I'm not a Programmer so I don't know how things work or what to do to make it work. My thought is why not have it where Mason some how he forgets what he looks like and has to remember. Giving the one going through the story the choice in what he looks like.
I'm just that guy that sits home all day and just play games, watch memes/anime and read Visual Novels. I tend to accept changes and appreciate anything that comes my way because I know people want to create something with their heart and soul. If you fell the need to change Mason or any of the others for that matter, then I respect your judgement. We're all going through weird times so don't push your self too hard ok. (~`3`)~