It is hard to get a read on TP, just because it's his first game. I still think Mown is my first option, with TP and RM as shared second. Basically, the only person I don't suspect it's neo. If you don't think it's Mown, I'd be okay with picking TP.
My only concern with picking Mown, is that as a nonmerlin player, Mown would want us to think that he was Merlin.
I get that every not merlin player wants us to think that of them, but I think Mown did it a little too well.
At the same time, only merlin knows who the spies are, so my theory only works to a degree.
This is the post that really makes me think he isn't, and that he is trying hard to appear that he is...
Okay, so, let me spell it all out then, before we reach the point of no return.
Let's assume we play with Merlin, because squinty hinted towards it pretty heavily. As Merlin, you know who the baddies are, but the baddies can try to guess your identity for an automatic win. Why is it important to acknowledge this? Because otherwise you have one dude on your team that gives your opponent an automatic 25% win chance.
Therefore, it's important to a) look like Merlin and b) look for Merlin. He's primarily an asset for the resistance/servants/town, but only if you play with him in mind. I'll give some pointers, despite not being entirely sure how to do it myself, because Merlin is a living hell to play correctly, and I pity whoever has the responsibility.
Okay, so, first of all, it's vital that spies don't guess you outright. You know that dude that correctly guessed the 4-man team out of nowhere? Yeah, he's Merlin. Therefore, Merlin needs to not look like Merlin. Make some mistakes. Just not enough to where we lose, so have fun with that. The rest of team good guys, on the contrary, need to look like Merlin. This usually just comes down to playing like you always do, but working with a little more certainty, perhaps. Isolate the bad guys, essentially.
Secondly, look for Merlin. The assassins are looking for a free win, but you are looking for someone who is working with complete information, other roles notwithstanding. And when you identify someone who is Merlin, analyze the reason for his plays, and become Merlin instead of him. Of course, this is always dangerous, because while you a) May mistake someone, theres also the chance that b) Merlin is intentionally making questionable plays.
In other words, have fun everyone.