Alastor, also known as The Radio Demon, is one of the main characters in the animated series 'Hazbin Hotel.' He is a powerful and enigmatic demon who quickly became one of the most feared entities in Hell. Alastor is known for his charismatic and charming demeanor, often presenting himself with a smile and a vintage radio voice. Despite his polite mannerisms, he harbors a sinister personality. In the series, he offers to help Charlie, the protagonist, in her quest to rehabilitate demons and reduce overpopulation in Hell, although his true motives remain ambiguous.