Itachi Uchiha
Powers: As the brother of Sasuke, his sharingan can use Tsukyomi and Amaterasu. Tsukyomi is where the opponent is tied to a wall and four Itachis pop up and each one by one stab the person against the wall. At the end, all of them stab at once. Ameterasu is black fire that makes you think you are being burned.
Kisame Hoshigaki
Powers: This blue colored fellow has a sword named Sharkskin that can only be used by him. If somebody else tries to use it, spikes come out of the handel. He also can control water not only with ninjutsu but with his sword as well.
Sasori
Powers: This crazy killer has puppets to use just like lady Chiyo and Kankuro. The strands of chakra connected to his fingertips control the puppet. If his most powerful puppet is destroyed, he will take off his cloak and show his true self.... AS A PUPPET! He can shoot both fire and water out of his hands. He has a poisonous spear in his chest and sharp, poisonous wings on his back. At that moment, he can summon 100 puppets at once. By then, he is invincible.
Deidara
This Akatsuki is made out of clay. He may not look like it, but he is. He has mouths on his hands which chew clay into a masterpeice like a small bird and/or dragon then they turn into giant ones that are esplosive. If he uses a jutsu called Masterpeice Explosion, you and about an area as large as a city is going to be wiped out.
Kakuzu
Powers: For on thing, I have no idea how but Kakuzu here can turn his hands pitch black so if he punches something, it will most likely explode. Another thing is, he has stitches all over his body.....EVEN ON HIS MOUTH! Thats why he wheres a mask. He can make those stitches pop open and under it, his own flesh and bones are made out of hair tentacles. There is a form which is called Shinzu Form where his mask comes of and hair comes out of his mouth with all the stiches on his body pop open and hair tentacles cover most of his body. At that point, three masks come out of his body. One blows searing fire, the other blows cutting wind, and the last one spits out mind blowing lightning. With this, he is unstopable. Oh, and he is immortal by having five hearts!
Hidan
Powers: This one is also immortal by worshipping this "God" named Jashin. If somebody cuts off his head, he will still be talking and living and all that stuff. His power is by having a Syth or a long spear, if you spill only a little blood, and he licks it, he will make a symbol out of blood(it just looks like a circle with a triangle in the middle) and uses some type of voodoo so if somebody hurts him or tries to kill him while he is in the symbol, it will hurt or kill the person's blood he licked. He can also hurt or try to kill himself in the symbol and it will do the same effect.
Tobi
Powers: All Tobi can do is throw bombs and all, but when he comes in his form he is powerful. For more details about his powerful form, look below.
Madara Uchiha (This is Tobi's powerful form)
Powers: Either through the mask Tobi wears or no mask at all, he posesses a powerful sharngan which I do not know what it is called, but I do know what it does. It does a blackhole effect and sucks mostly any living thing that looks at his eye is in a mirage where they are thinking that they are getting sucked in his eye and ripped into a million peices but outside the mirage, they are really just having a panick attack.
Zetsu
Powers: This "CREATURE" is a body with two minds. It is a Fly Trap Plant connected to a human body. It can summon other plants and eat people eho have died. It is Pain's most reliable helper and has watched every huge battle there has ever been. He can also blend in with anything by getting inside it.
Konan
Powers: This is the only female Akatsuki other than one of the six paths of pain. As a girl, she loved oragami, and so she became oragami. Her power is to change herself into paper and give you what I call Paper Gashes. One of her most powerful move is she grows angel wings wraps you in paper and throws a giant paper needle at you while saying "Shikigami Dance!"
Pain
Powers: Other than having six different versions of him, he can summon almost everything and has a power called Almighty Pushes and Pulls. Almighty Pushes and Pulls is a force of air he has summoned to make you come toward him and get away from him. His last form of power is to have long sharp peircings to stab people with.