It's commonly thought that he was obito
The mask is used to hide the fact that he has sharingan only in his "right eye" which he gave his left eye to kakashi
REad the anime, he spoke about Uchiha Madara and about how he "watched" him
maybe I mis-read or something xD The mask is orange to through off the colors and the swirly lines make you focus more on the swirls then the hole on the right of the mask |