Carmilla is a tall and slender, light gray-skinned demon. She sports white ankle-length hair that has been formed in the shape of large horns by thin ribbons, with black streaks. She has a darker-colored area that appears similar to a mask on her face, and her slanted-eyes have white irises and red sclera. The rest of her arms and hands are colored white, with her hands being rather large in proportion to her body with black nails protruding from them.