Shadow Milk Cookie is a spindly, average height Cookie with powder blue dough and two differently colored eyes: one cyan right eye with a black slit pupil and black eyelashes, and one cerulean left eye with a white slit pupil and white eyelashes. His hair is a dark blue color with black under colors. Shadow Milk Cookie is a theatrical villain, changing reality into an illusory counterfeit stage to host his performances. He holds himself in cartoonishly-high regard throughout these shows.