too good to say........i promote it, but i actually think its Danzo you will see it, i think he's much powerfulmost secretive? i would say kabuto. only because ha was serving under orochimaru, and then he was spying for sasori. and then it turned out that he was spying on akatsuki. and then after oro died, he absorbed him. so its always in the back of your head, like what is he up to?
i agree cash tha freakin check this thread's ovaI say Itachi. Itachi continues to amaze me even after his death. He knew a lot more than he was letting on, and he deceived Sasuke so that Sasuke would grow to hate him and become stronger. Itachi turned out to be a double-agent, murdering his entire clan but always working to protect his brother and Konoha even during his time with Akatsuki. Even Madara found Itachi troublesome. Some of Itachi's actions still haven't been explained such as his gift to Naruto. Itachi wins.
u said it!Danzo U_U because he acts secretive
We don't know much about Zetsu, but he is himself not really secretive.