*~ Background ~*
Before the era of ninja villages, Madara was the most gifted member of the Uchiha clan. Even by his clan's standards, Madara's chakra was unusually strong. He grew up in constant competition with his younger brother, Izuna Uchiha. In their efforts to surpass the other, each gained their own Mangekyō Sharingan. With the power of the Mangekyō the two brothers took control of the clan, with Madara acting as its leader. Under his leadership, the clan conquered all they came across. Because of the never-ending series of battles of the time, Madara eventually began to suffer from overuse of the Mangekyō Sharingan, leaving him blind. In order to regain his sight he took Izuna's eyes for himself, granting him an "eternal" Mangekyō Sharingan with which he led the Uchiha to prosperity. Madara insists Izuna consented to the act.
Over the years, the Uchiha had constantly fought with the equally powerful Senju clan. To bring an end to the constant fighting, the leader of the Senju, Hashirama Senju, approached the Uchiha with an offer of peace. Although Madara never wanted peace with the Senju, the rest of the Uchiha wished to end the fighting, and Madara had no choice but to accept. 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 he only desired more power. Abandoned by his clan, Madara left the village, later returning in order to challenge Hashirama in battle. They fought at the site that would someday be called the Valley of the End, where Madara used the Nine-Tailed Demon Fox against Hashirama. Control of the Nine-Tails was ultimately taken from him and Madara was believed to have died. Despite appearing to have been defeated and gravely weakened, he was somehow able to acquire a sample of Hashirama Senju's DNA to aid him in his future goals.
Twelve years before the start of the series, Madara discovered that Kushina Uzumaki, the Nine-Tails' jinchūriki, would be going into childbirth, causing the seal keeping the Nine-Tails contained within her to weaken. Madara found where Kushina was being kept, killed her ANBU bodyguards and midwives, and took her son, Naruto, hostage. Naruto's father, the Fourth Hokage, Minato Namikaze, took Naruto back from him, in doing so separating himself from Kushina and allowing Madara to flee with her. As the seal was about to break, Madara used his Sharingan to put the Nine-Tails under his control. Since Kushina survived the extraction, Madara tried to have the Nine-Tails kill her. Minato arrived in time to save her and retreat. Madara, uninterested, summoned the Nine-Tails into Konoha and ordered it to destroy the village.
Minato soon afterwards arrived to help in the village's defence. Before he could contribute much or even tell anyone what had happened, Madara located him and tried to use his space–time jutsu to send him away and prevent further interference. Minato was able to use his own teleportation jutsu to escape, but Madara pursued him. The two began fighting and Minato struggled to successfully strike Madara. After several failed attacks, Minato finally hit Madara with the Rasengan and branded him with a seal for his Flying Thunder God Technique, allowing him to teleport to Madara whenever he wanted. He then used a Contract Seal on Madara to remove the Nine-Tails from his control. Wounded and deprived of his best weapon, Madara fled, stating that the Nine-Tails would be his again someday and that he still had other plans.
A few years later, Madara infiltrated Konoha to try to rekindle the flames of war. He was found by Itachi Uchiha 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. However, Itachi never truly trusted Madara and kept an eye on him for the rest of his life.
*~ Other actions ~*
Madara has been shown or stated to have done a number of things during his life. It is unclear when many of these events took place or, in some cases, what they entailed. His known actions include:
Meeting with Danzō Shimura around the time of the Uchiha clan's assassination.
Taking control of the Fourth Mizukage, in effect making him the "real" Mizukage. Kisame Hoshigaki was one of the few Kirigakure ninja to know of his manipulation of the Fourth. Kisame helped Madara to bring about an end to the "world of lies".
Claims to be the one who "gave" Nagato the Rinnegan.
Claims to have encouraged Yahiko to create Akatsuki.
*~ 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. When he trained Itachi, he wore a similar mask with black flame-like patterns on it, and he had longer hair than he does now. His hair is cut short 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 happy-go-lucky and goofy, something that annoys most of the other members. Deidara, who believed all the members of Akatsuki should be serious and calm, was not pleased with Tobi's childish personality, and frequently attacked the latter in a comedic fashion when annoyed. Apparently, Madara is very committed 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 organisation such as theirs. However, once his identity is revealed to everyone in Akatsuki, "Tobi" has abandoned his goofy nature and adopted Madara's personality.
*~ Appearance ~*
Originally Madara's appearance bears long, spiky shoulder-length black hair with a blue tint. Unlike Izuna, Madara did not keep it tied in a ponytail. He also wore the standard Uchiha clan's outfit: a high collared black shirt with the clan's crest on his upper back and blue pants with bandages at the ends, though Madara tends to leave the collar of his shirt open. On his waist, he had a bandage belt that held a sack that presumably holds ninja tools.
Upon declaring truce with the Senju clan and founding Konohagakure, Madara had let his hair grow even longer, to nearly waist-length. He also wore the village's forehead protector, and red armour, similar in appearance to those worn by the samurai and the Senju. Upon defection, he seems to have discarded the forehead protector.
Over the years, Madara has adopted the new appearance of Tobi: covering his appearance with various masks, cutting his hair shorter and letting it grow out again. However, when the mask is taken off, it can be assumed that his face has grown wrinkled with age, as might be noted from his pronounced under-eye bags and creases. Until his fight with Konan, Madara's left eye had not been seen. Under his mask, he appears to have bandages on his forehead as well as having a Sharingan in his left eye until losing it to Izanagi during his fight with Konan, which was removed and replaced with one of Nagato's Rinnegan eyes. Under his Akatsuki cloak, he wears a black long-sleeve top that also covers his neck and chin, a pair of black gloves, and a pair of dark blueish/black pants along with the standard Akatsuki shoes and white stirrups. On his waist, he wears a thick black belt with armour-like metal plates attached to it. Before revealing his true identity, he wore Sasori's ring on his left thumb.
After his fight with Konan, Madara changed his appearance once again. His mask changed to a light purple one that covers the entire upper-half of his head with a design that more resembles the Ten-Tailed Beast's single eye, consisting of a ripple-pattern with three tomoes around the center, two of which make out the mask's eye holes. He also returned to wearing his Uchiha robes complete with the Uchiha crest on its back, belt sash, gloves and a purple bandanna that tapers off down to his back, as well as wielding his war fan, which has switched from an orange color to a light purple.
*~ Personality ~*
Compared to his Tobi personality, Madara's true personality is considerably calmer and much more serious, but he still has a habit of joking around and disrespecting those around him. Despite his current limitations in battle, he is extremely arrogant, insulting even the strongest ninja and treating Akatsuki members as mere tools. During his duel with Konan, he looked down on her abilities as a ninja and showed some degree of contempt for her, until she destroyed his right arm and caused some injury to him. While speaking derogatorily about Pain, he still recognized his power as the strongest in Akatsuki and for possessing the Rinnegan. There are only a handful of exceptions that he admires, the most prominent being Hashirama Senju, whom he also despised the most. Despite his arrogance, he isn't above praising his enemies, like Kakashi for his speed or Minato for being able to wound him. However, he is fast to return to his egotistical persona, as he claimed to Konan that it was he who truly won the battle against Hashirama Senju, by "looking at the future". Madara was also not above trying to harm an infant Naruto in order to get the upper hand against Minato.
Madara has shown great ability in manipulating others to do his work for him. Minato believed that he was using Pain's ideology against him in order to control him. He was also able to turn Kisame into one of his most loyal followers under the promise that he would release him from his pain by creating a "world without lies". He similarly befriended 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. He appears to have a somewhat twisted outlook with respect to this, often avoiding responsibility by claiming that people acted voluntarily when they were really coerced or manipulated by him.
Madara has set his goals in getting Sasuke on his side to serve Akatsuki's goals. As such, he was pleased that when Itachi died, no one would be able to prevent him from telling Sasuke the truth of the Uchiha Clan Massacre. Madara expressed disappointment when Sasuke failed to retrieve the real Killer Bee, and was worried that he may not be easy to control. He even threatened to kill Sasuke and his entire team if they ever dare betray him and Akatsuki. However, whenever Sasuke enters deeper into the darkness of revenge, Madara shows delight, the most prominent being when Sasuke's hatred fully develops Susanoo, and when he sacrificed Karin to pierce Danzō's heart. Despite this, Madara claims to A and Kabuto Yakushi that he is willing to hand Sasuke over to them, should the situation be right.
Madara possesses an extreme hatred towards the Senju clan and the Senju-led Konohagakure, as he is a descendant of the elder brother who was passed over being the successor of the Sage of the Six Paths. This hatred was compounded when the village chose Hashirama Senju to be Hokage over him. Madara admired Hashirama the most for his power, but still hated him. This hatred led Madara to a life dedicated to revenge. Madara believes that all Uchiha are destined to walk the same path of revenge against the Senju and Konohagakure, and that Naruto, who has inherited the Senju's Will of Fire, is fated to battle Sasuke, who has inherited the Uchiha's hatred, even if Madara himself must force them to do so. Madara also seems to admire the Sage of the Six Paths, or at least just his power as he has gone to extreme lengths to obtain the Rinnegan, the Ten-Tailed Beast, and the powers of the Senju clan producing Izanagi, and has been planning decades in advance to achieve these goals.
Madara seems to enjoy sitting down and taking his time with things, especially when telling stories, just like he told Itachi's story to Sasuke and his Eye of the Moon Plan to the Kage and the samurai.
Abilities EditMadara is considered to be one of the most gifted ninja in history. He has been noted to have been born with particularly powerful chakra which the Nine-Tails claimed to be even more sinister than its own. Said to be the most powerful shinobi ever produced by the Uchiha clan, Madara possesses both formidable battle prowess and vast experience due to his advanced age. However, Madara has admitted that he is not as powerful as he was before his defeat by Hashirama Senju. The Nine-Tails' sealing into various jinchūriki also deprives him of a powerful offensive weapon.
Madara has proven skilled in a variety of areas. As Tobi, his only apparent claim to fame was his speed. He is physically strong enough to stop a slash from Suigetsu's giant sword with a single arm, and to break Torune's neck with a single move. His intimate knowledge of the ninja world allows him to recognize a jutsu and effectively counter it. Madara also has knowledge of fūinjutsu used to create jinchūriki, including when they're most vulnerable and how to extract a tailed beast. He has excellent tracking abilities, being able to find others with ease.
Madara has displayed knowledge and ability in the surgical field. In particular, Madara was able to remove and preserve Itachi's eyes after his death and later successfully transplant them to Sasuke as well as somehow implanting the Rinnegan into his own left eye after losing his Sharingan.
Throughout the series Madara has lost several limbs. The loss does not seem to cause him any pain however, and a white substance is shown flowing from the wounds instead of blood. It was later shown that he is able to recreate his limbs through an unknown method.
(NOTE: All info of Madara Uchiha came from http://naruto.wikia.com/wiki/Madara_Uchiha)
"We're all mad here. I'm mad. You're mad."