Taking point from a post-9/11 spiritual warfare narrative in which models of asymmetric war are used to reconceptualize the demonic, the Introduction argues that figures of the demonic are both consolidating and deconstructive of systems of power, particularly those tied to sovereignty, identity, and empire. Weaving together two definitions of demonology, by Bruce Lincoln and Marcella Althaus-Reid, respectively, it demonstrates that demonology operates as a rubric of knowledge aimed at the classification, comprehension, and control of nonhuman and dehumanized others—the demonized—who simultaneously unsettle those rubrics of knowledge by exposing their categories as constructed and not natural. Mobilizing queer and critical race theory, it then situates the demon’s deconstructive quality in its figuration of passing and counterfeiture, which unsettle territorial boundaries, stable identities, and linear models of temporality.