Who is Tobi really?

[iAnrui]

Tobi is Madara Uchiha- founder of the uchiha clan- end of story  

[solo-tigger1]

Mateta

Tobi is Madara Uchiha- founder of the uchiha clan- end of story

i agree with you because, in the manga tobi says he is madara uchiha, his hairs is short because i think sasuke cut it when he killed the clan, and sasuke thought it was itachi, or to hide better  

[MANCANDY_Kuro]

he is both obito is his real name when he was still in konaha but he changes it twice after he leaves first to madara and he founds the AKATSUKI!!!!!! and then to tobi after he leaves but then soon comes back as for proof takeaway one o in obito and rearrange the letters you get tobi and he was also in kakashis team when he was younger they were best freinds then he gets smushed by a rock and everyone thinks he's dead but he really just leaves  

[saturn_warrior]

obito is tobi.
hint one
tobi's mask has the opening on the right and the left covered.
hint two
obito has the same hair style.
hint three they both have simalar face wear.
but the best hint of all the mask
he wears it and calls himself by another name to fool his old friend the copy ninja  

[Flying Rainbow Penguin]

Is there a possibility that
Tobi
Obito
and Madara
Are all the same person?
???????????????????????????????????????????????????????????????????????????????????????????????  

[EliziElric]

In the manga it tells that Madara took over Obito's body and made his name to Tobi. so basicly it is madara in obito's body. and besides Obito is dead.  

[Flying Rainbow Penguin]

No from what I've heard Kakashi Yamato and Rin all left Obito before he was announced dead.... and also Kakashi simply states about Rin that he couldn't save her...... doesn't this prove that both could still be alive?  

[Mayor Uki]

I think obito