Board Thread:General Discussion/@comment-3257939-20140105070225/@comment-3146930-20140717013216

But the thing is that right now the Grimm aren't the main bad guys. So far all we have really seen of them are these big dangerous animals, but for now they fill the role that is required of them (red shirts to allow our heroes to gain more skill). If the Production Diaries and the trailer are to be believed, then we will learn more about the Grimm next volume.