I had this idea that I am going to implement in my girl's Labyrinth Lord game. The Fae in and around the Tangle Downs are a rather rough bunch, in that there are certainly more of an ill intent than of the benign sort. They're an old race, one that was here before the Eld came, but they've never really done much to enforce their will upon others, which means that they're not as instantly obvious as say the old Eld slave races, like Orcs or Hobgoblins.
Saying that though, since humans have come upon the scene relatively recently, the Fae are becoming a wee bit more militant about their elbow room. In the past there was more of a balance, but now that their land is in jeopardy, the Unseelie court and Queen Ylfrit have tipped the scales in their favor.
Anyway, I've got this idea regarding all of the Fae's allies. I was going to utilize all the standards; Things like Ents, Red Caps, Spriggans, etc. But one of the things that I really latched on to was the idea that lycanthropes would be utilized as spies. I mean c'mon, the moon, the Unseelie Court and lycanthropes? It's like kittens and a ball of yarn. They just go together.