Richard is ENFP
Kahlan is INFJ
Zedd is IxTP (I dunno, think he leans more towards being a sensor most of the times, but at sometimes he is also aloof like an intuitive.)
Darken Rahl is ENTP

The Keeper is INTJ
The Creator is INFP

I really liked season 1, the pilot was freaking awesome. But I am a bit dissappointed with season 2.