Missing Ninja are ninja who have deserted their villages and became wandering ninja. Some leave their village in search of power while others for personal reasons. Some join other villages while other join organization. Many missing ninja are considered S-Rank because of their power. Each village have their own Ninja Hunters. Their main goal is to hunt down Missing Ninja and dispose of their body.

Deidara

Deidara Rank: Jounin
Village: Hidden Rock Village
Deidara is a missin' nin from the Hidden Rock Village. His Akatsuki partner is master Sasori, who he reports who. He's an art ninja. He uses clay and mix with his chakra then mold the clay into birds or doll and use them as explosive.

Kabuto Yakushi

Kabuto Yakushi Rank: Unknown
Village: Hidden Leaf Village
Formerly trained as a ninja from the Hidden Leaf Village and the son of a medical ninja, Kabuto eventually reveals that he is actually a spy for the Village Hidden in the Sound. Kabuto is also called Orochimaru's right hand man. Once a subordinate of Sasori but Orochimaru remove the cursed on him. Currently spying on Akatsuki and plotting revenge on Konoha.

Kimimaro Kaguya

Kimimaro Kaguya Rank: Unknown
Village: Hidden Mist Village
From the Kaguya Clan, Kimimaro was the only survivor of the clan after the clan attempted to take over the Hidden Mist Village. Because of his special bloodline limit, Orochimaru took Kimimaro in, thus, Kimimaro left the Hidden Mist Village and joined the Hidden Village of Sound. As of then, Kimimaro devoted his life to Orochimaru. But was killed by Gaara's sand.

Kisame Hoshigaki

Kisame Hoshigaki Rank: S-Rank
Village: Hidden Mist Village
Once apart of the Seven Swordsman from the Hidden Mist Village. Kisame left the Mist Village after he started assassinating feudal lords. He joined Akatsuki after he fled the Hidden Mist Village. Still searching for the Kyuubi with Itachi.

Itachi Uchiha

Itachi Uchiha Rank: S-Rank
Village: Hidden Leaf Village
After killing everyone member of the Uchiha Clan to see what he could be capable of, Itachi left the Hidden Leaf Village and joined Akatsuki. He return to Konoha later on in an attempt to capture the Kyuubi in Naruto. The motive as to why he killed everyone in his clan is still a mystery. His search for the Kyuubi continues.

Orochimaru

Orochimaru Rank: S-Rank
Village: Hidden Leaf Village
Orochimaru left of the Hidden Leaf Village due to many incidents. While stealing some medicines for his kinjutus, Orochimaru was caught by Sarutobi. Another reason for Orochimaru's departure was that Sarutobi chose the Fourth (Yondaime) over him to become the next hokage. He's currently training Sasuke in underground Hideout.

Sasori

Sasori Village: Hidden Sand Village
Sasori killed the Third Kazekage and turn him into a puppet. He then left the Sand Village for twenty years and join Akatsuki. He also had a subordinate by the name of Kabuto, spying on Orochimaru. He was eventually killed by Sakura and Chiyo.

Sasuke Uchiha

Sasuke Uchiha Rank: Genin
Village: Hidden Leaf Village
Seeking power to avenge his brother Itachi, Sasuke left the Hidden Leaf Village and sought Orochimaru for powers. He is currently being train by Orochimaru in many underground hideout and has learn new jutsu and his Sharingan is more powerful.

Zabuza Momochi

Zabuza Momochi Rank: Unknown
Village: Hidden Mist Village
After an attempt assassination on Mizukage failed, Zabuza left the Hidden Mist Village and went to the Wave Country. We was killed attempting to protect Haku.