Ulquiorra is a relatively short and slender, yet fairly muscular, male Espada with a melancholic appearance, short, messy black hair, silver skin, and green eyes with slit pupils. He has teal lines that descend from his eyes, making it appear as if he is crying. His facial expression rarely changes, and he is near-constantly frowning. He also appears to be the youngest member of the Espada. He wears typical Arrancar clothes: a white jacket, black sash, and a white hakama.However, his jacket seems to have longer coattails than others. Like most other Arrancar, he possesses remnants of his former life as a Hollow in his appearance. His Hollow hole has moved; it is at the base of his throat as opposed to his chest. The remainder of his hollow mask lies on top of his head, forming a broken helmet.He is the fourth-ranked Espada, signified by the tattoo on the left side of his chest. It should also be noted that Ulquiorra's hollow hole seems to have moved since his first appearance, as it is now located somewhere near his sternum.