The Kulless were a sapient species of bipeds. Their torso was muscular and barrel-shaped, with long arms that terminated in tetradactyl hands. Their legs were shorter, with three anterior toes and one posterior toe. The Kulless had a thick tail that reached to the ground. As exemplified by Shrivel Braittrand, they had brown pigmentation and their skin was dotted with some lumps. The Kulless face was quite flat with deep-set eyes, black in coloration, and a prominent brow. They had a stubby nose, and white teeth behind pale lips.