Just a random note, I remember describing a northern friend in game, and the person I was describing him to said "That could be just about anyone, dark skin and lots of scars? Yeah, just about anyone up north."
Personally, I see very few Zalanthans actually resembling caucasians. Except perhaps nobles, rinthers, and gypsies. Why those three groups? ::shrug:: I imagine Northerners to be much like Africans, and Southerners to be more Arabic or Egyptian.