There are no specifics to innocents. Innocents could be just about anyone who happens to be in the wrong place at the wrong time, to just a co worker/neighbor sort.. or even someone who is crushing on a Halliwell family member. They could also be one that is being targeted by a demon. If you wanted something along the latter then PM Undisclosedtoyou and myself with the ideas you may have.
Aeri, I'm not sure but I think we had you in as one of our already held spots. I'll have to check with Miss Dis on that to be sure. But make sure you do PM both of us your character sheets to look over.