Hes imortal 'cause hes actually Madara Uchiha who helped founded Konoha i think
Madara's debut appearance as Tobi is Naruto Shippuden Episode 32: Return of the Kazekage.
Quite insane
Yes it is true that Obito Uchiha is tobi as shown in Manga Chapter 599
What no Tobi is really Madara Uchiha the man who fought the first hokage to be hokage or something to do with the village.
Shippuden Episode 112
The eight man squad, Fu and Torune, Konan, Naruto
The one with the mask "Tobi" is not Uchiha Madara. Simple as that.
good question to which unfortunatley no one has the answer (except the creators of Naruto and Naruto Shippuden ) have an answer to. :(
its in one of the naruto shippuden epsodes
Naruto Shippuden Episode 99: Raging-Tailed Beast.
Tobi fights against Konan and is victorious in the episode called Breached Mind. This is episode number 213. Tobi fights Naruto and a group of fighters in the Naruto Shippuden episode number 134. The name of the episode is Banquet Invitation.
In the Japanese version he is voiced by Wataru TakagiIn the English he is voiced by Michael Yurchak