Yes. He's Obito.
He is really Madara Uchiha, leader of the Uchiha Clan. That's what they said in the Manga.
Obito Uchiha was his brother.obito-tobi.......haha it makes some sense, i forgot about the uchiha clan
*Spoiler*Yes. Tobi is Uchiha Madara and as they are both in the Uchiha clan, then they are related but I'm not sure exactly what they are to each other! x
Tobi is really Madara Uchiha
yes He may not look like it but he is Mandara uchiha himself I have seen the latter manga on You tube.
Tobi is Madara Uchiha. And is one of the leaders of the Akatsuki.
there are three of them sasuke Tobi and itachi
Akatsuki didn't killed the entire uchiha clan. itachi Uchiha did. But it was a mission. Since Itachi Uchiha needed to kill the entire uchiha clan, Madara Uchiha knew everything what has happened. Sasuke Uchiha (The little brother of Itachi Uchiha) Is one of the 3 survivor's. When Sasuke killed Itachi, Tobi (Madara uchiha) told Sasuke the truth about Itachi. Since then, Uchiha Sasuke want revenge on konoha.
His last name is Uchiha because Tobi is really Madara.
tobi (a member of the akatsuki) Spoiler: Also known as Madura Uchiha the founder of the Uchiha Clan (who was thought to be dead).
Tobi is Madara Uchiha in Tobi's form!! Obito Uchiha is dead and completely unrelated besides the fact that he is an Uchiha too.
Yes. Also known as Tobi, Uchiha Madara was the founder of the Uchiha clan, and co-founder of Konoha. The Uchiha clan banished him as they feared he would start a war. In rage he summoned the nine-tailed fox to attack Konoha, which the first-hokage defeated. The hokage and Madara fought in what became known as the Final Valley. Years later, the immortal Tobi founded the Akatasuki, but remained hidden as Tobi. The only ones who know Tobi's true identity are the 6 pains and itachi.