This New 'Teen Wolf' Season 4 Trailer Features New Creepy Monsters

"Teen Wolf" is coming back soon! So here's a promo!

It's a creepy one, too...the 30-second spot shows us at least a couple of new monsters, including a scary-looking guy with no mouth, meaning that the number of different types of supernatural creatures in the "Teen Wolf" world is increasing.

Before you read on, or watch the promo, be warned that there are SPOILERS for the season three finale ahead!

If you'll remember, we last left Scott (Tyler Posey) dealing with the death of his love interest Allison (Crystal Reed). The end of last season also teased a potential new threat in the returned Kate.

We can also expect to see Lydia's banshee powers being explained in a little more detail this season, and the cast has also hinted that something "really weird" is going to happen to Derek.

The fourth season of "Teen Wolf" premieres on June 23. Check out the trailer below: