Alastor's behavior, and even his voice are similar to an old-fashioned radio announcer. He has been noted to be quite sadistic, even cannibalistic, devouring lesser demons or those that have angered him.
He has beige colored skin, and usually having a broad smile full of sharp, yellow teeth. He’s 7ft tall and a deer demon. His eyes have dark-red sclerae, bright-red irises and thin black pupils. Alastor wears a red pinstripe coat, underneath he wears a bright red top. His hair is red and black.