Udon (ウドン) is the friend of Konohamaru and Moegi. He is in the Genin-team led by Ebisu. He seems to have a perpetually runny nose and seems to be very sleepy. Udon states many times that he loves math, as he is usually seen writing math problems during class. Udon idolizes Sasuke Uchiha, stating that if he was lucky enough he would be just like Sasuke. "Udon" is also a type of Japanese noodle. (Source: Narutopedia)
Kushina Uzumaki is a ninja of the former Land of the Whirlpool. She had a son, Naruto Uzumaki, with the Hokage of the time, Minato Namikaze. She is noted to have had a brash, tomboyish demeanor, long red hair, violet eyes, and as time passed, blossomed into a very beautiful woman. Despite Naruto's close resemblance to his father, much of his personality and choice of ninjutsu are said to be similar to that of his mother's. She is presumed to be dead, as she is described in past tense. Her face is shown in a couple slides as she is talking with Jiraiya and Minato Namikaze. In this part of the manga Jiraiya is lying on the ground while having flashbacks. In his flashbacks he is with Minato and Kushina as they are naming their unborn child "Naruto".
A steel Akikan who came from a melon soda, owned by Kakeru. She's competitive and strong-willed, which was the reason why she was always having a fight with Kakeru. Although she likes her owner she cannot express her feelings well, which ends up telling opposite of what she wants to say. She likes watching baseball matches, even with midnight telecasts, though she has stated she has no clue on how the game is played. She basically hates Aluminum Akikans and is always having small quarrels with Yell. She mostly uses carbon dioxide based cool drink sorcery in battle.
Represents the Miyagi prefecture.
She sacrificed herself in order to seal away M�ry�. Miroku wanted Shion to live a normal life and prevented her from learning about her true powers, and as such prevented her guards from teaching Shion any ninjutsu. But to protect her daughter, she left Shion a special bell which allows Shion to foresee her own death in the future and be able to prevent it. However, to save Shion's life, another one must usually be sacrificed in her place.
Gamabunta speaks like a yakuza gangster who won't work with anyone he doesn't respect. Despite this, he is fiercely protective of his children and Naruto, and will fight for their safety regardless of his respect for the summoner (or, more likely, whether or not Jiraiya is on his good side).