Nnoitra Gilga (ノイトラ・ジルガ, Noitora Jiruga?, known as Nnoitora Gilga in the English dub) is the Quinta Espada, signified by the "5" tattooed to his tongue, and was shown to have been the Octavo Espada back when Nelliel was the Terceraover their period of time together in the Espada he had begun to develop feelings for her that he did not fully understand, he had hated the idea of a woman controlling his emotions. The aspect of death he represents is despair. He wears a large eye-patch that covers most of the left side of his face, as well as the remnants of his Hollow mask (a small set of jawbones and teeth) and his Hollow hole, both located around his left eye socket. He has the self-proclaimed strongest hierro of any Espada, both past and present, enabling him to block attacks, even from blade wielding opponents, by his skin alone. Nnoitra has stated the only time he feels truly alive is when he is gurgling on his own blood. As a result, combined with his rudeness and arrogance, he wishes to fight only the strongest and spares the weak as it is a waste of his time. He firmly believes in male chauvinism, hating the idea of a woman being stronger than or outranking a man with intent to give any woman in such a position their "deserved" inferior rank. This mindset, coupled with his inferiority complex over being pitied by an opponent, led to his attack on Nelliel, who frequently defeated him in battle and spared him as she refused to acknowledge him as a warrior, calling him a beast. Forcing her to fight him again by ripping her Fraccións' masks off, Nnoitra uses an invention of Szayelaporro's to catch Nel off guard, cracking her mask and unintentionally causing her amnesia as he tosses her into the desert so he can become even stronger.
His Zanpakutō Santa Teresa (聖哭螳螂（サンタテレサ）?, Spanish for "Mantis", kanji translates as "Sacred Crying Mantis") takes the form of a giant axe-like weapon bearing two crescent blades fused together at their backs. It is shown via several flashbacks that it used to only have one crescent. When released, Nnoitra gains two additional pairs of arms, and each of his hands gains an identical scythe-like weapon. Nnoitra's wounds heal almost instantly in his released state, and he can also regenerate severed limbs.
Though ordered by Aizen to remain on stand-by, Nnoitra, instead, decides to seek out the intruders in hopes of finding a worthy challenge. After easily defeating Chad, Nnoitra is drawn to the site of the battle between Ichigo Kurosaki and Grimmjow Jaegerjaquez. While he tortures the exhausted Ichigo, Nelliel Tu Oderschvank returns to what is revealed to be her true form and effortlessly repels Nnoitra's attacks. Though she almost defeats him yet again, she reverts to her amnesic child-state. Having won, Nnoitra knocks Nel unconscious, restrains Orihime, and has Tesla kill Ichigo off for him. However, Kenpachi Zaraki arrives and cuts down Tesla, resulting with Nnoitra fighting the Soul Reaper and the both finding great enjoyment in the fact that they can survive one another's attacks and therefore prolong the battle. After a long and destructive battle, refusing to stop fighting regardless of it turning in Kenpachi's favor, Nnoitra dies gratefully by what he believes to be a "warrior's death", losing consciousness a split second before his body hits the ground.
He is voiced by Nobutoshi Canna in the Japanese version and by Michael Sinterniklaas in the English dub.
Read more about this topic: List Of Hollows In Bleach, Arrancar, Espada