New Delhi, Sept. 1 -- The Harry Potter TV reboot has locked in one of its biggest castings yet. Warwick Davis is officially reprising his role as Professor Filius Flitwick in HBO's new adaptation of J.K. Rowling's books. Sharing the news with fans on Instagram, he wrote, "I am so excited (and truly honoured) to share that I'll be returning as Professor Filius Flitwick in the upcoming Harry Potter television series. This feels like a real homecoming. Hogwarts has always held a very special place in my heart."

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As reported by the Daily Mail, HBO also revealed several new additions to the sprawling ensemble. Elijah Oshin will step in as Dean Thomas,...