[Freddy Krueger.]

Did you notice that in "Bride of Chucky" when they're showing the evidence room, there is a chainsaw (TCM), a hockey mask (Friday the 13th) and some say they noticed Freddy's glove and Micheal's mask. In "Predator 2" when the guy is in the ship and the view goes to all the skulls, you can see the skull of a Alien form the move "Alien" (along with the other sequels of that movie).