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

It’s almost time for a whole new generation of wizards and witches to be welcomed into Hogwarts. “Harry Potter,” the beloved fantasy book series from author J.K. Rowling that was turned into ...

John Lithgow was cast as school headmaster Albus Dumbledore, the famed wizard and Harry’s mentor. Richard Harris originally played the character in the Potter film franchise.