Harry Potter meets Dr. Who!! I noticed some of these on my own... They forgot about Barty Crouch Sr. who was in an episode with cybermen. Also forgotten is the kid who played Draco Malfoy ...he starred in one with Martha jones.
Alex Price and Anthony Boyle will play Draco and Scorpius Malfoy in Harry Potter and the Cursed Child Parts One and Two, and J.K. Rowling teases that Scorpius will ‘do nothing to turn girls off the Malfoy men.’