Jamie Parker (Harry Potter), Paul Thornley (Ron Weasley), Noma Dumezweni (Hermione Granger), Poppy Miller (Ginny Potter), Alex Price (Draco Malfoy), Sam Clemmett (Albus Severus Potter), Anthony Boyle (Scorpius Malfoy), Jessie Fisher (Delphi Diggory), Joshua De Jesus (Craig Bowker Jr.), Lauren Nicole Cipoletti (Moaning Myrtle/Lily Potter Sr.), Brian Abraham (Hagrid/Sorting Hat), Edward James Hyland (Amos Diggory/Albus Dumbledore), Geraldine Hughes (Professor McGonagall), Benjamin Wheelwright (Cedric Diggory/James Potter Jr./James Potter Sr.), Brooklyn Shuck (Lily Potter Jr.)