A lot of people have a lot to say about the role of Hermione Granger, of the famed  Harry Potter  series, now being played by black actress Noma Dumezweni in  Harry Potter and the Cursed Child.  However, none more than  Harry Potter  creator J.K. Rowling herself who has slapped down all criticism calling critics  idiots  and  a bunch of racists,  because they are.In the latest bout of criticism being thrown at Rowling, one  Potter  fan decided they would tell her how to cast her own film. You know, because they know best. This person named  Dan  took to Twitter and said: It is not about racism. It is just about consistency of the movie. How come you cannot find even a good white actress @jk_rowling it is not about racism. It is just about consistency of the movie. How come you cannot find even a good white actress  Dan (@Dan49905785) June 10, 2016First sign you re a Twitter troll? You can t even take the time to upload a selfie it would take three seconds to take and upload. However, Rowling wasn t going to let this clear racism slide, even though she was clearly being trolled.Not even giving a clear f*ck what this racist, not racist person has to say, Rowling threw the ultimate shade right back when she said: We found the best actress and she s black. Bye bye, now. We found the best actress and she's black. Bye bye, now. https://t.co/1fGmP5znHP  J.K. Rowling (@jk_rowling) June 10, 2016Good for you, Rowling. That s the only response that is needed.Featured Photo by Chip Somodevilla/Getty Images