Yamato has short brown hair and black, almond-shaped eyes. When he debuted, Yamato wore the standard attire of the ANBU, with a sword strapped to his back, a mask that resembles a cat's face covered in green, and red markings, and the ANBU tattoo on his left shoulder. When he meets up with Naruto, Sakura, and Sai for the first time, however, he has changed into a variation of the standard attire of a Konoha-nin, with a flak jacket. The differences between his attire and that of the standard one is that his does not have the Uzushiogakure crest on the shoulders of the sleeves, and the neck of his shirt is form fitting and goes up to his chin. He also still retains two hip pouches strapped to his lower back instead of just one, something typical of an ANBU. In addition to that, he has a happuri-style forehead protector that frames his face, similar to that of Tobirama Senju.
Yamato is a very discreet, cautious, careful and well prepared person. He projects a calm, stoic demeanor in stressful situations. Yamato also takes great interest in architecture which can be seen when he goes out on missions and creates a house to "camp out" in. This skill to incorporate his hobby with his kekkei genkai was also seen after the invasion of Pain where he was key in recreating the village. While he has been good-natured so far, Yamato claims to be a different sort of leader than Kakashi, one who is not above "ruling by the use of terror" when his team misbehaves.
Village of Birth: Konohagakure. Village of Alliance: Konohagakure.
-Taijustu B rank.
-Toads in training
-Signer of the Locust contract.
During his childhood, Yamato was abducted by Orochimaru and became one of sixty children that were his test subjects. They were injected with the First Hokage's DNA in the hopes that they could replicate the First's ability to use Wood Release, as well as an unquantified ability to control tailed beasts. Orochimaru later abandoned the experiment believing that none of them had survived, however, Yamato was the lone survivor, and found himself endowed with the First's abilities.
Yamato graduated from the Academy at the age of six, and at that same age, was promoted to the rank of chūnin. He later joined the ANBU, and, for a time, served under the guidance of Kakashi Hatake. Yamato would also come to have the best performance record of any ANBU serving under the Third Hokage, leading the Fifth Hokage to have the utmost confidence in him.
Sasuke and Sai Arc
Yamato was assigned to lead Team 7 in meeting with one of Sasori's spies within Orochimaru's ranks. Naruto and Sakura found it difficult to work with their newest team member, Sai, and much of Yamato's time was spent trying to get them to cooperate. Upon arriving at the arranged meeting place, Yamato went ahead dressed as Sasori, to make meeting with the spy easier. After the spy arrived, who turned out to be Kabuto Yakushi, Yamato was able to learn a great deal of information until Orochimaru showed up. Just as Yamato started to contemplate how he would fight Orochimaru whilst keeping up his act as Sasori, Kabuto cut off the head of the Sasori costume, having hoped to kill the real Sasori.
Faced with a combined attack from Kabuto and Orochimaru, Yamato created a wood clone to escape, causing Orochimaru to realise that one of his test subjects had survived. A battle between Orochimaru and Naruto ensued, and Yamato spent much of his time protecting Sakura. When the battle was over, Sai was found to be missing, although a wood clone that Yamato had following Sai revealed that the latter had joined with Orochimaru. As the clone followed Sai to Orochimaru's hideout, the rest of Team 7 followed the clone. Once they arrived, Yamato used his Wood Release abilities to infiltrate the base. When they eventually found Sai, they restrained him, and were able to learn about Sai's real mission: to join forces with Orochimaru on behalf of his organisation, Root, in an attempt to destroy Konoha.
Sai was eventually freed by Kabuto, who in turn was restrained by Sai. Sai, touched by Naruto's words about Sasuke Uchiha, rejoined Team 7 in their other mission of retrieving Sasuke. When the group split up again, Yamato discovered a Bingo Book whilst going through some of Sai's belongings. In doing so, Yamato learnt that Sai once again had an ulterior motive: to kill Sasuke Uchiha. In desperation, Team 7 went looking for Sai, hoping to stop him from fulfilling his mission. Sai, however, had actually had a change of heart, and attempted to convince Sasuke to come back to Konoha on Naruto's behalf. Sasuke however ended up overpowering Sai.
Due to an explosive attack from Sasuke, Team 7 was able to find Sai and learn that he had really allied with them. Upon failing to persuade Sasuke to return to Konoha, the team decided to use force instead. Sasuke's growth, however, was too much for the four's joint effort, and he was able to repel them all. After a brief confrontation between Naruto and Sasuke, Yamato attempted to capture Sasuke with his Wood Release: Wood Locking Wall, although Sasuke was able to escape. As an answer to this, Yamato declared that he had no intention of getting too rough on him in front of Naruto and Sakura, but had no choice. Despite this, Sasuke prepared what appeared to be a finishing move. Orochimaru and a freed Kabuto arrived to stop him, however, and they disappeared, leaving Team 7 defeated which made them unsuccessful in their mission.
Hidan and Kakuzu Arc
Kakashi recruited Yamato to help with Naruto's training in creating a new technique. In addition to being able to create training devices for Naruto with his Wood Release abilities, Yamato was also able to subdue Naruto if he lost control of the Nine-Tails' chakra. Once Naruto completed the initial stages of his training, he moved onto perfecting his pre-existing Rasengan. Kakashi, however, was not able to oversee Naruto in these final stages, due to his volunteering to help Team 10 in the fight against Akatsuki. As such, he left Yamato in charge of the technique's perfection. Yamato was able to give advice in the technique's creation, and eventually bore witness to the fruits of Naruto's training.
Once Naruto had perfected his technique enough to be used in battle, Yamato, Naruto, and the rest of Team 7 joined Kakashi and Team 10. After teaming up with Naruto to stop an attack by Kakuzu, Yamato convinced Kakashi to allow Naruto to fight Kakuzu alone. Once Naruto was successful in defeating Kakuzu, Yamato joined everyone else in returning to Konoha.
Invasion of Pain Arc
When the invasion began, Yamato was away on a mission with Sai and Anko Mitarashi, trying to locate and capture Kabuto. Just when they located Kabuto, Yamato was alerted to the fact that Naruto had broken the seal he had placed on the First Hokage's Necklace, and was about to completely release the Nine-Tails with a seal appearing in his palm with the number of tails that Naruto had manifested. He rushed back to Konoha to try and stop Naruto, but was informed by Shikaku that Naruto was able to suppress the Nine-Tails' power on his own. He was later seen using his Wood Release: Serial Pillar Houses Technique to help rebuild Konoha, complaining that it put a lot of strain on him.
Five Kage Summit Arc
When Naruto states that he wants to meet with the Fourth Raikage, Yamato advises against it; leaving the village is forbidden because of the Kage Summit, Yamato can no longer suppress the Nine-Tails because of the First Hokage's Necklace's destruction, and Yamato needs to help with the village's reconstruction. However, Naruto manages to convince Kakashi, who forces Yamato to go too. Yamato plants a wood clone seed on Team Samui, allowing him, Naruto, and Kakashi to follow them to the Raikage in the Land of Iron. When Naruto is unable to sway the Raikage, even with his and Kakashi's support, the three of them rest at a local inn. Tobi confronts Naruto while there and Yamato and Kakashi, having expected him, try to restrain him. Their attempts do not work and, after telling them the truth about the Uchiha clan and Sasuke's current motives, he leaves.
Yamato repairs the damage he and Kakashi did to the inn. Soon afterwards Sakura arrives with Sai and tells Naruto that she loves him, shocking Yamato. However, as the event unfolds an angered Yamato tries to ask why she would say that, but was stopped by Kakashi before he could. As he watched and listened to Sakura's talk to Naruto, he could tell she wasn't telling the truth, and like Kiba, looked upon it both questioningly and disapprovingly. She leaves when Naruto says he doesn't believe her, after which one of Sai's ink clone's approaches them and tells them Sakura's plans to kill Sasuke. Before Kakashi can go to stop her, Gaara appears and tells them about the outbreak of the Fourth Shinobi World War and Danzō Shimura's actions during the Kage Summit. Because the other Kage would prefer Kakashi were Hokage, Yamato encourages him to comply. Naruto passes out shortly afterwards and Yamato is left in charge of looking after him while Kakashi finds Sakura.
When Naruto finally awakens, he tries to go after Sakura, but Yamato stops him and insists that they return to the village. Naruto asks to rest some more and Yamato lets him, unaware that Naruto is sneaking out, leaving a shadow clone behind so that he wouldn't notice. In the anime, it is shown that after realising that Naruto had escaped he hunts him down to the Samurai Bridge and captures him, but later releases him and returns to the village on his own.