Alastor - Hasbin Hotel - Fanart - 16cm model

https://hazbinhotel.fandom.com/wiki/Alastor

Alastor is the infamous entity known as "The Radio Demon" and is one of the many powerful Overlords of Hell. He has offered to assist Charlie in her endeavours, albeit, for his own amusement. He is one of the main characters of Hazbin Hotel.