Tobi is Kakashi's old team mate and rival, Obito Uchiha, as was revealed in manga issue 599.
To hide his true indentity witch is Obito Uchiha
I am positive it is Tobi
Tobi because nobody could defeat him. But i think if naruto fight Tobi Tobi will get kill
Madara is not Tobi.
Tobi :D
No it is not. If you are referring to the episode where Tobi was with Didara in the dango shop when he said "Ichibi, Nibi, Tobi!" then no it was just Tobi being stupid.
No, Tobi does not kill Tsunade.
naruto 99
Tobi was trained by Madara
It is Uchiha, not uchia. Apparently, no Madara is not Tobi, Tobi just took Madara's name.
no he did not. Tobi is actually madara uchiha.
Tobi is actually Uchiha Madara.