Originally Posted by WilliamR
Sure he is the top dog, etc. etc. but there has been nothing in the show that stated he had to also be a supernatural creature, he can still be human and be top dog. We don't know anything of the behind the scenes of how it is all setup to know more. Maybe a human is in control of all this as the top dog and the supernatural creatures are fed up with it.
This from the Grimm site...
Sasha Roiz stars in NBC's new drama series "Grimm" as Captain Renard, Nick's politically adept superior officer and a descendant of a powerful line of Grimm royalty.
I think they meant wessen royalty.
There was also a primer on Grimm beasties on the site that I couldn't find now, but read before that described this nobility slightly and stated that hexenbeasts are their main servants. He's supernatural, but we don't know what he looks like (if different), his goals regarding Nick...just that he's pretty slick and might be protecting him or setting him up later.
I did find this...
A Hexenbiest is a witch-like creature that resembles a demon or goblin. They work at the command of royalty and are extremely loyal creatures. Untransformed, they can be identified by a dark birthmark on the underside of their tongues.
Since there's not much written about this royalty, I'm sure the showrunners are setting up a big reveal later. Whether the guy looks human or turns into Count Dracula (my suspicion), I highly doubt he's human. Then again, as stated by yourself and myself, we don't know much other than he took down a Reaper pretty easily.