Tom Felton may be making his Broadway debut in a role he knows inside and out, but the experience has still managed to surprise him. Revisiting Draco Malfoy"the character he originated onscreen"onstage in Harry Potter and the Cursed Child as an adult and a father in the show is "oddly emotional," Felton told Broadway.com on the red carpet ahead of a special gala performance celebrating the Year 7 Broadway ca…