This does sound interesting.
I was thinking of doing someone who has newly 'unlocked' his powers and is trying to figure out how he can use them to help people. So, maybe he is not part of the league form the start?

Of-coarse, if you short of Founding members, I really don't mind making someone with a bit more experience instead. (it's just a hassle pretending to know everyone when there are so many sign-ups, haha)

In any-case, I will get to making a character tonight, as I was just killing some time before work.