Age: 16 Birthday: March 22 Height: 153 cm (5") Weight: 54 kg (119 lbs) Affiliations: 104th Trainees Squad, Military Police Graduation Rank: 4th Ranked 4th of the trainee class. A stoic girl, her father trained her in hand-to-hand combat. She's a solitary type, and solidarity doesn't come to her easily. She joined the Military Police under the reason that she only wishes "to survive." Annie is a Titan-shifter, and as such, it was revealed that she is the Female Titan who killed most of the Scouting Legion members during their 57th expedition. Annie was part of a group of Titan-shifters that initially aimed to wipe out the humans inhabiting the walls until the revelation of Eren's capability to transform into a Titan forced them to change their plans on capturing him instead. She is also the culprit behind the killings of the two captive Titans that Hanji was researching. As the Female Titan, she had attempted to kidnap Eren on numerous occasions, with the two even engaging in hand-to-hand combat in their Titan forms. She aims to capture Eren with the supposed goal of bringing him "somewhere." When she was suspected by Armin to be the Female Titan, the Scouting Legion had set up a trap to capture and interrogate her, though she was able to see through their plot which resulted in her attempting to escape. Mikasa and Eren manage to stop her from escaping, and when the soldiers tried to bring her out of her Titan form, reminded of her father, she wrapped herself inside a hard crystal thus making the soldiers unable to obtain any information from her. Though she is affiliated with Bertolt and Reiner, she tends to isolate herself from her fellow Titan-shifters. Despite her callousness and brutality in physical combat, she has shown genuine concern and respect towards her past classmates, notably Eren and Armin. Despite her seeming disinterest toward her own combat skills, Eren has deduced that she has a great fondness for it, as evidenced by her showing interest in further teaching him her techniques. As the Female Titan, she has the unique ability to generate a hard crystalline substance to protect/cover specific parts of her body. (Source: Wikipedia) Note: Annie Leonhart is the official English translation by Kodansha.
Including spoilers. Yashamaru (夜�丸) was a medic-nin, the younger brother of Karura, and thus the uncle of Gaara. At first, Gaara thought that he was the only one that cared about him. Yashamaru taught Gaara about physical pain, emotional pain and love; concepts Gaara was completely unaware of in his childhood. He was commanded by the Fourth Kazekage to assassinate Gaara, but was given the choice in deciding whether he wanted to proceed or not. Yashamaru willingly accepted the command in order to avenge his older sister's premature death. The assassination attempt, however, ended in a desperate suicide mission and ultimately failed. Before he died, he told Gaara that no one had ever really loved him, not even him. This left Gaara even more of an emotional wreck than he already was. His suicide bombing attempt on Gaara's life caused Gaara to become somewhat psychotic. Yashamaru's last words, to Gaara, were "This is it. Please die." Later though, when Gaara meets the fourth Kazekage it is revealed that all Yashamaru had said during his assassination attempt on Gaara was part of his orders from the fourth Kazekage and that he actually cared about Gaara, as did Gaara's mother. (Source: NarutoWiki)
Shigure is a rain Genin from Amegakure. He specailises in using his Chakra control to use needles hidden in umbrellas. Shigure and his team had the unfortunate luck of confronting Gaara's team during the Chunin Exam. Shigure sought their scroll and underestimated Gaara's power. Shigure attempted to use his sprinking needles technique but Gaara's sand protected him. Gaara then took the opportunity to confine Shigure and his team using the desert coffin technique.
A genin from Hidden Rain, Oboro specializes in genjutsu along with his teammates Mubi and Kagari. They are bested by Naruto in the Forest of Death and lose their scroll. They later reappear as hired henchmen attempting to sabotage a race in the Tea Country, only to be bested by Naruto once again.
Kagari (�) is a Genin from Amegakure. (Source: Narutopedia)
Baiu (�イウ) was a Genin from Amegakure. (Source: Narutopedia)
Tobio (トビオ) was in the same graduating class as the members of Team 7. He accidentally knocks into Naruto, causing Naruto to kiss Sasuke. (Source: Narutopedia)