Harry Potter is an international sensation, with the books, movies, theme parks, and endless merchandise not only making author J.K. Rowling a billionaire but cementing the fictional teenage wizard at the center of the lives of countless children (and some adults). Its characters are adored by generations, to the point that children and adults alike still carry out online “Sorting Hat” ceremonies to determine whether they would be placed in Gryffindor, Hufflepuff, Ravenclaw, or Slytherin. Of course, most will adjust their answers to guarantee their membership to Gryffindor, the only house that anyone really cares about.

So, unsatisfied by eight movies, fans were delighted when it was announced that HBO would be releasing its own Harry Potter series and, after months of online debate and gossip, the initial cast of key characters was announced. One particular announcement raised eyebrows: The role of Severus Snape will be played by Paapa Essiedu.