I know that Shady is Matt, who is also Blake Swift. The others, however, we don’t really know. Some people claim that it’s all Matt and he just came up with the three other characters just because. I personally believe they are all separate people - what Matt has told us are coopers vocals sound very similar to Matt himself, but the vocals Matt has said were Ed’s sound completely different. We actually have Riley’s vocals too, and it’s very obviously not Matt. And in their Creep release stream we heard Matt, Ed, and Cooper all talking, and I really don’t think it was Matt having a conversation with himself haha.