Quillan has sandy blond-brown hair with a slight wave to it. He is white, a little taller than average, and of average build. He feels his height is one of the few remarkable things about him, and takes some pride in it, in spite of knowing it doesn't really mean anything - height being neither an achievement nor a mark of good character. Still, it’s something that makes him stand out for the right reasons. For similar reasons, he takes care to dress well, not wanting anyone to find reason to speak ill of him. He occasionally wears glasses, predominantly for reading, though he can be somewhat careless with them, and is just as likely to be seen squinting at a book with a pinched look on his face instead.