Shelby Kinhalt (also known by the alias “The Heinous”) is a super criminal in the ISG universe, depicted as a torturer, serial killer, spree killer, mass murderer, and poisoner. She is portrayed as one of ISG’s most sadistic figures, recognized for her torturous methods and cruelty, although this claim is highly controversial and subjective taking into account ISG is a complex supernatural conglomerate of shadowy groups. Within ISG lore, Kinhalt is introduced as a disturbed yet calculating individual, taking inspiration from real-world figures such as Caio Henrique, Albert Fish, Richard Chase, and Jeffrey Dahmer. This composite of influences shapes her into a character whose acts combine both calculated precision and impulsive depravity.