Wallter has a rounded, humanoid appearance with a smooth, egg-like head that is devoid of any distinct facial features apart from two small, dark eyes and a single crack running vertically down his forehead. He wears thick, square-framed glasses that sit firmly on his face, emphasizing his studious and intellectual demeanor. His body is covered by a large, heavy coat that appears oversized and somewhat worn, suggesting he may be introverted or protective of himself. Beneath the coat, etc.