Peregrin
Minr Mafia
I think the first possibility seems most likely and, above all, the most interesting gameplay mechanic. Perhaps there are roles on either side that, when in contact with the no-alignment player, could convert them? I am, of course, not insinuating that I am such a player.The way I see it, there are three possibilities for a no-alignment.
1) He started with no alignment, and throughout the game he would be able to be converted to another alignment.
2) He started out as some alignment, and was mid-process being converted.
3) His alignment was hidden, as Boreal suggested.
Regardless, it seems he was not innocent at this time, and whether by luck or not, Parry and Doyle seemed on the right track.
Now that we, sadly, know Parry is innocent, would you mind expanding on why you were so quick to take his side, @Arthur Doyle ? Do you maybe have some information we do not?