Board Thread:Speculation House/@comment-14138255-20141031002615/@comment-25555436-20141122125604

Shadow at Morning wrote: Yes. I shall only contend with the notion when it appears on-screen; before that point I shall utterly reject the notion of humanoid Grimm, and have it remain a purely conjectural and weakly-founded idea. Weakly-founded? Hell yes. But that was Word of God, so you can't reject it. If the creator says yes then it's yes, if the creator says no then it's no, and that's final.

And if you don't know what Word of God is, check TvTropes.