I was going to base it off my archetype that I play in Fallout. I go for a mainly melee based character with high sneak and lock pick. Basically roguish with good bargaining and repair skills. 

I have a good feel of the personality I want as well. Mischievous of course since they would have had to learn lock picking by trying to get into places they weren't supposed to, just for the thrill of being able to get in and out detected. Inherently good but in the end more of a follower than a leader.