HBO's 'Harry Potter' TV show recasts all of the Hogwarts characters with new actors. See who's who in this cast guide.

HBO announced three newcomers in the roles of Harry Potter, Hermione Granger and Ron Weasley for the new "Harry Potter" TV show.

We've heard about who was playing just about everyone in the "Harry Potter" reboot - including most of the Hogwarts faculty and at least one of the show's villains - but it's been a mystery who would be committing to playing the iconic trio of Hogwarts heroes: Harry,