Szayelaporro Grantz (ザエル・アポロ・グランツ, Zaeruaporo Gurantsu?, romanized as Szayel Aporro Granz in the Japanese media) is the Octava Espada. The aspect of death he represents is madness. The remains of his Hollow mask take the form of rectangular-framed glasses, and his Hollow hole is located in his groin. He is an intellectual and the scientist of the Espadas, thinking highly of himself and following his plans down to the finest detail. He is quite sadistic and views others as little more than research material (a characteristic he shares with Mayuri Kurotsuchi), thinking poorly of non-Hollows with the hope that Aizen would wipe them all out. Previously, he lost a position as an Espada and was forced to aid Nnoitora to take out Nelliel to regain his position. Szayelaporro has a variety of methods for analyzing an opponent's abilities, such as studying the damage done to their former opponents. Once doing so, Szayelaporro can nullify the effects of their abilities, making him virtually immune to their attacks. In addition to the immunities gained from studying his opponents, Szayelaporro has a large number of Fracciones which were originally Hollows whom he experimented on and personally modified so that he can heal his wounds by eating them.
His Zanpakutō is called Fornicarás (邪淫妃（フォルニカラス）, Forunikarasu?, Spanish for "You will fornicate," kanji translates as "Lewd Princess"); La Lujuriosa in the English dub（ラルフリオサ）Ra Ruhuriosa, Spanish for "The Lustful," and in his released state he grows two pairs of thin wings, and his lower body transforms into a flock of long tentacles. He can shoot a stream of blood-like liquid from his body and if even one droplet comes into contact with an opponent a doppelganger of them is created that Szayelaporro can control to use their abilities against them. By wrapping an opponent in his wings, Szayelaporro can create voodoo dolls of them. Each doll can open up to reveal replicas of internal organs, the destruction of which would do major debilitating damage to the victim from the inside. The last of his many abilities, known as Gabriel (受胎告知（ガブリエール）, Gaburiēru?, kanji translates as "the Annunciation"), allows him to be reborn if he is injured beyond repair by impregnating an enemy and absorbing their spirit particles, turning them into his own and killing the victim in the process while his previous body, if devoured, breaks down into cells that fuse into the eater's nervous system, allowing him to gain complete control.
Prior to his introduction, Szayelaporro sends Rudobone to bring him any defeated Arrancars in order to analyze the abilities of those who defeated them. Szayelaporro later engages Renji Abarai in battle, revealing himself as the younger brother of Ilfort Grantz whom Renji killed. Revealing that he had analyzed data on Renji's attacks through the insects he laced on Ilfort's body prior, Szayelaporro had the advantage over the Soul Reaper before unleashing his Fracción Medazeppi on him. Though Uryū Ishida arrives to aid him, Szayelaporro eventually nullifies Uryū's abilities as well from studying Cirucci's corpse. He toys with the two for a time, but when his domain is destroyed in the fight, a vexed Szalyelaporro decides to personally finish them off despite Pesche and Dondochakka's attempted surprise attack. However, Kurotsuchi arrives to help them and is able to render all of Szayelaporro's abilities useless. After he is killed by Mayuri's bankai, Szayelaporro reconstitutes himself through Nemu Kurotsuchi (whom he had taken hostage), ingesting a large dosage of one of the experimental drugs stored inside Nemu's body in the process. The drug, a "Superhuman Potion", increases his reaction time to the point where one second seems like a century to him. With his physical body unable to compensate for his over-enhanced mental state, Szayel Aporro is effectively paralyzed and left to suffer an agonizing death from his perspective by Mayuri shortly after.
Szayelaporro Granz was later seen in Hell with Aaroniero Arruruerie. They were attacked by the Unforgiven and left to rot after being easily dispatched and deemed of no use to their plan.
He is voiced by Kōsuke Toriumi in the Japanese version, Hank Matthews in the English dub of Hueco Mundo arc Pt. 1, and later voiced by Benjamin Diskin in the second part of the Hueco Mundo arc.
Read more about this topic: Grimmjow Jaggerjack, Arrancar, Espada