Young Xehanort

Young Xehanort, referred to as the Unknown (謎 の男, Nazo no Otoko?)  and the Mysterious Figure in the North American, PAL, and Final Mix versions of Kingdom Hearts Birth by Sleep, is a boss in Kingdom Hearts Birth by Sleep and the main antagonist in Kingdom Hearts 3D: Dream Drop Distance.

This version of Xehanort is from an alternate timeline and was given the power to travel through and manipulate time itself to help Master Xehanort accomplish his goal of containing his essence in thirteen different vessels.

Kingdom Hearts Birth by SleepEdit
As Terra, Ventus, and Aqua return separately to Land of Departure's remains, they turn around when they feel a presence and find a hooded figure who challenges them to a battle. After the battle, they seem to have lost sight of the mysterious figure, and prepare to walk away when they spot him again, but he only walks away in the direction of the castle and disappears, fading out of sight.

Kingdom Hearts 3D: Dream Drop DistanceEdit
Xehanort's alternate youthful self appeared numerous times to Sora and Riku as they traverse the Realm of Sleep and awaken several worlds previously destroyed by Ansem. During these appearances, Xehanort would taunt the heroes as he recruited other versions of himself throughout time and space to complete a new Organization XIII under Master Xehanort's orders as the original Organization was meant to recruit thirteen strong beings to be used to make clones of Master Xehanort through the process of transferring portions of his heart into them but this failed as most of the members were traitorous, or too weak, and were destroyed by Sora and Riku. Young Xehanort then embarked on his mission to find suitable replacements; various versions of himself, throughout time. Xehanort also recruited Ansem and Xemnas to the new Organization.

As the story progresses, it is revealed that Ansem once traveled back in time and set this younger version of his former incarnation on his journey as a fail safe should Xemnas' Organization XIII prove to be useless in his plans. After Sora fights Xemnas which damages the former's heart, Xehanort puts him into a deep sleep, planning to use him as the final vessel. Sora is taken to the Organization's former headquarters in the World that Never Was, now submerged in the Realm of Sleep, while Riku and King Mickey attempt to save him. Xehanort impedes their attempts and engages Riku in a brutal fight, where Riku comes through victorious, but Master Xehanort returns immediately after the fight to assume control over his new army. Young Xehanort took his place amongst the ranks under his counterpart's rule and escaped with all his counterparts, once Riku, Mickey, Lea, Donald, and Goofy prevented Master Xehanort from transferring a portion of his heart into Sora to make him his final vessel.

AppearanceEdit
Young Xehanort's body is completely covered by a hooded Black Coat in Kingdom Hearts Birth by Sleep and he has a fairly masculine build. He is a tall humanoid and never speaks at any point.

In Kingdom Hearts 3D: Dream Drop Distance, his face is revealed to be similar to young Master Xehanort's. He has white hair, a young-looking face, and golden eyes.

Young Xehanort's body model is a copy of Saïx's, though it is unknown whether this has any deeper meaning.

AbilitiesEdit
Young Xehanort is an incredibly powerful being. He was granted the power to manipulate and travel through time and space by Ansem, Seeker of Darkness, which also grants him resistance to Stop spells.

He wields two weapons that bear a striking resemblance to Xemnas's Ethereal Blades, but appear to have hilts, which many of Xemnas's blades do not, but they also resemble some clock hands or clock arrows. The blades are made of light blue energy and the black handles are somewhat reminiscent of the Terminus and Ruination Ethereal Blades. The blades can be combined into a dual-blade, and extend to be lashed out like a whip. Young Xehanort wields these weapons with a reverse grip, similar to the unorthodox way Ventus wields his Keyblade. Young Xehanort has the ability to wield the No Name Keyblade in Kingdom Hearts 3D: Dream Drop Distance.

In Kingdom Hearts Birth by Sleep, he is immune to all status effects and possesses incredible speed and agility. Additionally, he is able to duplicate himself, summon pillars of fire, use a countless number of lasers and turn himself invisible. He also has access to a plethora of the numerous protagonists' most powerful attacks, such as Meteor, Mega Flare, Raging Storm and Tornado.

He has the abilities to enter the World of Sleep and summon Dream Eaters as well as opening Keyholes and Corridors of Darkness. He is also shown to inflict slow to further inconvenience Riku during the battle and even rewind time itself in order to regenerate health.

WeaponsEdit
During his battle against Terra, Aqua and Ventus he uses two glowing blue swords which are similar to Xemnas's Ethereal Blades.

In first phase of his battle during Kingdom Hearts 3D: Dream Drop Distance, he uses the No Name Keyblade. During second phase he uses his blades again.

Role in the series
In the Spongebob series, Young Xehanort will return in Spirited Away as the leader of the Nu Organization allied to Maleficent and Mang Cobra. Also,