He's Tyrion without the drinking and the hateful sibling(s) and the wit and the whoring. Basically, he's Tyrion, but less fun.
I will have to come up with an alias for him, because 'that guy who always wants some terribly hard-to-get reagent that only comes from the pollen of a particular flower that blooms on the shady side of Mount Death when the moon is in its seventh house' is a mouthful.