Alastor is a character from the animated web series Hazbin Hotel, created by Vivienne Medrano. He is known as the "Radio Demon" and is characterized by his vintage radio appearance and a sinister yet charismatic personality. Alastor possesses powerful abilities, including manipulation of sound and reality, making him a formidable figure in the show's setting of Hell. In the series, Alastor is portrayed as a cunning and unpredictable character who enjoys chaos and entertainment. He often uses his powers to influence others and has a particular interest in the protagonist, Charlie, and her mission to rehabilitate demons. His unique design and voice contribute to his memorable presence in the show.