So, for the most part, I'm taking a step back from this thread, because I feel the game will speak for itself or it will not. I know people are wary, and have concerns. All we can do is show those concerns to be things that do not occur on the game, over time. Only time will show the game's value and integrity, not my words here on this thread.
That said, I will answer how many FCs are played by Staff. With a caveat: One of those was auditioned for, applied, and approved before that member of Staff was on Staff. And all but, I think, a day after joining the game and meeting the Staffers for the first time. Three of the FCs are currently played by Staff. I am not keen to out whose alts are whose, because I don't feel like that's my place, but I will say that I, myself, play Fenris.
You may all proceed to tear me to pieces as you like.
However, every other FC that has been applied for, is not a member of Staff, nor necessarily someone Staff knew before they showed interest.
All of that said, certain FCs are being maintained as NPCs, because of the massive impact of the leadership role that they possess. Like Viscount Dumar, Knight Commander Meredith, and First Enchanter Orsino.