Nick Frost pictured in JanuaryNick Frost has seemingly taken steps to shut down criticism over his upcoming involvement in the TV adaptation of the Harry Potter book series.Earlier this week, US broadcaster HBO confirmed widespread rumours that Nick will be playing Hagrid in the new show, alongside Kaos’ Janet McTeer, I May Destroy You star Paapa Essiedu, Luke Thallon and Paul Whitehouse as Minerva McGonagall, Severus Sn