Name: Ulquiorra Schiffer
Apparent Age: unknown
Gender: Male
Birthday: Unknown
Race: Arrancar
Height: about 5' 5"
Weight: Most likely 190 lbs
Eye Color: Green
Hair Color: Black
Appearance: Ulquiorra is a male arrancar with a melancholic appearance and has green eyes with slit pupils. He has cyan lines descending from his eyes, making it appear as if he is crying, and is almost always frowning. He wears typical arrancar clothes: a white jacket, black sash, and a white hakama; however, his jacket has longer coat-tails than others. Like most other arrancar, he possesses remnants of his former life as a hollow in his appearance. In his first appearance, Ulquiorra's hollow hole is positioned at the base of his neck, but when Ichigo encounters Ulquiorra in Las Noches, it has been moved onto his chest. The remainder of his hollow mask lies on top of his head, forming a broken helmet, much like that of the example silhouette of a vasto lorde. His Espada number, four, signifying his rank amongst the Espada and level of power, is tattooed on the left side of his chest.
Personality: Ulquiorra is a very cold and callous figure. He also deems anyone he does not find of particular interest to be "trash" and therefore expendable. As noted by Grimmjow Jeagerjaques, Ulquiorra has a habit of stabbing people in the same location as his hollow hole whenever he's particularly interested in a battle. Ulquiorra is also analytical. It would appear that Ulquiorra and Grimmjow, the 6th Espada, are not on good terms.
::Character History::
Life over all: Ulquiorra first appears alongside Yammy when they arrive in Karakura Town to gain information on Ichigo Kurosaki. Ulquiorra retreats with Yammy once he finishes examining Ichigo's abilities, also taking note of Orihime Inoue's fate-manipulation powers. A month later, Ulquiorra sends a second group of arrancar (not counting Grimmjow's rogue actions) consisting of several Espada, meant to distract the shinigami while he captures Orihime. By threatening her friends' lives, he convinces her to come peacefully, allowing her to say goodbye to one person beforehand.
Upon returning to Las Noches, Ulquiorra claims that he has trapped Orihime in a psychological prison from which her loyalty to Aizen is guaranteed, though this proves to be false when Orihime resolves to ruin Aizen's plans. After Chad was cut down by Nnoitora, Ulquiorra appears in Orihime's cell, trying to make her eat her meal. Orihime instead dwells over Chad's defeat. Frustrated, Ulquiorra tells her that her comrades will eventually all be defeated by the Espada, and that she should not find it surprising that one went down already. Orihime responds by slapping him. Ulquiorra then takes his leave. He reappears later to fight Ichigo, which ends in a sound victory for Ulquiorra. He leaves Ichigo alive but badly injured, suggesting to him that he should retreat if able. After discovering that Grimmjow has freed Orihime, Ulquiorra tracks them down and engages in a short battle with Grimmjow, ending with Grimmjow using a portable negación field to temporarily trap Ulquiorra.
Powers: Ulquiorrra is the Cuatro Espada in Aizen's army, meaning Ulquiorra's abilities are fourth amongst all of the arrancar under Aizen's command. He can use both cero and bala blasts, and can deflect attacks of similar power barehanded. He is able fight Ichigo in his vizard form without unsheating his sword and did not sustain any injury of any kind. He can also open garganta to move to and from Hueco Mundo.
Ulquiorra has the unusual ability to replay events he has seen to others by removing and crushing his left eye, which then turns into dust and flows around those Ulquiorra intends to use it on. The dust shows images of what Ulquiorra has seen during his missions. This eye apparently can regenerate, as Ulquiorra is seen with two eyes in his next appearance, and Yammy comments on it to that effect.
Zanpakutō: The name and released state of Ulquiorra's zanpakutō have not been revealed, as he has never been shown using it, instead relying on his bare hands and iron skin. The handle is green and the guard has two curved extensions from its shorter sides, giving it an eye-like appearance.