Name: Saïx
Nickname(optional):Organization XIII or Dark XII Nickname(optional): The Luna Diviner
Age: No definite age was given in the games, but my guess would be early 30’s
Gender: Male
Species: Nobody
Position: Evil
Organization XIII or Dark XII Position: VII.
Power(s):Element of the Moon: This element can make Saïx a very formidable opponent, as show when he draws upon it. When he does this, he temporarily gains a dramatic increase in power, becoming nigh invincible. His attacks form blue flames, creating blazing paths and walls, as well as gigantic shockwaves, which add to his already formidable strength.
Control of the Berserker Nobodies: Saïx also controls the berserker nobodies, which have fighting styles and weapons, which are very similar to that of Saïx himself.
Control of the Dusks: Like every other member of Organization XIII, Saïx has control of the dusk nobodies.
Weapon(s):
Saix wields a large claymore, white, blue and yellow in color. The weapon’s blade consists of a blue spiked circular shape at the tip of the weapon, and a very white and skinny hilt. Saïx uses this weapon to enhance his powers while in battle. It can be inferred that Saïx would be much less powerful without this weapon seeing how he only entered battle after he had summoned it, and only went berserk after using it. However this is just pure speculation.
Picture(optional): 
Appearance:As a member of Organization XIII, Saïx wears the traditional hooded black cloak worn by all Organization members as well as black gloves and boots. Saïx has long blue hair reaching down past his shoulders, though the hair on the top of his head is somewhat spiked upwards. Perhaps the most notable aspect of Saïx’s appearance is the large X shaped scar, which slices across the exact center of his face. Saïx also has menacing yellow eyes which can give someone who has never met him before the feeling that “something isn’t right about him.’
Personality:Being a nobody, Saïx has no heart and is generally cold and emotionless. Unlike most Organization members however, he makes no attempt to mimic emotions, and generally makes no attempt to fool anyone into believing that he does have a heart. To this end, Saïx can be extensively cruel to those around him. He doesn’t feel pity or remorse when doing this. He maintains his emotionless composure during even the most intense and desperate of situations. However this all changes when Saix enters battle. When he fights, Saix acts in a very beastlike manner, yelling and screaming with a huge amount of intensity when he attacks.
Original World: Unknown
Current Residing World: The World That Never Was
History/Background:Not much is known about Saïx’s life prior to becoming a nobody as he was not among the assistants of Ansem the Wise who became heartless. However it can be inferred that his heart and will were very strong because without such characteristics, Saïx would not have been able to become a nobody, much less retain a human form as one.
Saïx first appears in Kingdom Hearts II at Hollow Bastion, along with all surviving Organization members (except Axel), to taunt Sora. He remarks "You're doing well", but like the others (except Xigbar), does not directly confront Sora.
Upon Sora's second visit to Twilight Town, he Donald, and Goofy fight off several Nobodies that were attacking Seifer and his gang. After they save him, Saïx appears before them, applauding their battle skills. He warns them of a traitor in the Organization: Axel, and he says that he might be in Twilight Town somewhere. Sora insults the Organization, remarking on how they're "not a very organized Organization". Saïx is unfazed, and tells Sora to watch his back, for Axel will stop at nothing to turn him into a Heartless. Sora is not worried, leading Saïx to remark that the Organization would want nothing to happen to Sora, also saying they know how to "injure a heart". He then opens a portal behind him, and Sora thinks of jumping in after him, though Saïx overhears this and advises not to do so, lest he end up like Riku.
Sora inquires as to what he means, but Saïx immediately leaves to report to Xemnas that he succeeded in placing Sora in a state of confusion and frustration to keep him going toward their goal. But Saïx states that Axel may prove a thorn in their side, with Xemnas giving him orders to deal with Axel.
Saïx next appears in Hollow Bastion during the Heartless invasion, interrupting Axel and Sora's conversation, and forcing the traitor Nobody to flee. Saïx ensures that Axel will be rightly punished, but Sora only wants to enter the realm of darkness to rescue Kairi. Saïx asks Sora to prove just how much he cares about Kairi, and prove it he does, as he actually gets onto his knees and begs. Seeing Sora's devotion to the Princess of Heart, Saïx refuses Sora's wish, eliciting rage from the Keyblade master. Saïx only uses this to his advantage, ordering Sora to destroy more Heartless, so that the hearts held within them are released by the Keyblade. Then they may flock to Kingdom Hearts, which the Nobodies can use to truly exist once it is finished.
At that moment, Maleficent appears, declaring that Kingdom Hearts will belong to her. She summons more Heartless to attack Saïx, despite Sora's protests, but Saïx calmly summons several Nobodies to destroy the attacking Heartless. Maleficent then puts herself between Sora and the Nobodies, telling him to devise a way to vanquish the Organization. Soon, she is overwhelmed and disappears, allowing Saïx to resume having Sora release more hearts. But before that could happen, Sora, Donald, and Goofy are rescued by a portal of darkness that swallows them up (presumably Maleficent's doing).
Saïx next appears after Sora makes it to the World That Never Was, walking past a cell in which Kairi is imprisoned. When question by Kairi as to what he plans on doing with her, Saïx simply replies, “You are the fire that feeds Sora’s anger,”after which he calmly walks off. However he seemingly fails to notice that Namine attempts to rescue Kairi through use of the corridors of darkness.
Saïx is seen again when Sora makes it to the caslte. He aims to confront Kairi and Namine, but Riku (still cloaked and in the form of Xehanort's Heartless) attacks him from behind. Saïx does a back flip in the air, and lands a few feet away. Riku then slams him up against the wall. However, Saïx opens up a portal behind him and sinks away into the wall with a smirk.
Saïx again appears in the World That Never Was to Sora, who had managed to work their way through the Organization's floating fortress. The Organization member says that Kairi no longer needs him and makes a cryptic remark about a "friend from the darkness". Sora is not deterred by Saïx's manipulative comments, but Saïx is not concerned. He tells Sora that Kingdom Hearts is nearly done, pointing to a heart-shaped moon in the sky. He then summons more Heartless for Sora to destroy, but his attention is quickly turned to Maleficent, who has also infiltrated the castle along with Pete. He takes this in stride, and soon after vanishes to check on Kingdom Hearts.
Saïx appears to Xemnas, who is watching Kingdom Hearts come closer to completion. He asks the Superior if he can end the charade and Xemnas allows him to do so, as Sora's part in their plan is done with and can now be killed. Saïx smiles and remarks that he's waited so long to hear that.
Saïx awaits Sora, Donald, Goofy, Riku, and Kairi in a room with a direct view of Kingdom Hearts: Addled Impasse. He calls Sora by the name of “Roxas”, saying only he could've made it this far, though Donald vehemently states that he is Sora. Saïx does not care, and summons his weapon, simply says "Different name, same fate", and creates a powerful shockwave with sheer strength alone. The attack does no harm, but it manages to push away Kairi and Riku, separating them from the battle. He then confronts Sora, Donald, and Goofy, at last revealing the savage nature that lay hidden under his calm exterior.
However, despite Saïx's great strength and skill, he loses the battle. Defeated and mortally wounded, he slowly steps towards the moon. He sadly asks Kingdom Hearts where his heart is, before fading back into darkness.
However, soon after, Saïx as well as the other members of the Organization were revived once more. Saïx does not yet know why this happened, and is currently looking into this mystery. He continues to serve Xemnas, and assist him in his quest to gain control of Kingdom Hearts as well as becoming whole again.
Role Playing Sample: Not required but I’m going to make one anyway
Emptiness, lonliness, and emotionless. Such words could easily describe the nature of nobodies. Perhaps this was no more evident with anyone, than with the nobody, Saïx. Even so, despite his seeming lack of emotion, The Luna Diviner, had just arrived in Castle Oblivion, on the basis of desire. Despite being sent by Xemnas to the Castle in order to discover what some of the other members of the Organization had been up to, Saïx, was also somewhat curious as to what exactly Marluxia wished to accomplish within the walls of Castle Oblivion. Saïx had direct orders from Xemnas to ‘deal with’ anyone who had been discovered to be conspiring to overthrow him. He would follow these orders without hesitation, and without question.
Saïx decided that the best place to begin his investigation would be Vexen’s lab in the basement of the castle. Surely, if he were to come across any evidence of Marluxia’s schemes, it would be here, in this lab. As a dark portal opened within the lab, and Saïx stepped out, and immediately looked around the area. Much to his relief, there was no one else around. He hoped that no one would show up during his investigation, and question him as to why he was here, for he would much prefer that no one would get in his way.
Saïx then walked over to the desk, and saw a pile of strew documents, some of which had collected dust, showing their age. Despite the documents appearing old and outdated, Saïx quietly chuckled to himself, if only out of sheer amusement.
“If those fools think that they can escape punishment, simply because their supposed plan was made long ago, then they are sorely mistaken. If I find evidence of their foolish acts, I will see to it personally that they are, eliminated. Such is the price for treason.” Saïx then picked up the top document on the desk, and began to read it in the hopes that he would discover the truth about Marluxia and his motives.
Questions/Comments/Suggestions?None
