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Dressed in white robes, this ANBU captain tried to direct his fellow ANBU during the invasion of Leaf by Sound and Sand. Though he arrived near the Third Hokages location quickly, he was unable to reach him in time to get through the barrier the Four Sounds created. Because of that, he and his fellow ANBU had to watch the battle between Orochimaru and the Third Hokage without being able to lend assistance.

The ANBU captain and his partners later interrogated Naruto when Gennou, the master trap layer, came to Konoha and then fled. He and his men were determined to find out what Gennou was doing in their village.

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After Uchiha Madara swayed Sasuke to his side, he sent the young man after this Bijuu. They eventually found the Cloud ninja training in the mountains. The man is marked by a tattoo of "iron" on his shoulder and bull horns on his cheek. He wears sunglasses and wields eight swords. Upon reaching his location, the Jinchuuriki's Bijuu-form tail-tentacles retracted to his body and he left to meet his guests. As he emerged into the daylight he cursed the bright sun.

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This monk was one of the few survivors of Hidan and Kakuzu's rampage through the Fire Temple. When the two Akatsuki members came looking for a Jinchuuriki, Chiriku and the other monks tried to defend the Temple. Almost all the monks died, and the elder had the grave job of telling Sarutobi Asuma that Chiriku had fallen in battle to the duo. The monk then offered his prayers for Asuma as he left to go track down the Akatsuki duo.

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This Jinchuuriki was defeated in battle by Kisame, who chose to take him on solo. Kisame admired his strength and powerful elemental fusion jutsu.

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The elder toad foresaw the coming of a young boy to Myouboku Mountain. This boy was Jiraiya and the toads taught him their jutsu. Some years later the toad asked Jiraiya to again come before him. He foresaw that Jiraiya would one day become a great pervert and travel the world. He also saw that Jiraiya would train an apprentice, one who would either bring destruction or peace to the world. The toad believed that Jiraiya alone would decide which fate befell the world. It is unclear whether the toad himself is still alive, leadership of the toads apparently changed to Gamabunta some time after.

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He and his two teammates were killed by Orochimaru. His identity was then assumed by an unknown Sound agent. Hidden Leaf Chuunin Examiners eventually found their faceless bodies, alerting Mitarashi Anko that the Legendary Sannin Orochimaru had returned.

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He and his two teammates were killed by Orochimaru. His identity was then assumed by an unknown Sound agent. Hidden Leaf Chuunin Examiners eventually found their faceless bodies, alerting Mitarashi Anko that the Legendary Sannin Orochimaru had returned.

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The Sand ninja that appeared in this form during the Chuunin Exam was actually an illusion technique of two of the Four Sounds acting undercover. When the invasion of Leaf began, this ninja revealed himself to be two Sound ninja. After the invasion was over, Baki and other Sand ninja found the original guards body in the desert along with the dead body of the Kazekage. They had been killed by the Sannin Orochimaru some time before the start of the Chuunin Exam.

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The Sand ninja that appeared in this form during the Chuunin Exam was actually an illusion technique of two of the Four Sounds acting undercover. When the invasion of Leaf began, this ninja revealed himself to be two Sound ninja. After the invasion was over, Baki and other Sand ninja found the original guards body in the desert along with the dead body of the Kazekage. They had been killed by the Sannin Orochimaru some time before the start of the Chuunin Exam.

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Pa and Ma served under the elder toad and did their best to help refresh his memory when he forgot simple things. In this position they met Jiraiya and helped his training, including teaching him how to enter "Sennin Mode". This was a jutsu power-up which granted the Leaf ninja heightened toad powers. The couple told Jiraiya he could enter the mode on his own, but he still preferred to summon them to his shoulders so they could all fight together. In this mode all three could offer their own power and jutsu in any fight. The three together could thus combine their jutsu for even more powerful attacks. The couple was aware of Jiraiya's destiny and helped him in his battle against "Pain," who was once his student Nagato. Though the couple spent a lot of the time bickering. The couple used their binding Genjutsu melody to help stop Pain, though Ma was embarassed at having to sing.

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This man was tasked with delivering Sai's top secret mission orders. He chastised Sai for carrying around possessions which reminded him of his past. He reminded him of Root's purpose, of supporting the great tree of Konoha from the depths of the earth.

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He and his partner served under Pain. Their faction fought for control of the Rain Country in its secretly ongoing civil war. While travelling through an industrial city in the country, the two men saw signs for a new bar. Seeking protection from the rain, the two men went inside. The bar was a trap though, as Jiraiya quickly captured and interrogated the men as to their leader's whereabouts.

Jiraiya interrogated the men inside one of his toads and used his infamous tickle-torture to get them to talk. Unfortunately, the ninja refused to give out any information. Jiraiya then used his Kaeru Kaeru technique to turn the man into a frog in the hopes of scaring his partner into talking. The method worked and Jiraiya eventually sent his toad and the transformed ninja back to Ibiki for further interrogation.

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He and his partner served under Pain. Their faction fought for control of the Rain Country in its secretly ongoing civil war. While travelling through an industrial city in the country, the two men saw signs for a new bar. Seeking protection from the rain, the two men went inside. The bar was a trap though, as Jiraiya quickly captured and interrogated the men as to their leader's whereabouts.

Jiraiya interrogated the men inside one of his toads and used his infamous tickle-torture to get them to talk. Both men refused to give out any information. Jiraiya then used his Kaeru Kaeru technique to turn this man's partner into a frog in the hopes of scaring him. The plan worked and the ninja explained how they knew little of Pain, the rebel leader they saw as a "god." Jiraiya was unable to gather anything more substantial and used his Toad Flat Shadow Control Technique to further infiltrate the Rain village by controlling this man from his shadow. Jiraiya was then confronted by Konan who forced him to drop his puppetry. The missing-nin referred to Konan as the "Angel of God" and then fled.

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This individual was used as a sacrifice to take on the form of Hoshigaki Kisame in the Akatsuki leaders Shouten no Jutsu. This was an image changing technique which allows an Akatsuki member to take control of the body and use it as if it was their own. The sacrifice would change to look like the member and utilize however much chakra the member was willing to donate to them. The body essentially would become the Akatsuki member. This allowed Kisame to fight Gai and his team from a remote distance without their knowledge.

Kisame fought Gai and managed to imprison Neji, Lee and TenTen. Gai was forced to open several gates and used his Asakujaku technique to pummel "Kisame" and defeat him. In the rubble the body lost its appearance and revealed to Gai that they had not actually been fighting Kisame at all.

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Kabuto's Genin team were all actually spies for Hidden Sound. It is unknown whether their Jounin master was also a Sound spy.