy McDade (Professor McGonagall), Dylan Mason (Cedric Diggory/James Potter Jr./James Potter Sr.), Craig Connolly (Dudley Dursley/Karl Jenkins/Viktor Krum), Adrian Christopher (Bane), James Given (Young Harry Potter), Isabella Manca (Lily Potter Jr.), Martin Johnston (Station Master)