Quote Originally Posted by $0ft*
my theory:
Orocimaru used the mind transfering tehnic on third kazekage, thats how he got the sand armys rebelling in chuunin exams... it also explain that when one of the konoha jounin asked one of the sand jounins " is orochimaru behind this?", the sand jounin didn't know who was behind it...
The leader of Akatsuki is Kabuto(IMO)
No, he didn't. Sasori had mind-controlled the third Kazekage and uses him as a puppet against Sakura and Chiyo in their battle. If you had remembered correctly, Orochimaru had killed Gaara's father (the fourth Kazekage) a long time ago before the Chuunin exams. From there, he took his identity and gave instructions out to the Sand Ninja to work with Sound Ninja to invade Konoha.

And no, it's highly, highly unlikely that Kabuto is the Akatsuki leader when:

1) Akatsuki Leader doesn't seem to have glasses through the hologram of him
2) Their eyes look very different
3) Akatsuki Leader wanted to kill Orochimaru in the first place
4) Kabuto worships Orochimaru like a God and would do anything for him
5) Kabuto had integrated parts of Orochimaru inside of him at the current plot of the Manga