List of Kingdom Hearts characters

A list of characters who appear in the Kingdom Hearts series.

Eraqus
Master Eraqus is a Keyblade Master and the master of Terra and Aqua, and he also serves as the second master of Ventus. At the beginning of Kingdom Hearts Birth by Sleep, Eraqus prepares to hold the Mark of Mastery exam. Master Xehanort arrives, along with Ventus, at the Land of Departure and the boy watches Terra and Aqua preparing for their Exams. Eraqus begins the exam with Aqua passing but Terra failing. Eraqus believes that Terra is not ready, because he lacks control over his own darkness. Eraqus, however, is unaware that Master Xehanort had interfered, using his dark powers to affect the course of the Exam itself.

After Master Xehanort goes missing, Eraqus sends Terra and Aqua to find him, trusting Aqua with responsibility over Terra due to his fear of the man's inner darkness. However, after Terra departs, Ventus leaves as well, so Eraqus instructs Aqua to bring Ventus back. When Terra returns to the Land of Departure, Eraqus attempts to vanquish Ventus to prevent Xehanort from using the boy in his plans. Terra attempts to stop the execution while Eraqus senses that Terra has descended into darkness, causing him sadness by the fact that he must eliminate two of his apprentices. As Eraqus charges forward, Ventus is thrown into a portal to another world by Terra while the latter battles Eraqus. Terra wins the battle but spares Eraqus, who expresses remorse for realizing he had turned his Keyblade on his own students. But as Eraqus dawns upon this, Master Xehanort himself appears and finishes Eraqus off, causing Eraqus to fade out of existence. Despite his demise, Eraqus' heart found residence within Terra to help him resist Xehanort after Terra would become the villainous Keyblade master's vessel.

He is voiced by Makio Inoue in the Japanese version and by Mark Hamill in the English version.

Ansem the Wise
Ansem the Wise is the former sage-king of Radiant Garden. Many years before the game's current timeline, Ansem the Wise became worried that the darkness of people's hearts would one day swallow his beloved home. In order to understand the heart and counter darkness, Ansem began conducting tests on Xehanort's heart, and eventually constructed a large laboratory in the basement of his castle. However, Ansem's six apprentices used the laboratory in order to conduct inhumane experiments on the human heart. Ansem immediately ordered his apprentices to cease their experiments and sealed the chamber. Ansem's friend, Mickey Mouse eventually advised Ansem the Wise to review the research data. After reading the truth, Ansem began to see that the damage he had done had become irreversible. Eventually, the six apprentices dabbled too deep into the darkness and were consumed by it, and plunged Ansem into the Realm of Nothingness.

Within the realm, Ansem discarded his old name, and became DiZ ("Darkness in Zero"). Eventually, he found a way to escape when he gained the power of darkness, though he did not intend to become consumed by it. DiZ found residence in an abandoned mansion in Twilight Town, beginning to research the Nobodies and the Heartless. He then infiltrated Organization XIII's second base, Castle Oblivion, and encounters Naminé. DiZ magically speaks to Riku, and guides him through the castle. After Riku escapes the castle, DiZ reveals himself to Riku and King Mickey, and provides them with the black coats of the Organization, as well as a card that will draw out "Ansem". Afterwards, DiZ continues his plan with Naminé to restore Sora's memories, after they were broken apart in Castle oblivion. Once nearly a year has past, Sora's memory has stopped, and with the memory's carrier eliminated by Roxas, DiZ sends Riku to get Roxas. Riku has no choice but to take on the form of Ansem, Seeker of Darkness in order to defeat Roxas. Still, DiZ continues with the plan, placing Roxas into a digital facsimile of Twilight Town where he can live out his days under observation, until it is time for him to reunite with Sora.

Roxas fuses with Sora eventually, so Naminé, Diz, and Riku go their separate paths. At this point in the story, DiZ has clearly established prejudices against Nobodies. DiZ eventually infiltrates Organization XIII's home world, The World That Never Was, to stop Xemnas by using his machine to digitally encode the artificial Kingdom Hearts. However, he is attacked by Nobodies, but is saved by Mickey. Seeing no more reason to hide his identity, DiZ unmasks himself as Ansem. King Mickey asks Ansem why he didn't reveal earlier, but Ansem explains that defeating Organization XIII was his priority because Xemnas is the Nobody of Xehanort. Understanding his task, Mickey accompanies Ansem as he begins encoding Kingdom Hearts. Unfortunately, the power of Kingdom Hearts is too great to be controlled, causing the machine to overload. Sora, Riku, Kairi, Donald, and Goofy, as well as Xemnas, arrive at the duo's location. Ansem, admitting his errors, states that both he and his former apprentices know as little about the heart as they did ten years ago. As the machine then goes critical, Ansem gives King Mickey and Riku his final words, tells Sora that the rest is up to him, and apologizes to Roxas for all that he had put him through. Though Sora and company want to save him, the machine then explodes, apparently killing Ansem. In reality, Ansem survives the explosion, but is transported to the Realm of Darkness. Shortly afterward, Ansem is found by Aqua, and explains to her his past deeds, and mentions that a boy with a Keyblade will save the worlds from being engulfed by darkness, as Sora will open the door and help those who are "crippled".

He is voiced by Genzō Wakayama in the Japanese version and by Christopher Lee (Kingdom Hearts II) and Corey Burton in the English version.

Terra-Xehanort
Terra-Xehanort is Master Xehanort's heart possessing Terra's body. After obtaining Terra's body, Terra-Xehanort found resistance from the discarded armor of the warrior, now known as the Lingering Will, which was trying to prevent him from escaping with its body. Although he lost, Terra-Xehanort got caught in an explosion caused by the disassembly of the X-blade and was whisked away into the Radiant Garden. He encounters Aqua, whom he then battles, but nearly falls into darkness. In an attempt to save her friend, Aqua sacrifices herself to save him. Back in Radiant Garden, an amnesiac Terra-Xehanort is found by Ansem the Wise, and becomes apprentice to Ansem, adopting the name Xehanort.

Eventually, he would manipulate the other apprentices into conducting experiments on testing the heart, at the cost of innocent lives lost to create Emblem Heartless. Although Ansem halted the experiments, Xehanort banished him to the Realm of Darkness, and decided to use the Heartless' instincts to make his own plans to gain ultimate power, control, and knowledge by gaining Kingdom Hearts. After using his Keyblade to create Heartless and Nobodies from the apprentices, Xehanort gave into darkness and created the Heartless that called himself "Ansem" and the Nobody known as Xemnas. With both components having the memories and personality traits of their original self, "Ansem" and Xemnas act on the goal to obtain Kingdom Hearts in their own way.

He is voiced by Akio Otsuka in the Japanese version and by Richard Epcar in the English version.

Hayner
Hayner is a boy that appears in Kingdom Hearts II. A resident of Twilight Town, Hayner is a friend of Pence and Olette (and Roxas, or at least the virtual version of himself). He also appears in Kingdom Hearts 358/2 Days alongside Pence and Olette.

In DiZ's digital Twilight Town, Hayner was Roxas's best friend. In the Struggle tournament, he faces Roxas in the first round and loses. But when Seifer withdraws from the tournament, Hayner is moved up to third place. In the real Twilight Town, Hayner and his friends seem to recognize Sora slightly, because they had met Roxas in 358/2 Days. Initially, he is somewhat hostile towards Sora, but he warms up to them and goes to see the trio off at the train station. When Sora returns, Hayner, Pence and Olette attempt to get into the Old Mansion, and helped Sora find the virtual Twilight Town.

He is voiced by Kazunori Sasaki in the Japanese version and Justin Cowden in the English version.

Pence
Pence is a character from Kingdom Hearts II. From Twilight Town, he is a fifteen year-old boy and a friend of Hayner and Olette, and Roxas while Roxas was in the Simulated Twilight Town. He also appears in Kingdom Hearts 358/2 Days, alongside Hayner and Olette, talking to Roxas and Axel

In DiZ's Simulated Twilight Town, he, Hayner, and Olette were best friends to Roxas. Later, in the real Twilight Town, he and his friends slightly recognize Sora after he came out of his year-long sleep, but they don't mention Roxas. The trio of friends send Sora, Donald, and Goofy off at the Train Station. Pence later becomes friends with Kairi, and tries to find her after she is taken by Axel. Outside of the Old Mansion, he, Hayner, and Olette meet up with Sora and eventually find the Simulated Twilight Town through Pence's knowledge of computers.

He is voiced by Hayato Taya in the Japanese version and by Sean Marquette in the English version.

Olette
Olette is one of the characters in Kingdom Hearts II. A resident of Twilight Town, Olette is a fifteen year-old girl and is a friend of Hayner and Pence (and Roxas, or at least the virtual version of herself). She is a kind and caring girl, and is the responsible one of the group. She also appears in Kingdom Hearts 358/2 Days, alongside Hayner and Pence, talking to Roxas and Axel.

Olette meets Roxas for the first time in Kingdom Hearts 358/2 Days, running into the Nobody while he explores Twilight Town along with the other members of Hayner's gang. Later in the storyline, after Roxas is captured and defeated by Riku, a data-version of Olette is friends with the Nobody in the Simulated Twilight Town. Later in the game, Olette, Hayner, and Pence meet Kairi, who came to Twilight Town from the Destiny Islands. Eventually, Axel comes to Twilight Town and kidnaps Kairi again. After this, Olette and her two friends go to the Old Mansion in search of Kairi, where they regroup with Sora. They help discover the Simulated Twilight Town, where Sora left Twilight Town once again.

She is voiced by Yuka Hirasawa in the Japanese version and by Jessica DiCicco in the English version.

Kairi's Grandma
Kairi's Grandma was an elderly woman who resided in Radiant Garden with her granddaughter, Kairi. After Aqua rescued her granddaughter, Kairi pleads her grandmother to tell her her favorite fairy tale about the light and the darkness as the two walk away.

In Kingdom Hearts, Kairi's grandmother appears when Sora experienced Kairi's memories. In the flashback, she told Kairi the story about light and the birth of darkness.

She is voiced by Masako Ikeda in the Japanese version and Kathryn Beaumont in the English version.

Xigbar
Xigbar is Rank II within the original Organization and a member of the True Organization XIII. He is the Nobody of Braig, one of the six apprentices of Ansem the Wise. Xigbar has power over space and commands the Sniper Nobodies. In Kingdom Hearts 358/2 Days, Xigbar is featured as a playable character in Mission Mode.

In Kingdom Hearts Birth by Sleep, Braig stirkes a deal with Master Xehanort to give him the means to use a Keyblade in exchange for aiding him in manipulating Terra into using his darkness. Pretending to have caught Xehanort, Braig confronts Terra who fights him at Xehanort's goading and defeats Braig, resulting in permanent damage on Braig's right eye and scarring on his left cheek. After this, Xehanort places a fragment of his heart inside Braig, who then travels to the Keyblade Graveyard. Aqua battles Braig for trying to turn them against their friend and defeats him, however Braig is able to return to Radiant Garden. Later, Braig leads Dilan and Ansem to an amnesiac Xehanort, the result of Master Xehanort possessing Terra's body, who is made into an apprentice as well. Over time, Ansem would grow worried of the Darkness in people's hearts and so, he created a laboratory in his castle's basement for such experimentation, which caused the apprentices to turn into Heartless and Nobodies, Braig becoming Xigbar. The six Nobodies formed Organization XIII, and banished Ansem the Wise to the Realm of Darkness.

In Kingdom Hearts II, after appearing to Sora in Hollow Bastion along with the rest of the Organization, Xigbar stays behind to taunt Sora further. He later travels to The Land of Dragons, where he converts a dragon into the Heartless Storm Rider. When Sora catches up to him, Xigbar reveals himself and summons several Snipers to distract Sora and his allies as he makes his getaway. At the Castle That Never Was, Xigbar engages Sora in battle, but ultimately is defeated and fades into darkness. In Kingdom Hearts 3D: Dream Drop Distance, Xigbar is revived as part of the true Organization XIII. He confronts Sora in The World That Never Was and explains that he and his companions had orchestrated Sora's journey. Eventually, Sora approaches both Xemnas and Xigbar, who explain that the true purpose of Organization XIII was to create thirteen vessels to harbor pieces of Master Xehanort's heart, with Sora being their intended thirteenth vessel. When Sora resolves to fight the two Organization members, an infuriated Xigbar leaves Xemnas to deal with Sora. Later, in Where Nothing Gathers, Xigbar observes Master Xehanort's attempt to make Sora into his final vessel. However, when rescue arrives to save Sora, and Xigbar is forced to retreat with his accomplices.

He is voiced by Hochu Otsuka in the Japanese version and by James Patrick Stuart in the English version.

Xaldin
Xaldin is Rank III within Organization XIII. He controls wind, and uses his power over the air to freely manipulate his six lances without holding them directly. He commands the Dragoon Nobodies. He is the Nobody of Dilan, a former apprentice of Ansem the Wise and his castle guard along with Aeleus.

In Kingdom Hearts Birth by Sleep', Ventus encounters them while he is looking for Mickey Mouse, but they refuse to let him in saying that castle is closed. Ven spotted an Unversed and chases it. The two move to follow but Dilan recalls their job to guard the castle, and the two return to their positions. Later, Dilan and the other apprentices find an amnesiac Xehanort nearby the castle. While Braig takes Xehanort to the castle, Dilan carries the armor and Keyblade for Braig. Over time, Ansem would grow worried of the Darkness in people's hearts and so, he created a laboratory in his castle's basement for such experimentation, which caused the apprentices to turn into Heartless and Nobodies, Dilan becoming Xaldin. The six Nobodies formed Organization XIII, and banished Ansem the Wise to the Realm of Darkness. During Kingdom Hearts: 358/2 Days, he is teamed with Roxas on missions to Beast's Castle and takes an interest in Beast's relationship with Belle. In Kingdom Hearts II, he remains at the castle, attempting to plunge Beast's heart into despair in an attempt to separate the Beast's heart from its body. When Sora arrives, Xaldin had already drained Beast of much of his hope and kindness by convincing him that Belle is plotting against him. Sora and his friends eventually reaches Beast's bedroom, but Xaldin tells Beast that they were only there to help Belle against Beast, causing the latter to attack Sora as Xaldin flees, but Sora is able to bring Beast back to his senses. Xaldin strikes again when Sora returns to Beast's Castle and steals Beast's rose. When Belle finds Beast's rose, Xaldin kidnaps her as well as retaking the rose. Xaldin then forces Beast to choose either Belle or the rose to leave behind. Before Beast has time to choose, however, Belle elbows Xaldin in the side and grabs the rose, taking the time from Xaldin's surprise to escape his grasp. Xaldin then battles Sora and Beast, but is eventually defeated and fades into darkness. Dilan is resurrected following the destruction of his Heartless and Xaldin, and awakens with the other apprentices in Hollow Bastion. However, he is not fully recovered, so he rests with Even.

He is voiced by Yosuke Akimoto in the Japanese version and by David Dayan Fisher in the English version.

Vexen
Vexen is Rank IV within Organization XIII. He controls ice and uses it to command storms and blizzards while defending himself with his massive shield. He is the Nobody of Even, a former apprentice of Ansem the Wise. Vexen appears in Kingdom Hearts: Chain of Memories. He appears in Kingdom Hearts 358/2 Days as a playable character in Mission Mode.

In Birth By Sleep, a decade prior to Kingdom Hearts, Even was a scientist for Ansem the Wise and Ienzo's caretaker. He first approaches Dilan and Aeleus when the two guards wanted to save Ventus from an Unversed, but Even assures them that Ventus could handle it. After Ienzo wandered off, Even found him walking towards Ventus, reminding Ienzo not to leave because it is dangerous. However, Even thanks Ventus for finding Ienzo. Over time, Ansem would grow worried of the Darkness in people's hearts and so, he created a laboratory in his castle's basement for such experimentation, which caused the apprentices to turn into Heartless and Nobodies, Even becoming Vexen. The six Nobodies formed Organization XIII, and banished Ansem the Wise to the Realm of Darkness. In Kingdom Hearts: Chain of Memories, Vexen assists Lexaeus and Zexion in their efforts to stop Marluxia and Larxene from overthrowing the Organization by creating the Riku Replica and uses it to carry out several experiments on Riku and Sora. Vexen then confronts Sora and forces Sora to enter a memory of Twilight Town. After battling and losing, and seeing that Sora is too dangerous, Vexen plans to tell him of Marluxia's plot and Roxas, but he is incinerated by Axel before he can reveal this. Even is resurrected following the destruction of his Heartless and Vexen, and awakens with the other apprentices in Hollow Bastion. However, he is not fully recovered, so he rests with Dilan.

He is voiced by Machi Nozawa in the Japanese version and by Derek Stephen Prince in the English version.

Lexaeus
Lexaeus is Rank V within Organization XIII. He wields control over earth with his massive Skysplitter Axe Sword. His human form, Aeleus, was one of Ansem the Wise's six apprentices as well as a guard for his palace. Lexaeus appears in Kingdom Hearts 358/2 Days as a playable character in Mission Mode.

In Kingdom Hearts Birth by Sleep, he and Dilan meet Ventus, but keep him from getting inside the castle, telling him to leave before the monsters come out. After spotting an Unversed, the two move to follow it but Dilan recalls their job to guard the castle, and the two return to their positions at the door. Over time, Ansem would grow worried of the Darkness in people's hearts and so, he created a laboratory in his castle's basement for such experimentation, which caused the apprentices to turn into Heartless and Nobodies, Aeleus becoming Lexaeus. The six Nobodies formed Organization XIII, and banished Ansem the Wise to the Realm of Darkness. In Kingdom Hearts: Chain of Memories, Zexion, Vexen, and Lexaeus learn that Larxene and Marluxia plan to make use of Sora's power by deceiving him into feeling loyalty to Naminé and use him as a weapon. The senior members decide to make similar use of Riku by creating the Riku Replica. However, when Vexen is destroyed, the replica wanders off, so, Lexaeus confronts Riku. He tries to sway Riku to give in to the darkness inside him and use his full powers. Riku refuses to cooperate, and Lexaeus attacks him. However, Riku's defeat allows Ansem, Seeker of Darkness to take control and destroys Lexaeus. Aeleus is restored following the demise of his Heartless and Lexaeus and awakens inside Hollow Bastion with the remaining apprentices and Lea and soon realizes that Braig and Isa are mysteriously absent.

He is voiced by Fumihiko Tachiki in the Japanese version and by Dave Boat in the English version.

Zexion
Zexion is Rank VI in Organization XIII. He weaves illusions to fight for him with a book called a Lexicon. His human form, Ienzo, was one of Ansem the Wise's six apprentices. Zexion also appears in Kingdom Hearts 358/2 Days, as one of the playable characters in Mission Mode.

In Kingdom Hearts Birth by Sleep, a young Ienzo was attacked by Unversed until Ventus came to his rescue. Shortly after the battle, Even arrived and gave Ventus both his and Ienzo's thanks, explaining that he had been assigned to take care of Ienzo since the death of his parents, and returned to the castle with Ienzo. However, Ansem would grow worried of the Darkness in people's hearts and so, he created a laboratory in his castle's basement for such experimentation, which caused the apprentices to turn into Heartless and Nobodies, Ienzo becoming Zexion. The six Nobodies formed Organization XIII, and banished Ansem the Wise to the Realm of Darkness. In Kingdom Hearts: Chain of Memories, after Sora had been lured into Castle Oblivion, Zexion discovers that Riku is in the castle. Zexion soon learns that Marluxia intends to take control of Organization XIII, with the help of Larxene, by using Sora as their puppet. The senior members decide to oppose Marluxia's plot by having Vexen investigate Marluxia under the guise of offering to help using the Riku Replica he creates with combat data from the real Riku. However, Vexen is eventually killed by Axel, so Lexaeus tries to sway Riku into joining them, but Lexaeus is destroyed as well. Zexion then appears before Riku and creates an illusion of Destiny Islands, playing on Riku's guilt by telling him Sora will always oppose him as a host of the dark. However, Riku is able to overcome the facade with the power of darkness and defeats Zexion. Zexion is forced to flee, but he is absorbed by the Riku Replica before he can do anything, destroying him. This allows Ienzo to be restored to human form, now as an adult, in Hollow Bastion along with the apprentices and Lea, where he explains to Lea about how a person is meant to return to human form in the same world they lost their heart, which prompts Lea to go out to search for Braig and Isa.

He is voiced by Akira Ishida in the Japanese version and by Vincent Corazza in the English version.

Saïx
Saïx is Rank VII within Organization XIII, as well as the second-in-command, and the secondary antagonist in both Kingdom Hearts II and  Kingdom Hearts 358/2 Days. He derives power from the Moon while wielding a claymore. He commands the Berserker Nobodies. He is the Nobody of Isa, who was once a close friend of Lea, Axel's original form when the two lived in Radiant Garden.

In Kingdom Hearts Birth By Sleep, Isa meets Ventus in Radiant Garden and properly introduces himself with Lea. The two befriend him, though Isa is not as forthcoming as Lea is. Afterwards, at an unknown point in time, Isa's heart was consumed by darkness, turning him into a Heartless. However, his strong will gave him the ability to continue on as his Nobody, Saïx. Some time later, Saïx joins Organization XIII alongside Axel. In Kingdom Hearts 358/2 Days, Saïx oversees the operation with Xion and Roxas, but with a growing friendship between Axel, Roxas and Xion, a rift between Saïx and Axel begins to form before he confronts Axel himself. In Kingdom Hearts II, he visits Sora and his friends in Twilight Town, warning them of Axel, now considered a traitor in the Organization, for Axel will stop at nothing to turn Sora into a Heartless while the Organization wants nothing to happen to Sora. During the Heartless Invasion at Hollow Bastion, and reveals that Kairi is their captive, and asks Sora to prove just how much he cares about Kairi. In response, Sora willingly begs at the Nobody's feet, which Saïx refuses sadistically upon to enrage him and reveals that the Heartless Sora destroys will only further the creation of the Organization's artificial Kingdom Hearts. However, Maleficent appears, refusing to let the Organization claim Kingdom Hearts, and holds off Saïx to allow Sora and the others to escape. To Saïx's chagrin, Kairi is able to escape with help from Naminé in the Organization's castle. Saïx attempts to stop Kairi and Naminé, but Riku attacks him from behind, holding him down until Saïx escapes. After releasing Heartless upon the heroes, Sora confronts Saïx, who calls Sora "Roxas" before battling the group. However, despite the incredible power and abilities he drew from Kingdom Hearts, Saïx is destroyed. In Kingdom Hearts 3D: Dream Drop Distance, Saïx is brought back as one of the thirteen vessels for Master Xehanort's heart, shocking Lea when the two fight each other. After Donald and Goofy arrive, Saïx and the rest of the true Organization XIII return to their own time periods to await the time to strike again.

He is voiced by Ginpei Sato in the Japanese version and by Kirk Thornton in the English version.

Demyx
Demyx is Rank IX within Organization XIII. He controls water, and uses his weapon, the sitar, as a musical instrument to make water fight for him in battle. He commands the Dancer Nobodies. He is generally lazy, preferring reconnaissance missions over those requiring him to fight.

In 358/2 Days Demyx reluctantly agrees to be on missions with Roxas out of fear of what Xemnas would do to him.

In Kingdom Hearts II, Demyx is assigned to look after Sora's progress and continue collecting hearts for the Organization. Later, Demyx steals the Olympus Stone in Olympus Coliseum, and soon encounters Sora within the Underworld once more. After attempting to talk to Roxas through Sora, Demyx pits him against his water copies, but is unsuccessful in defeating Sora and escapes instead of continuing the fight. Demyx later confronts Sora in Hollow Bastion during the Battle of the 1000 Heartless, again greeting Sora in a rather friendly manner. However, Sora and his companions' response is hostile, even claiming that Demyx is unable to fight. When Sora and co. claim that the Nobodies do not have hearts, Demyx's normal carefree air vanishes, and he silences them with a much darker tone and attacks with all his strength. In the end, however, Demyx fades into darkness.

He is voiced by Kenichi Suzumura in the Japanese version and by Ryan O'Donohue in the English version.

Luxord
Luxord is Rank X within Organization XIII. He possesses the power of time manipulation, and uses his ability to force his opponents to play timed games, with unfortunate consequences if they cannot learn the rules and lose. He commands the Gambler Nobodies.

Luxord appears in Kingdom Hearts 358/2 Days, often teaming up with Roxas in missions in Wonderland. Luxord then appears in Kingdom Hearts II, as the mastermind behind the theft of cursed pirate gold in Port Royal. When Sora allies with Jack Sparrow, Luxord appears on the Black Pearl after they have recovered Will, with the cursed gold beside him. He reveals that he is at Port Royal to assess the value of the cursed gold to the Organization and invokes the right of parley before Jack can get off a shot with his pistol. He agrees to hand over the chest, but takes four medallions from it when he does so, sending them off to his Gambler Nobodies, who escape with them. This has the effect of returning the curse on Jack. After defeating the Grim Reaper and lifting Jack's curse, Luxord manages to bring the Grim Reaper's heart to Kingdom Hearts, and promptly flees. Luxord reappears in Organization XIII's fortress in The World that Never Was. When Sora, Kairi, Riku, Donald and Goofy enter the area where Luxord waits, Luxord uses his cards to remove Sora's allies from the area, and challenges Sora to a game involving time. Luxord fights against Sora, but Sora is able to defeat him.

He is voiced by Jōji Nakata in the Japanese version and by Robin Atkin Downes in the English version.

Marluxia
Marluxia is Rank XI within Organization XIII and the lord of Castle Oblivion, one of the organization's bases. He controls flowers, and uses his control to command beams of destructive energy from flower-themed minions, bombard the opponent with flurries of petals, and to attack opponents with his massive scythe.

He makes an appearance in Kingdom Hearts: 358/2 Days. Like other members of the Organization, Marluxia aids Roxas in at least one mission and is polite to Roxas in their mission.

Originally discovered by senior Organization members Xigbar and Xaldin, Marluxia is the mastermind of an internal rebellion in the Organization against Xemnas. Working with Larxene, they plan to use a Nobody named Naminé to deceive Sora and use him to defeat the senior Organization members. Marluxia and Larxene eventually learn that Vexen has been reporting back to Lexaeus and Zexion regarding their revolt, and threatens to tell "the Superior" of the Riku-Replica's failure. Vexen agrees to eliminate Sora if Marluxia doesn't reveal this. However, Vexen is assassinated before he can reveal the truth to Sora by Axel to allow the latter the full trust of Marluxia and Larxene. Once Marluxia and Larxene are gone, Axel allows Naminé to escape, freeing her from Marluxia's control, ruining Marluxia's plot. Larxene is eventually destroyed by Sora, leaving only Marluxia. Confronted by Axel, Marluxia makes Naminé appear in front of him to provoke Sora (who had just appeared in the room) into attacking Axel as he vanishes. After defeating Axel, Sora pursues Marluxia into his inner chambers. Marluxia orders Naminé to completely erase Sora's memory, but Naminé, remembering Sora's kindness towards her, refuses the order along with the Riku-Replica. Confused and irritated that Sora and the replica would accept their memories of Naminé, Marluxia attacks them. Sora destroys Marluxia, but finds that the real Marluxia had been hiding in a back room. Sora advances into the final room to confront Marluxia and defeats him, causing Marluxia to fade in a flurry of flower petals.

Marluxia is voiced by Shūichi Ikeda in the Japanese version and by Keith Ferguson in the English version.

Larxene
Larxene is Rank XII within Organization XIII. Larxene is the group's only female member, and also has a very sadistic nature. She controls lightning, and uses it along with throwing knives to thrash opponents with rapid attacks.

In 358/2 Days, Larxene showed a true hatred with having to train Roxas. She slipped out the fact there was another Keyblade wielder besides Roxas. Upon being asked who it was, she replied, "Mind your own beeswax."

In Chain of Memories, Larxene is assigned to Castle Oblivion to help conduct experiments on memories. As soon as Sora enters Castle Oblivion, Naminé begins manipulating his memories as per Marluxia's orders. At that point, Larxene confronts Sora directly, revealing Naminé is being held hostage in the castle, and attacks him viciously. Larxene fights Sora, taunting him and calling him heartless for "forgetting" about Naminé, before being defeated and escaping. Larxene is later approached by Vexen, who offers to help her, Axel and Marluxia evaluate Sora's power with the Riku Replica. As per Larxene's suggestion, Vexen decides to have Naminé alter the replica's memory so that it would think it is the real Riku, much to the replica's chagrin. After Axel's betrayal, Larxene reveals the truth to Sora before attacking him in a rage. Larxene is eventually defeated in a battle against Sora and fades back into darkness.

He is voiced by Yūko Miyamura in the Japanese version and by Shanelle Gray in the English version.

Riku Replica
Riku Replica is a Replica made of data from Vexen's research of Riku who appeared in Kingdom Hearts: Chain of Memories and acts as an antagonist in Sora's story and Riku's story while they were in Castle Oblivion.

Originally a subject to test the real Riku, the Replica quickly lost due to a lack of experience. Despite his failure, the Organization exploits him afterwards by having Naminé rewrite the replica's memories so that he can be a more useful tool use him to manipulating Sora. As a result, Riku Replica believed himself to be the real Riku and swore to protect Naminé. Sora encounters the revised replica and mistakes him for the real Riku when they engage in battle, but the replica escapes after the battle passes. Riku Replica's false memories come to an end when he meets again with Sora, and when Sora tried to help him, the Replica knocked Sora back. Just as the replica was about to kill Sora, a desperate Naminé shatters Riku Replica's false memories and his heart with them. Although seemingly comatose, Riku Replica reappears at the top floor, where he saves Naminé from Marluxia as, despite losing his memory, he remembered his oath to protect Naminé. After Marluxia's defeat, he leaves Sora and Naminé to confront the real Riku. After absorbing Zexion, which kills the Organization member in the process, he engages Riku, intending to make himself the only true Riku. In the end, the replica is defeated. With his dying breath, he asks Riku where a replica's heart like his would go. Riku comforts the replica, stating that it would go to the same place as his. The replica smiles, accepting that he will simply be a replica to the end, before fading back into the Darkness.

He is voiced by Mamoru Miyano in the Japanese version and by David Gallagher in the English version.

Tidus
Tidus is a minor character in the series, and a friend of Sora, Riku, and Kairi. He is one of the residents living in Destiny Islands and is part of a trio including Selphie and Wakka, whom he spends most of his time with. When the Heartless destroy Destiny Islands, his whereabouts were unknown, but it is likely he disappeared with the islands' destruction, but returned with the Destiny Islands were restored.

He is voiced by Masakazu Morita in the Japanese version and by Shaun Fleming in the English version.

Selphie
Selphie Tilmitt is a resident of the Destiny Islands and a friend of Sora, Kairi and Riku. She spends most of her time with Tidus and Wakka. When the Heartless destroy Destiny Islands, her whereabouts were unknown, but it is likely she disappeared with the islands' destruction, but returned with the Destiny Islands were restored. She plays a larger role in Kingdom Hearts II, where she had been Kairi's closest friend over the year of Sora's absence, and although Selphie has no memory of Sora, she does believe Kairi's story of his existence.

She is voiced by Mayuko Aoki in the Japanese version and by Molly Keck in the English version.

Wakka
Wakka is a resident of the Destiny Islands and a friend of Sora, Kairi, and Riku. He spends a lot of time with Tidus and Selphie, and treats them just as a big brother would. He originates from Final Fantasy X.

He is voiced by Kazuya Nakai in the Japanese version and by Dee Bradley Baker in the English version.

Leon
Leon is the leader of both the Heartless Resistance and the Hollow Bastion Restoration Committee. Originally he went by the name Squall Leonhart, but due to his world being destroyed by the Heartless, he changed his name in an attempt to amend for his mistakes. A former resident of Radiant Garden, Leon resided in Traverse Town after his world was consumed by darkness. In the first game Kingdom Hearts, Leon locates the wielder of the Keyblade, Sora, within Traverse Town and explains to him the Keyblade's purpose. Uniting Sora with Donald and Goofy, Leon then sent them on their journey. Eventually, he follows Sora to Hollow Bastion for the final battle and wishes him good luck. After Kingdom Hearts is sealed, Leon, Yuffie, and Aerith are reunited with Cid and Cloud in Hollow Bastion, where they attempt to rebuild their tattered world.

However, this peace would not last by Kingdom Hearts II, when Nobodies and Heartless began to appear, which culminated in the Battle of the 1000 Heartless. After the battle is over, the town becomes infested with Heartless from the actions of the Master Control Program. Once the threat has passed, Tron restores Hollow Bastion to remind everyone of the town's true name; Radiant Garden.

He is voiced by Hideo Ishikawa in the Japanese version of the series. In the English version, Leon was voiced by David Boreanaz in Kingdom Hearts and by Doug Erholtz in Kingdom Hearts II.

Cloud
Cloud is a swordsman originating from character Final Fantasy VII that makes his debut in Kingdom Hearts. In his first appearance, Cloud had searched for his darkness embodiment Sephiroth that he strikes a deal with Hades to find him if Cloud eliminates Hercules. However, Cloud encounters Sora before he can fight Hercules, and refrains from killing him and Hercules after the latter saves him from Cerberus. After locating Sephiroth, the two battle but the outcome is not seen, although Cloud later returns to Hollow Bastion, and reunites with Leon, Aerith, and Yuffie. In Kingdom Hearts II, Cloud aids the residents of Hollow Bastion in defending against the Heartless and participates in the Battle of 1000 Heartless, finding Sephiroth in the midst of the chaos. Finally confronting his nemesis, Cloud battles him. Tifa arrives on the scene wishing to help Cloud, and offers Cloud her light to protect him, and though Sephiroth insists that the light doesn't suit Cloud, he begins to glow with a bright light that washes over Cloud and Sephiroth as they fight, causing them to vanish.

He is voiced by Takahiro Sakurai in the Japanese version and by Steve Burton in the English version.

Cid
Cid is a computer expert and resident of Traverse Town who originally came from Radiant Garden. In the first game, Cid is one of the first characters that Sora meets and befriends after arriving in Traverse Town. He runs an accessory shop in town's 1st District, but eventually turns over the accessory shop to someone else, and he begins selling Gummi Ship parts outside the synthesis shop. After Sora sealed Kingdom Hearts, he returns to his world, meeting up with Cloud on the way. In Kingdom Hearts II, he becomes a member of the Hollow Bastion Restoration Committee. Cid seems to have a rivalry with Merlin, with Cid favoring technology over magic and Merlin favoring magic.

He is voiced by Kazuhiro Yamaji in the Japanese version and by Chris Edgerly in the English version.

Aerith
Aerith is one of the three core Final Fantasy characters of the series, and takes an active support role with them in the defense of Hollow Bastion in Kingdom Hearts II. She also plays a part in Cloud's story, though does not directly assist him as she does her other allies.

In Kingdom Hearts II, Aerith is a member of the Hollow Bastion Restoration Committee. She aids during the invasion of Hollow Bastion by healing Yuffie and presumably continues to aid other characters or fight against the Heartless. Throughout the story she encourages Cloud to do what he must to fulfill his goals. Aerith is sure that Cloud will find his light, which will lead the way back to them. In the ending credits, she is seen sitting on a ledge and looking up towards the Radiant Garden's sky, possibly wondering what happened to Cloud and Sephiroth after their battle.

She is voiced by Maaya Sakamoto in the Japanese version of the series. In the English version Aerith was voiced by Mandy Moore in Kingdom Hearts, and by Mena Suvari Kingdom Hearts II.

Yuffie
Yuffie is a former resident of Radiant Garden. She travels with Leon, whom she often refers to by his real name, Squall - this usually causes annoyance on Leon's part. She sometimes refers to herself as the "Great Ninja Yuffie", wielding a large fuma shuriken as her weapon.

Ever since the destruction of her home, Yuffie lived with her old friends in Traverse Town. After Leon battles a boy named Sora, she drags the two back to the motel to heal, where Sora mistakes her for Kairi when he wakes up. Along with Leon, she teaches Sora about the keyblade and its purpose. Later on after Sora, Donald, and Goofy has but an end to Maleficent and her councils of villains, Yuffie along with Leon, Aerith, and Cid finally returns back to their home world. In Kingdom Hearts II, she is the first person to reunite with Sora in Hollow Bastion, and introduces her friends from Traverse Town and the Hollow Bastion Restoration Committee (the latter of which she is a member of).

She is voiced by Yumi Kakazu in the Japanese version of the series. In the English version Yuffie was voiced by Christy Carlson Romano in Kingdom Hearts, and by Mae Whitman in Kingdom Hearts II.

Moogle
Moogles are creatures that appear in each of the Kingdom Hearts games, always running one of the game's shops. They generally operate their omnipresent stores through holograms, instead of in person, as they hate getting their pom-poms ruffled. Moogles appear to have no true allegiance with the game's villainous entities, as many were not spared of their homeworld's destruction by Maleficent's forces and were forced into Traverse Town, while a Moogle wearing a Black coat was seen enjoying a business relationship with Organization XIII, but it holds no loyalty to them.

A type of Moogle known as an Org Moogle is present in the games that seems to work for Organization XIII willingly, and is identified by the black uniform. It is unknown if he is a normal moogle who just works for them, or if he is possibly a Moogle Nobody.

Sephiroth
Sephiroth is a mysterious swordsman described as the embodiment of Cloud's darkness. Sephiroth first appears as an opponent within the Platinum Match at Olympus Coliseum. After Sora wins, Cloud enters. Sephiroth invites Cloud to turn to the darkness, but Cloud refuses, launching a high-speed aerial battle whose outcome is not seen.

Sephiroth's role is greatly expanded in Kingdom Hearts II. He appears during the Heartless invasion of Hollow Bastion to Sora and company, asking about Cloud's whereabouts. Sephiroth learns from the group that Cloud is becoming enlightened and desires to fight him. During the battle, Cloud is surrounded by Heartless, but Sephiroth defeats them all in one slash, and leaves just as Tifa arrives. Sora, Donald, and Goofy later learn the truth of Sephiroth's being, and inform Cloud that Sephiroth wants to see him so they can settle their feud. Cloud arrives to Sephiroth, and they initiate a battle, with Sephiroth desiring to draw Cloud into the darkness. However, Tifa protects Cloud, saying that Cloud does have light in him, and that even if he doesn't, then he just needs to be surrounded by light. Nevertheless, Sephiroth and Cloud start off for another battle, and after Tifa's intervention, Cloud glows in light, surprising Sephiroth. The two disappear in a brilliant flash of light, their fate afterwards is unknown.

Although Sephiroth doesn't appear in the prequel Kingdom Hearts: Birth by Sleep, he is indirectly alluded to by Zack, who stated he was training to become a soldier at the Olympic Coliseum to emulate a hero of his. In addition, it is implied that Sephiroth ambushed Zack in the ending.

He is voiced by Toshiyuki Morikawa in the Japanese version of the series. In the English version Sephiroth was voiced by Lance Bass in Kingdom Hearts, and by George Newbern in Kingdom Hearts II, the latter of whom acted as Sephiroth's standard English voice actor.

Seifer
Seifer is a resident of Twilight Town. Seifer is always seen with his posse Fuu, Rai, and Vivi. He shares a rivalry with Hayner and his gang, and often picks fights with them. Seifer is cocky, sarcastic, and a self-proclaimed protector of order, but is in actuality a bully to others.

In the Simulated Twilight Town, Seifer is the leader of the town's Disciplinary Committee, and is a rival of Roxas, always calling him a chicken-wuss and picking fights with him and his friends. Ironically, Seifer is the first clue that the town was virtual and there was a malfunction in the virtual world; when he taunts Roxas, things start to get slow and strange. In the real Twilight Town, when he meets Sora, Donald, and Goofy, he treats them like Roxas in the simulated Twilight Town. However, when they save him and his gang from trouble, he gives them the Struggle Trophy, a sign of great respect.

He is voiced by Takehito Koyasu in the Jpanese version and by Will Friedle in the English version.

Rai
Rai, along with Fuu and Vivi is a member of the "Twilight Town Disciplinary Committee" led by Seifer. Rai isn't terribly bright, but that's not too much of an impediment since his main role in the gang is to toss his considerable weight around. He's got an infamous habit of ending sentences in "y'know", which is joked about in Jiminy's Journal. He is never seen without Fuu.

He is voiced by Kazuya Nakai in the Japanese version and by Brandon Adams in the English version.

Fuu
Fuu, along with Rai and Vivi, is a member of the "Twilight Town Disciplinary Committee" led by Seifer. Fuu speaks in single words or short phrases.

She is voiced by Rio Natsuki in the Japanese version and by Jillian Bowen in the English version.

Vivi
Vivi is a character that makes his debut in Kingdom Hearts II. He originates from Final Fantasy IX and is the only character from said game to appear in the series, although he is more weak-willed here. He is one of Seifer's gang's members, and the only member not from Final Fantasy VIII.

In the simulated Twilight Town, Vivi enters the Struggle competition, but his data soon becomes possessed by a Nobody and he gains incredible powers. He easily defeats Seifer with his fast movement and speed until he is defeated by Roxas, forcing Vivi's data to reveal its true form as a Dusk. After the Dusk is defeated, the real Vivi appears, wondering how he got here. Roxas later fights fourteen Vivis (created by Nobodies hacking the system) in a tunnel. Vivi reappears, and after Roxas and company move away from the tunnel, it reveals its true form to be a Dusk.

His Struggle battle may be a homage to the Black Magic that he uses in Final Fantasy IX. Furthermore, that Nobodies masquerade as him is a reference to his original Final Fantasy incarnation: in Final Fantasy IX, Black Mages were a race of magical beings created from Mist that did not possess souls. Thus most of them only lived a year before their bodies slowly shut down, but as the prototype Black Mage, Vivi had a much higher life expectancy.

He is voiced by Ikue Ōtani in the Japanese version and by Melissa Disney in the English version.

Setzer
Setzer is a resident of Twilight Town. Originating from Final Fantasy VI, he is an antagonist towards Hayner's group within the Kingdom Hearts series. A top Struggle fighter, he is a flashy and arrogant ladies' man as well and enjoys taunting his opponents.

A virtual Setzer appears in the Simulated Twilight Town, as the champion of the Struggle competition. Roxas faces him in the final competition, but the outcomes for whether or not he wins are different; if Roxas wins the Struggle, Setzer leaves the arena quietly, then joins in cheering Roxas as the new champion, but if Roxas loses, Setzer gives him a medal as "thanks." When Sora is in the real Twilight Town later in the game, Setzer can be fought after defeating Hayner ten times. It is implied that Seifer defeated Setzer, like Roxas in Data Twilight Town.

He is voiced by Ryōtarō Okiayu in the Japanese version and by Crispin Freeman in the English version.

Auron
Auron is a swordsman who appears in Kingdom Hearts II. During the events in Olympus Coliseum, he is an ally to Sora.

At Pete's suggestion, Hades revives Auron from the dead and offers him freedom from the Underworld if he kills Hercules. Auron declines and insults him, causing Hades, in a rage, to attack him just as Sora comes in, and the group escapes, Auron joining them. Soon after escaping Cerberus, Auron disappears. Auron is later revealed to be the final contestant in the Hades Cup, who was fighting to atone for his crime — to have existed. When Hades tells Auron to not only defeat Hercules, but also get rid of Sora, Donald, and Goofy, Auron refuses, forcing Hades seal Auron's free will into a doll and forces him to fight Hercules. As Sora searches for the doll, Auron does battle with Hercules and comes close to defeating him. However, Sora brings back the doll before Auron can finish Hercules off, restoring his free will. Auron then joined Sora and the party to help defeat Hades. Subsequently, he decided to travel the Underworld to write his own story.

He is voiced by Ryohei Kimura in the Japanese version and by Matt McKenzie in the English version.

Tifa
Tifa is a former resident of Radiant Garden who makes her debut in Kingdom Hearts II.

When Sora revisits Hollow Bastion for the first time, he meets Tifa, who inspects Ansem the Wise's study, looking for "a guy with spiky hair" (who was actually Cloud). She nearly catches up to Cloud during the Heartless invasion, but he chases after Sephiroth, leaving her to fight a large group of Heartless on her own. She later fights alongside Sora in the Ravine Trail, preceded by Yuffie and Leon, and followed by Cloud. After Sora defeats Sephiroth in battle, he finds Cloud and tells him that Sephiroth is waiting for their battle. It is when this confrontation reaches its climax that Tifa finally catches up to Cloud. She tries to help Cloud, saying that all that needs to be done is to surround him in light, and telling Sephiroth that the darkness will always be there, but in a place that he can't reach. She fights with Sephiroth very briefly, then gives Cloud the light to overcome his darkness, after which the two men return to battle and disappear once again, leaving her to continue the pursuit.

She is voiced by Ayumi Ito in the Japanese version and by Rachael Leigh Cook in the English version.

Gullwings
The Gullwings  are a group of treasure-hunting fairies composed of Yuna, Rikku, and Paine. Each fairy is different; Yuna is unfailingly kind-hearted and polite, even bowing in respect to Sora, Donald, and Goofy and apologizing to them for bothering them; Rikku is good-natured and ditzy, the latter of which shows when she nearly reveals to Sora and friends who they were working for; and Paine is emotionally distant and anti-social. Sora, Donald, and Goofy first encounter the Gullwings in their third visit to Hollow Bastion, where the Gullwings inquire about the recent activities of Leon's group. Rikku nearly reveals that they are working for Maleficent, but Paine quickly stops her from doing so. She assures Sora that they come in peace and then teleports away. Yuna and Rikku follow, but not before Yuna apologizes to Sora and company for bothering them.

They reappear during the Battle of the 1000 Heartless, during which they cast away their allegiance to Maleficent and join the Restoration Committee in exchange for any treasure they might have. They then aid the Committee against the Heartless. After the war, they realize they had been tricked, but decide that it wouldn't be right to take the items after all that Sora and his friends had been through and assure him that they will root for them.

In the Japanese version, Yuna, Rikku, and Paine are respectively voiced by Mayuko Aoki, Marika Matsumoto, and Megumi Toyoguchi. In the English version they are respectively voiced by Hedy Burress, Tara Strong, and Gwendoline Yeo.

Zack
Zack is a young fighter who appears in Olympus Coliseum in Birth By Sleep, and is the only Final Fantasy character to appear in the game (other than the Moogles).

Zack enters the tournament held in the coliseum, but becomes an unwilling pawn of Hades when the latter uses the darkness in Zack's heart to control him. Hades uses Zack against Terra in the final round, but Terra's victory over Zack frees him from Hades' control. After their battle, Terra helps Zack up and he introduces himself. Motivated by Terra, Zack strives to be a hero, teaming up with Ventus to fight off the Unversed. Zack meets Hercules through this Unversed attack, becoming friends with Ventus and harboring a possible crush on Aqua, or just flirting with her. He also sought training under Phil to become a hero, but Phil chose to continue training Hercules in the end.

He is voiced by Kenichi Suzumura in the Japanese version and by Rick Gomez in the English version.

Neku Sakuraba
Neku Sakuraba is the protagonist from The World Ends With You, who appears in Kingdom Hearts 3D: Dream Drop Distance. He is an anti-social teenage boy who claims he does not "get" people, and rarely interacts with others. In the game, Neku stumbles across Sora in Traverse Town, whom he teaches the concept of Spirits and Nightmares to. However, Neku betrays Sora to a man in a black coat as part of a bargain, only for the man to try and attack Sora which was what Neku was against. After Sora forgives him, the players are reunited with their game partners with the help of Joshua.

He is voiced by Kōki Uchiyama in the Japanese version and by Jesse David Corti in the English version.

Shiki
Shiki Misaki is a cheerful and energetic teenage girl who carries her stuffed animal named, Mr. Mew, as her sole method of attacking in combat, and is Neku's partner. The form she appears in is not her own; it's a copy of a dear friend she envies, and her own was the price she had to pay for playing the Reapers' Game. She meets Riku after he saves her from a Nightmare, and they travel together until Shiki leaves Riku with a man in a black coat. It is later revealed that she was put up by the man in black to bring him Riku so that he would take her and Neku to their home world. Realizing that she was wrong, Shiki apologizes to Riku. Later, Shiki is finally able to reunite with Neku. After thanking Sora for helping them with the Dream Eaters, Shiki invites him to visit them in Shibuya one day.

She is voiced by Anna Hachimine in the Japanese version and by Heather Hogan in the English version.

Joshua
=== Joshua Kiryu is an extremely intelligent young boy with a refined taste and knowledge for the world around him. It is later revealed that Joshua is able to exist in both versions of Traverse Town, having brought his friends into the world to save them. Joshua bends the rules of the Reapers' Game twice by asking Riku and Sora (non-players) to help.===

He is voiced by Ryōhei Kimura in the Japanese version and by Aaron Spann in the English version.

Beat
Daisukenojo Bito (also known as Beat) is a hard-headed guy who's really a softie underneath, and gets highly embarrassed by his real name (which Riku says is a mouthful). He cares very much about his sister, believing he first thing he believes that will help if she's in trouble.

He is voiced by Subaru Kimura in the Japanese version and by Crawford Wilson in the English version.

Rhyme
Rhyme is Beat's sister and partner who balances him out with her calm demeanor. She often pokes holes in the things her brother says, making him embarrassed; unlike Beat, she knows they're foils to each other.

She is voiced by Ayana Taketatsu in the Japanese version and by Ashley Rose Orr in the English version.

Hostile Program
The Hostile Program is an attack virus created by the MCP, and is found in Kingdom Hearts II in the sub-world "Space Paranoids". After the Master Control Program attempted to escape to the outside world through the I/O tower, Tron, Sora, Donald and Goofy went to the tower and interfered with the download, forcing the MCP to active the Hostile Program to hold them off. Working together, the group was able to defeat it.

The Experiment
The Experiment is an artificial being created by Dr. Finkelstein, found in Kingdom Hearts II and a boss at Halloween Town. The Experiment was designed to be a "playmate" for Lock, Shock, and Barrel and after creating it, Finkelstein attempts to bring the creation to life, but it fails to respond. Believing that that the Experiment was a failure, Finkelstein abandons it, but is suddenly attacked by the Experiment, which has managed to come to life. The Experiment wanders out into the woods and into Christmas Town, where it steals Christmas presents from Santa Claus's workshop. This causes the presents to go missing and Jack becoming blamed for this, although he decides to help catch the thief by using the remaining presents as bait. When the Experiment comes to steal them, the group ambushes and battles it. They are able to subdue the Experiment and bring it back to Finkelstein. Santa Claus theorizes that the machine was probably looking for a heart, which it had lacked, and believes this was why it was stealing the presents, because the joy of the presents would be enough to give it a heart.

Xehanort's Guardian
Xehanort's guardian is a dark entity, similar to a Pureblood Heartless, that protects Xehanort and various of his incarnations, including Ansem and Riku-Ansem. It is mostly seen during battle.

Sora's Heartless
Sora's Heartless appears at the end of Kingdom Hearts, when Sora releases his heart. Unlike other Heartless, Sora's Heartless managed to retain his original thoughts and memories, allowing Kairi to turn him back to normal. However, traces of his Heartless were left, which is what makes Anti Form possible. His Heartless was a major enemy in Kingdom Hearts coded that was destroyed by Data-Sora, cleansing the Journal of its bugs.