Omg!!! (<-- I apologize for using that)
I want to be two people!!
It could maybe work, if you gave everyone "two lives." Their first life, they're one role, another in their next... Maybe start out with two wolves and two gifteds of some sort, then add more as people, though it won't necessarily be adding, because the first lives wolves and gifteds could naturally be killed...
Yes, I'll stop now.....