Number 9 of Organization XIII
Also known as the "Nocturnal Melody."
A blond fighting musician, Demyx uses a sitar as his weapon and controls the Dancer Nobodies. He does not enjoy fighting, but can control and combine water with his sitar for strong attacks such as making identical copies of himself out of water.
He is seen as immature compared to the other members and rather incompetent at completing missions. Initially, he is confused between Sora and Roxas, regarding the former as the latter in their conversations. Demyx first appears in the Underworld, where he plays around with Sora, not taking the young keyblade master seriously. Rather than making a repeat performance, Demyx changes his attitude when he fights Sora again at the Hollow Bastion. Unfortunately for Demyx, Sora defeats him again.
He is voiced by Kenichi Suzumura in the Japanese version of Kingdom Hearts II.
With his attacks, Demyx's abilities with his sitar far outweighs that of Dante and his Nevan weapon in Devil May Cry 3.
Number 6 of Organization XIII
Also known as the "Shadow Walking Tactician"
Like Axel, Zexion, the "Shadow Walking Tactician", is a skilled manipulator by nature, though as we discover, not skilled enough. Appearing in Chain of Memories, his talents lay outside of battle, even to the point where he does not possess a weapon; he is the only Organization member who does not fight in a gameplay battle and lacks a voice actor.
He is one of two Organization members who appear only in Riku's story. He has the ability to identify individuals by their scent, sensing when they die, and seems to be able to do so from great distances. His element is shadow.
Zexion informs Vexen and Lexaeus when he senses two new scents in the lowest basement of Castle Oblivion. One of the scents is Maleficent, and he senses that she is eliminated by the other visitor, one with a scent "exactly similar" to that of the Superior. With little information on what was happening, he and the others decide to await development. Not long after, he identifies the other guest in the castle: Riku. He observes the boy's progress through Castle Oblivion until Vexen's death, when he and Lexaeus decide that they should use Riku just as they believe Marluxia will use Sora.
After Larxene, Lexaeus and even Marluxia are killed, Zexion sees that Riku is no longer needed and attempts to destroy him himself. He leads Riku into a manifestation of Destiny Islands, Sora and Riku's home, in which Riku sees his friends disappear. Zexion appeares and wages psychological war on Riku, telling him about how he threw away his friends and his home, opened the door to darkness, and destroyed his islands. Following Riku's battle with a Darkside Heartless, Zexion uses his power to disguise himself as Sora and attacks him, telling him that he's become nothing more than a pawn of the darkness. He engulfs Riku in light, but a vision of Kairi manages to convince Riku to shed his fear of the darkness. With newfound strength, Riku follows Zexion's scent through the light and strikes him, but Zexion escapes. His escape was short-lived; Axel brings the Riku Replica down to him and convinces the replica that he can become real by gaining power that the real Riku does not have. The replica agrees, and with Axel's suggestion, strikes down Zexion without difficulty.
He was originally Ansem's youngest lab assistant and test subject, under the name of Ienzo. He was the one that convinced Ansem, with his passionate words, that they should expand the horizons of their research.
Kingdom Hearts II Alpha Ultimania, a short guidebook released to promote the game, lists him as being "fallen into ruin", though the meaning of this remains unclear.
In the Chain of Memories manga, Zexion spends most of his time fooling around with various puzzles.
Zexion, much like the other characters from Chain of Memories, are only included in one cutscene and a journal entry in Kingdom Hearts II.
Number 1 of Organization XIII
Also known as the "Seeker of Darkness"
Previously known by fans as the Enigmatic Man, Xemnas (whose name is an anagram of Ansem’s name with an 'X' added to it) is the Nobody version of Xehanort. Like his counterpart, Xemnas is collecting hearts but he intends to absorb Kingdom Hearts to become an complete and almighty, godlike being. He can manifest some sort of energy as a weapon (one of the ways he uses it is by making red "lightsabers" with it), use the element of darkness, control the Sorcerer Nobodies and move through solid objects such as humans.
He is the man whom Sora fought in the Final Mix version of the original Kingdom Hearts at Hollow Bastion; he was the first member of the Organization that could be fought. Xemnas is first seen in Kingdom Hearts II during the beginning at a beach in the World of Darkness, stating that Roxas looks like Sora and asks if he has met him. Later on, he appears in front of Sora at Hollow Bastion to taunt him, and then later at Hollow Bastion again when the enormous Heartless army attacked it. While he escapes, Sora confronts him again in the World That Never Was. He is the last member of the Organization that Sora battles in Kingdom Hearts II; it is done with the help of Riku.
He is voiced by veteran seiyu Norio Wakamoto in the Japanese version of Kingdom Hearts II.
Xemnas isn't as tough as he's let on to be, however his attack where he traps Sora is annoying.
Number 12 of Organization XIII
Also known as the "Apathetic Princess"
The only female member and the "Apathetic Princess", Larxene, conspires with Marluxia to overthrow Organization XIII by using Sora to achieve their ends. She is an arrogant sadist in nature, abrasive and uncaring for the feelings of others as she enjoyed seeing them suffer with her mindgames. Larxene uses the element of thunder to fight and wields kunai held between her fingers as her weapons. Compared to the other members, she is incredibly agile in battle.
In her first encounter with Sora, she flips Marluxia's plans into high gear when she attacks Sora and turns the luck charm into a shape of a star different from Kairi's. The act fully replaces Kairi in Sora's memories with Naminé. After the battle, Larxene mocks Sora, claiming he's trying to "play" the hero. The trust Marluxia and Larxene place in Axel proved to be a mistake when he derails their plans by setting Naminé free. Naminé reveals to Sora that the Organization has been using him since he stepped into Castle Oblivion. Larxene appears to Sora, after he fought the Riku Replica for the fourth time, to destroy them all. Again, Larxene mocks Sora for "chaining" himself to false memories of Naminé and the "promise" he made to her. The taunt proves fatal, as Sora attacks with Donald and Goofy aiding him. Sora kills Larxene, leaving only two members of the Organization in Castle Oblivion for him to deal with.
In the Chain of Memories manga, there is a library in the upper area of Castle Oblivion where Larxene spends most of her time reading a book entitled Marquis de Sade, which was named after the infamous french writer, who was the namesake of sadism.
She is voiced by Rieko Katayama in Kingdom Hearts: Chain of Memories.
Larxene, much like the other characters from Chain of Memories, are only included in one cutscene and a journal entry in Kingdom Hearts II.
Number 10 of Organization XIII
Also known as the "Man who Gambles with Fate"
Gambling permeates into all aspects of Luxord's life. He loves to gamble and sees battle as just another form of it. Like Zexion, he is more a strategist than a powerful fighter. He has neatly ordered white hair, a mustache and several earrings in the shape of the Nobody symbol. Luxord uses a deck of 52 playing cards and the element of illusion in a variety of ways, such as defense, concealment, attacking and morphing his opponents into different items. He also posseses the control of the Gambler Nobodies.
Luxord appears at Port Royal, shouting orders at Barbossa's men and investigating the Parley Process. He manages to escape before Sora and his friends can fight him. Later, at the World That Never Was, Luxord appears before Sora and traps his companions in his playing cards, leaving Sora to fight alone. In his final gamble, he raises his cards to defend himself from Sora's final strike, but it is in vain.
He is voiced by Jouji Nakata in the Japanese version of Kingdom Hearts II.
Luxord's fight is frustrating, but remember not to press the Reaction Command button too many times or you'll lose.
Number 4 of Organization XIII
Also known as the "Freezing Scholar"
Vexen is the research scientist of the group and loves to study the secrets of the heart. Vexen is ranked higher than most others in the game and has long dirty blond hair. He can control the power of ice and carries a large shield in battle that blocks any frontal attacks made against him.
In Chain of Memories, he appears to help in Marluxia's plot, but actually siding with Zexion and Lexaeus. He first battles Riku in order to create a replica of him. However, Vexen cared nothing for his "experiment" and allows Naminé manipulate the duplicate's memories against his wishes. When he encounters Sora, Vexen says that he came to collect his "debt" and provokes Sora's anger by making him believe that he controlled Riku rather than created a replica. After their battle, Vexen gives Sora the card to Twilight Town with the intention of revealing something important to the boy. Marluxia considers him a traitor as a result and sends Axel to kill him.
In Twilight Town, Vexen attempts to reveal to Sora why he feels as though he has been to Twilight Town despite being fairly certain (though memories are never quite certain in Castle Oblivion) that he had never been there. Sora and Vexen battle again after Vexen tells Sora to throw away his memories and listen to his heart. Following the fight, Vexen sees Sora as a true threat; even after being weakened by false memories, Sora remained very strong. Just as Vexen is about to reveal to Sora Marluxia's plot to use him and the existence of "the other side of Sora's heart", Vexen is struck behind by one of Axel's chakrams. Despite pleading for mercy, Axel lays the deathblow to Vexen, telling him "Now you can be nothing instead of just being nobody." His original name was Even.
In the Chain of Memories manga, there is a research lab in the lower levels of Castle Oblivion where Vexen spends most of his time.
He is voiced by Tatsuya Kando in Kingdom Hearts: Chain of Memories.
Vexen would be a fairly easy fight in Kingdom Hearts II, however he is not included in the game aside from a quick cutscene and a journal entry.
Number 5 of Organization XIII
Also known as the "Peaceful Giant"
Lexaeus is a well-built, muscular fighter in Organization XIII's ranks. Lexaeus is one of the two members of the Organization in Kingdom Hearts: Chain of Memories that appears in Riku's story only. He employs a large tomahawk and the element of earth in battle.
Lexaeus, along with Vexen and Zexion, are older members of the Organization who are less than pleased when they are forced to submit to the will of newcomers like Marluxia. When they realize the Lord of Castle Oblivion plans to overthrow the Organization by capturing and manipulating Sora, Lexaeus and Zexion decide to capture Riku and use him in the same fashion to counter Marluxia.
Lexaeus seems to keep an eye on events unfolding in the higher floors of Castle Oblivion and he is the one that informs Zexion that Axel has killed Vexen. When it became dangerously apparent that Sora might fall into Marluxia's grasp, Lexaeus confronts Riku directly, trying to convince him to open himself up to the power of the darkness in his heart. Riku refuses to give in and Lexaeus attacks him. In a very close battle, Riku manages to defeat the brute, but with his last bits of strength, Lexaeus releases all of the darkness within him in hopes of overwhelming and consuming Riku. However, King Mickey protects Riku. His original name was Elaeus.
In the Chain of Memories manga, there is a gym in the lower levels of Castle Oblivion where Lexaeus spends most of his time.
He is also voiced by Tatsuya Kando in Kingdom Hearts: Chain of Memories.
Lexaeus, much like the other characters from Chain of Memories, are only included in one cutscene and a journal entry in Kingdom Hearts II.