My TL 0 character is beginning to take form.
He's not an outcast, rather he's solitary.
He's a valuable member of the tribe, but not of any particular clan.
He's an expert tool-maker and knows what medicine there is to know at his tech level.
I'm picturing someone who travels between the clans of a tribe and keeps them informed of the goings on outside their immediate area.
Kinda like a wandering minstrel or postman with a traveling doctor component thrown in.
He tells tales, tends wounds, delivers messages and such.
There is absolutely no historical or anthropological basis for this character at all.
TL 1 is here.
TL 2 is here.
TL 3 is here.
TL 4 is here.
TL 5 is here.
TL 6 is here.