Board Thread:Episode Discussions/@comment-3125844-20131220190508/@comment-2255188-20140107144013

99.28.176.118 wrote: New-newby wrote: ... it seems the writers just want to introduce more and more wesen... I agree. I wonder if they think audiences will be bored if the same ones keep coming up. I have a really hard time keeping track of them all.

Well, Marie did say there are more kinds of Wesen than had even been encountered by Nick's ancestors-- to me that implies there are many yet unknown to the Grimms.