Animals proliferate in the genre of horror cinema. From the beasts and monsters of the classic creature features King Kong (1933) and Jaws (1975) to the devilish goat of Robert Eggers’s more recent independent feature The Witch (2015), horror is marked by its frequent reliance on animal antagonists that function as vectors of fear. Animal horror films seem to depend on a logic of species that brackets their vulnerable protagonists from the lumbering beasts, insidious parasites, and infectious creatures that threaten their safety, bodily consistency, and very humanity. Yet other ways of reading the role of animals in horror cinema might focus more closely on the indeterminate, hazy zone between human and animal that many of these films model—in addition to the ethical possibilities for imagining human-animal relationships otherwise found therein. This collection approaches this question through the lens of the creaturely, a concept we argue bears a special relationship to the shifting function of species in the horror genre. In this introduction, we develop the concept of creaturely fear as a strategy for understanding the ways in which horror models forms of shared vulnerability, exposure, and affinity between human and animal.