Are you Domino, the Mayor of Midgar who has in practice been reduced to a librarian?
Someone's already asked that, the answer was "no".
Where was that? Cloche asked about the Shinra manager on the train, but that's not the same person. I think you were being mischievous and trying to get another question in, Sam
Anyway, the answer is No (20) - I'm not Domino.
Flintlock... Art thou Bugenhagen?
No (21!)
I can now reveal myself to be...
There were a couple of questions that were difficult to answer. For example, Dio doesn't hold any real power, but he is the owner of the Gold Saucer, which I considered to be a position of authority. He's not really on the side of the bad guys, but it could be argued that he is working for Shinra. And I couldn't say anything about his shirt collar because he doesn't wear a shirt
Looking back through my answers, I can't find anything that would rule out Domino, so that was a good guess. Shademp, you can take the next round if you want.
The rest of you need to ask more wide-ranging questions, particularly at the start. If each question is able to eliminate half the possible candidates, you can narrow over a million candidates (2^20) down to one with the 20 available questions. You're unlikely to be right with a guess very early in the game, and when you get it wrong, you've used up a question to eliminate just one candidate. But it's only the first round, we'll all get better at it