Madara, Obito or Madara's brother.
Tobi :D
Ebay?
The first Tobi is kakashi's best friend obito the second Tobi is the founder of the hidden leaf village Madara Uchia
The face of Madara Uchiha.
i think it is Madara Uchiha because he fought with the First Hokage in the Valley of End but i'm not for sure though. no one really knows the question who is Tobi behind the mask
Tobi only appears in the Shippuuden part, and he has a mask up until the war arc, where he is revealed to be *Spoiler! Do not read on if you haven't read the war arc and don't want to know who Tobi is!*Uchiha Obito, Kakashi's former teammate who was presumed dead.
here a link to a how to make a Tobi mask video... http://www.youtube.com/watch?v=4dywxM0bfmU
be like your making a lollipop then put a little hole in the right
The one with the mask "Tobi" is not Uchiha Madara. Simple as that.
naruto will brake Tobi mask with a resengan and soy un galanaso
Madara Is Not Tobi Madara Raised Obito And Trained Him & made Me Believe In Everything He Believed Tobi Just Wears A Mask Because Of The Huge Rock That Feel On Him Madara Isnt Alive.....Yet
Tobi aka madra uchia covers his face so nobody knows it him,him being madra uchia.