James Snyder (Harry Potter), Matt Mueller (Ron Weasley), Jenny Jules (Hermione Granger), Diane Davis (Ginny Potter), Jonno Roberts (Draco Malfoy), Nicholas Podany (Albus Potter), Bubba Weiler (Scorpius Malfoy), Nadia Brown (Rose Granger-Weasley/Young Hermione), Sara Farb (Delphi Diggory), Kevin Matthew Reyes (Craig Bowker Jr.), Lauren Nicole Cipoletti (Moaning Myrtle/Lily Potter Sr.), Katherine Reis (Polly Chapman), Stephen Spinella (Uncle Dursley/Severus Snape/Lord Voldemort), Brian Thomas Abraham (Hagrid/Sorting Hat), Jonathan Gordon (Yann Fredericks), Fiona Reid (Aunt Petunia/Trolley Witch/Dolores Umbridge), Edward James Hyland (Amos Diggory/Albus Dumbledore), Karen Janes Woditsch (Minerva McGonagall), Will Carlyon (Cedric Diggory/James Potter Jr./James Potter Sr.), Joey Labrasca (Dudley Dursley/Karl Jenkins/Viktor Krum), James Brown III (Bane), Zell Steele Morrow (Young Harry Potter), Grace DeAmicis (Lily Potter Jr.), Patrick du Laney (Station Master)