Warwick Davis Photo Credit: Aidan Monaghan / HBO Share on Facebook Share on X Share to Flipboard Send an Email Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Print the Article Post a Comment HBO's upcoming Harry Potter TV series has cast a familiar face to play Hogwarts Professor Filius Flitwick. Warwick Davis, who played Flitwick in the original Harry Potter film series, will reprise the role for the TV series, which will debut on HBO and HBO Max in 2027.