That's a pretty interesting theory actually. I don't think its the case, but it is possible.

I actually thought Kabuto might be a Jinchuuriki for awhile because he possesses amazing regeneration and he used to talk about how he might get overtaken by a thirst for battle(of course, that was back in the chuunin exams and it hasn't been brought up since).
Quote Originally Posted by Abdula
Oro and most other people don't really care about the Byakugan, the Byakugan requires a highly specialized fighting style and seriously Oro doesn't fit and wouldn't need something like the gentle fist, other than that the Byakugans abilities aren't really that special.
Even if you don't know Jyuuken, Byakugan still provides 360 degree telescopic x-ray vision. I would think that would be pretty useful.