Alastor is a slim, dapper sinner demon with dark skin, and usually has a broad smile full of sharp, yellow teeth. He is at around the same height as his rival, Vox, with the two standing at approximately 7 feet. He has short, chin-length curly red hair with black tips at the ends and two large, black tipped tufts deer ears extending from the top of his head, and two small black antlers protruding from the crown. Alastor's eyes have black sclera, bright-red irises and thin black pupils.