Michael is kind of the main protagonist of the series. He's a middle aged man who has hit his low point in life. His wife left him, he has no money, etc. He ends up getting stuck in the backrooms and starts looking for a way out, while also trying to figure out his personal issues before he gets back to the real world. Make him sound tired, and give him a raspier but not to raspy voice. Even though he is tired, he still feels emotion so don't just make him emotionless. Other than that have fun with it. I want to see it become your character.