Big no no from me. I wasn't fan of a 60 year old Alac Rickman playing Snape, but at least he delivered Snape's essence. Here you have good-looking black man who in no way makes me think of trauma-ridden, working class Snape who was bullied and beaten. I would say almost any other character's race could be switched, but not Snape. I'd rather see the Malfoys as a high society black family than him. Cast Paapa as Kingsley Shacklebolt for all I care, but leave us Snape, we want to see the flush of anger on his pallid face.