Zetsu a.k.a Too Socio (Akatsoki Crew)

Not much is known about this mysterious character at the moment, only that he is Akatsoki's beatmaker.
The right side of his face, and likely his body, is black in color while his left side is white in color. His pupil-less eyes and superior vision suggest that he may harbor something similar to Byakugan and have the power to recognize when the beat is really good.
His first appearance was after the Naruto and Sasuke fight at the end of Part 1, which he observed in secret and working with his MPC 2000XL.
He has the ability to merge with trees and other plants. He is a missing-nin from Kusagakure no Sato (Hidden Grass Village).
He seems to have a split personality, as the white half of his face speaks only in Katakana, which could indicate a robotic voice , while the black side uses both Kanji and Kana. He is also a cannibal (in Ch 261, he ate Kisame's body substitute), which fits his "venus flytrap" body.