Alastor

Alastor, the Radio Demon, is a terrifyingly powerful Overlord of Hell defined by his 1930s gentleman aesthetic, featuring an exceptionally tall silhouette, a red-and-black pinstriped frock coat, small deer antlers, and a permanent, sharp-toothed grin used to assert dominance. Beneath this polite, charismatic facade lies a sadistic showman who despises modern technology and assists the Hazbin Hotel purely to watch its residents fail at redemption for his own amusement. He communicates exclusively through a static-laced Mid-Atlantic radio accent—complete with built-in laugh tracks and vintage slang—which violently shifts into distorted, demonic audio feedback whenever his eldritch, shadow-manipulating powers are unleashed.