here,s some more info:

Zetsu - He is responsible for warning the Akatsuki of the positions of the approaching Team Kakashi and Team Gai during their extraction of Gaara's bijuu. He has the ability to merge with trees and other plants. Zetsu is a Missing-nin from the 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.

Pain - Pain acts as the leader of the group, though he and Konan secretly report to Tobi.He also was responsible for summoning the huge statue which holds the spirits of the bijuus withdrawn from the Jinchuurikis. to the group. It has been said that he's never lost a battle. He also possess the Rinnegan, an extremely rare and powerful Doujutsu that only he is known to possess. He was trained by Jiraiya for a short time with two of his friends

Tobi - Tobi was initially seen as an associate of Zetsu. He appeared clumsy but was very polite in his speech. He eventually succeeded in becoming a member and took over Sasori's position in the group. He was partnered with Deidara. After Deidara's death, Tobi gave orders to Pain about the actions of the group. He is revealed to possess the Sharingan and claims to be Uchiha Madara.