HBO’s upcoming Harry Potter TV show won’t feature many of the original film’s cast or crew, and in a recent interview, the series’ longtime director revealed why. Why isn’t Chris Columbus working on the Harry Potter TV show?

HBO's Harry Potter will no doubt hew closely to the books, but there's a certain character that should be taken out.

The Harry Potter TV show cast includes Arabella Stanton and Lox Pratt as fellow first-years Hermione Granger and Draco Malfoy, respectively, with Janet McTeer as Professor Minerva McGonagall, Paapa Essiedu as Severus Snape, and John Lithgow as Hogwarts Headmaster Albus Dumbledore.