Personality trait number three is Brainy Smurf!
"Papa Smurf always says..."
I don't know how often it'll get used, but I like the idea of an older character who comes down out of the mountains because he's learned some terrible secret and must act to save the world.
It's kinda cool, but I have been experimenting with more troupe style play in the last year or so, and I don't think I would want too many Hermits in a game if I have to work out a secret for each of them.