Bill Cipher, an Overlord in Hell, projects a chilling aura through his human form, marked by a permanent, sharp-toothed smile. Though he seems unassuming, traces of his reality-bending powers create unease among those around him. Bill has a complex friendship with Rosie, who respects his chaotic nature, and a dark camaraderie with Alastor, with whom he shares a love for chaos. Their trio influences Hell significantly. With the Hazbin Hotel staff, Bill is manipulative and playful and charming. 