In his Lupus form, Gray's fur is almost completely gray, hence his human nickname, given to him by his caretakers. He is a slight wolf, not small but definitely lean and athletic, given the time he's spent in captivity with agility courses

In his Homid form, Gray dresses simply, wearing hoodies and jeans, basically anything comfortable as he is not a fan of wearing clothes, or being in Homid form in general. He is plain looking, as most Glasswalkers are, but has stark gray hair, just like his Lupus form, and bright green eyes.