Grimmjow Jaegerjaquez

 Grimmjow Jaegerjaquez sometimes romanized as Grimmjow Jeagerjaques or Grimmjow Jaegerjaques is a prominent member in the Aizen-affiliated army of Arrancar, and the sexta (6th) Espada. He is often considered to be Ichigo Kurosaki's rival in terms of personality, and is one of the series' central antagonists and Anti-Hero's.

Appearance
Grimmjow is a tall, muscular man with light blue spiky hair and light blue eyes, the latter including green lines below them, similar to the eye markings on the Panthera genus of cats.

Grimmjow's attire consists of a white hakama, a black sash and a ragged white jacket with an upturned collar. The inner lining of his jacket is black and Grimmjow wears it with the sleeves rolled up and leaving it open to expose his muscular chest. The remains of his Hollow mask consist of the right jawbone and his Hollow hole is located on his abdomen. His tattoo number 6 is located on his back, near the right side of his Hollow hole. Grimmjow also sports a large scar across his torso, gained from his first battle with Ichigo Kurosaki.

Personality
While appearing to be a laid-back individual, Grimmjow possesses a brutal, impulsive, and excessively violent personality alongside a lethally short temper. However, despite his aggression and obvious blood lust in battle, Grimmjow possesses a feral cunning and has a knack for quickly exploiting any opening his opponent reveals. In addition, he is blunt, sarcastic and quite sadistic, revealing a psychotic grin or laughing maniacally whenever he becomes excited. He is also very rude and quite disrespectful. Grimmjow uses none of the honorifics in the Japanese language, except when addressing Aizen (though he is quick to discard the formality when Aizen is not around), and refers to Orihime Inoue as woman in conversation.

Grimmjow displays little respect for authority and says whatever is on his mind, regardless of whether or not it is appropriate. This attitude leads to conflicts with Kaname Tōsen, who holds Grimmjow in low regard. He also has conflicts with Ulquiorra Cifer, the 4th Espada, when Ulquiorra interrupts his battles or otherwise clashes with Grimmjow's ideals. Grimmjow confidently believes Ulquiorra's powers to be weaker than his, a point he is eager to prove. He develops an additional grudge against Ichigo Kurosaki for wounding him during their first two battles and is eager to return the favor. He intentionally kept the large scar on his chest from their first battle as a reminder of this. Grimmjow is also infuriated by Ichigo's belief that he can defeat him regardless of how badly he is injured, which Grimmjow sees as Ichigo looking down on him.

However, he does have some form of a code of honor, as he is unwilling to fight an injured Ichigo, bringing Orihime to heal him beforehand so that their battle will be a fair one, though he also wants to defeat Ichigo when he is at full strength. He also saves Orihime from Loly Aivirrne and Menoly Mallia, who were beating her up, to repay the debt of restoring his arm, though he immediately demands another favor afterwards.

History
Before Grimmjow became an Arrancar, he was a panther-like Adjuchas-class Menos. At one point he came across the Adjuchas-class Menos group of Shawlong Kūfang, Edrad Liones, Yylfordt Granz, Nakeem Grindina, and Di Roy Rinker. Di Roy decided to eat him but before Di Roy could act, Grimmjow attacked him and ate a chunk of Di Roy's head. The group was impressed at his strength and they introduced themselves. Their leader Shawlong asked that Grimmjow join them, and the group bowed to him. Shawlong then explained that they have no intention of remaining Adjuchas or Gillians. They vowed to become Vasto Lorde, but in order to do that they needed strength that they can use to pull themselves up, and they had seen that strength in Grimmjow. Shawlong asked that Grimmjow lead them as their king.

Sometime later Shawlong told Grimmjow that the group has given up. Yylfordt explained that they have given up in their quest to evolve into Vasto Lorde. They had eaten over one thousand Hollows and haven't felt their power increase anymore. As of that day they had eaten three thousand so they know for certain to continue on would be pointless. Grimmjow told them that if they wanted to give up then it was fine but he would have nothing to do with it. Shawlong then asked Grimmjow if he would eat them, and noted that since Grimmjow had already taken a piece of Di Roy, he would never evolve into a Vasto Lorde and that in conjunction their evolution would end where it was at as well. Grimmjow called them cowards but Shawlong interrupted him and explained that they have become enlightened. It is not only to the fact that they would never become Vasto Lorde, but it was something they knew even before becoming Hollows. They knew that they would always only be Adjuchas and that Grimmjow would have been the only one to evolve beyond that stage.

Resurreccion
His release command for his Zanpakutō is "Grind" referring to grinding one's teeth. To release his Zanpakutō, he holds it up, like the start of a low sweep stroke, with his right hand. The sword glows as he puts his left hand up to it. He then rakes his hand along the length of the blade, with a swift motion, while calling out its release command, in turn releasing a torrent of spiritual power that causes tremendous gusts of wind in the immediate vicinity. Grimmjow's appearance changes drastically to something more feline and predatory. His teeth become jagged and sharp, his hands turn into black claws and his feet become black clawed paws, similar to that of a cat, along with a slender whip-like tail. His hair becomes very long and flowing, and the markings around his eyes enlarge and extend to the tips of his ears, which become cat-like. He loses his distinctive jaw mask, which is replaced by a sort of a headgear on his forehead. His clothing changes to become a form-fitting white segmented armor, similar to his original Adjuchas-Hollow form. He has blades protruding from his forearms and his calves.

Trivia

 * Grimmjow's aspect of death is Destruction.