Alastor

Alastor's demon form in Hazbin Hotel is a terrifying, shadowy, deer-like entity with immense power, featuring glowing red eyes with radio dial pupils, elongated antlers, sharp claws, and shadow tentacles, symbolizing his ruthless, predatory nature as the "Radio Demon," a manifestation of his past as a serial killer and hunter. He can shift into this form and others at will, using shadow energy (Ergokinesis) for attacks and conjuration, highlighting his cunning and control over Hells technology Appearance: He grows taller, with long claws, glowing red eyes (sometimes black), radio dial pupils, and large, branch-like antlers. Black blood often oozes from his mouth.