Birthday: December 24
Occupation: Co-founder of Konohagakure, Leader of the Uchiha clan
Clan: Uchiha clan
Manga Debut: Chapter #370
Anime Debut: Naruto Shippūden Episode #130
Madara Uchiha (うちはマダラ, Uchiha Madara) was a legendary ninja who led the Uchiha clan prior to and after the formation of Konohagakure. Before the era of ninja villages, Madara and his younger brother, Izuna, were considered the most gifted members of the Uchiha clan. Even by his clan's standards, Madara's chakra was especially strong. He grew up constantly competing and training with Izuna and in their efforts to surpass each other, each gained their own Mangekyō Sharingan. With the power of the Mangekyō the two brothers took control of the clan, with Madara 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 clan to prosperity. Over the years, the Uchiha had constantly fought with the equally powerful Senju clan and as such, Madara had an undying rivalry with Hashirama Senju, the leader of the Senju clan. To bring an end to the constant fighting, Hashirama 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. Some time later, the villagers of Konoha selected Hashirama as the village's first Hokage much to Madara's dismay. Madara feared that Hashirama would oppress the Uchiha, and tried to rally support for challenging his leadership. Rather than help him, the Uchiha turned their backs on him, believing he only desired to rekindle the flames of war. Soon after being rejected the position of Hokage and being abandoned by his clan, Madara left the village, and sought out Nine-Tails. He later returned in order to challenge Hashirama in battle. They fought at the site that would someday be called the Valley of the End, where Madara was defeated, despite having Nine-Tails at his side. Control of Nine-Tails was ultimately taken from him and Madara was believed to have died.
During the Fourth Shinobi World War, after Nagato is sealed by the recently freed Uchiha Itachi, Kabuto uses his 'trump card' by having Mū use the Impure World Resurrection to summon the 'real' Uchiha Madara (then-proving that Tobi is merely using the his namesake, and that he is in fact not Madara). After being resurrected, Madara also shows his ability to utilize not only his Sharingan and Mangekyou Sharingan abilities, but also those of the Rinnegan and Wood Jutsu.