Name: Madara Uchiha
Nicknames/Titles: Akatsuki Leader,Mizukage,Tobi.
Age: (Unknown)Seems 15-16 as tobi.
Gender: Male
Sexual Preference: Straight
Ninja Rank: MizuKage
Shinobi Village: Mist Village
Appearance: As Tobi
As Madara Uchiha
Personality:As tobi:Tobi is very Kid-like,Playful,Sweet,Kind,Like a child but gets annoying.As Madara:Serious,Intellegent,Evil.
Clan: Uchiha Clan
Chakra Elements: Fire,Darkness,Lightning,Control over time,Rebirth,Water,Ice,Lightning.
Skills/Specialties: Mangekyou Sharingan.
Weapons: Sword
History/Background Story: Decades before the start of the series, Madara grew up in constant competition with his younger brother, Izuna Uchiha who were both known as the most gifted members of their clan. Their competition led to both gaining the Mangekyo Sharingan, and with it they were able to take control of the Uchiha clan, Madara acting as its leader. Even by his clan's standards, Madara's chakra was unusually strong. Under his leadership the clan conquered all they came across, but overtime he began to lose his sight because of the Mangekyo Sharingan. To regain his vision he took his brother's eyes (an act Madara says his brother consented to), allowing him to continue to lead the Uchiha to prosperity.
In the years that followed, the Uchiha constantly clashed with the equally powerful Senju clan. To bring an end to the continued fighting, the leader of the Senju, Hashirama Senju, approached Madara with an offering of peace. Although Madara never wanted peace with the Senju, the rest of the Uchiha wanted to end the fighting and Madara had no choice but to go along with their decision. The Senju, the Uchiha, and all the clans they had conquered came together to form the village of Konohagakure. Against Madara's wishes, the villagers selected Hashirama as the village's First Hokage. Madara feared that Hashirama would oppress the Uchiha and tried to rally support for challenging his leadership. Rather than help him, however, the Uchiha turned their backs on him, believing his only motives were greed.
Abandoned by his clan, Madara left the village so that he could return to challenge Hashirama in battle. They fought at the site that would someday be called the Valley of the End where, although Madara called upon the Nine-Tailed Demon Fox, he was defeated and believed to have died. Madara faded into memory, and in time would found Akatsuki and become Kirigakure's Mizukage.
Twelve years before the start of the series, the demon fox attacked Konoha. Although Madara denies to have had any involvement in the attack, Itachi Uchiha and Minato Namikaze say the demon fox was under Madara's control at the time. A few years later he infiltrated Konoha to try and rekindle the flames of war. He was found by Itachi first, who convinced Madara to spare the village in exchange for helping to wipe out the Uchiha clan for deserting him decades earlier. Madara complied, training Itachi and providing assistance. Itachi never truly trusted Madara, however, and kept an eye on him for the rest of his life
AS TOBI:To keep in Akatsuki's shadow, Madara eventually took on the disguise of Tobi, giving orders to Pain in secret. He wears an orange, swirl-patterned mask that reveals only his right eye. He wore a different mask when he trained Itachi. His hair is cut back from the days of Konoha's founding and he wears a uniform consisting of a number of bolts and pins, which is usually concealed by his Akatsuki cloak.
While acting as Tobi, he is carefree and goofy, something that annoys most of the other members. Deidara, who believes all within Akatsuki should be serious and calm, is not pleased with Tobi's childish personality, and frequently attacks the latter in a comedic fashion when annoyed. Apparently, Madara is very commited to keeping his identity secret as he has been seen keeping up his goofy appearance even when no one was around (at least during the anime's filler arc). Kisame and Zetsu, on the other hand, somewhat appreciate Tobi's ability to brighten up a gloomy organization such as theirs.
Madara exhibits a very calm and serious personality. He speaks with less formal diction, such as not using honorifics, and shows typically "villainous" arrogance. He speaks down to Pain and has great faith in his own abilities, only acting polite to Sasuke Uchiha. He will abandon his normal personality in favor of the Tobi personality when the situation calls for it, as he does when distracting a group of Konoha ninja.
Madara has shown great ability in manipulating others to do his work for him. Minato believes that he is using Pain's ideology against him in order to control him. He, similarly, befriends Sasuke in order to get him to join Akatsuki by telling him about Itachi's past, even though he has an apparent interest in Sasuke and his abilities. While Akatsuki's goal to gain the tailed beasts is believed by most of the members to be a step in gaining control over the world, Madara implies that the real reason is to restore his Sharingan's power.