Hatake Kakashi

Kakashi Hatake (はたけカカシ) is a jōnin-level shinobi from Konohagakure and the leader of Team 7. He is known worldwide for his use of the Sharingan, earning him the moniker Copy Ninja Kakashi (コピー忍者のカカシ, Kopī Ninja no Kakashi) and Kakashi of the Sharingan.
Kakashi is the son of Sakumo Hatake, also known as the "Konoha's White Fang". His mother apparently died when he was young. Kakashi has been known since a young age as an extremely gifted prodigy, regarded by many as the best of his generation. He had received top marks and had shown an innate aptitude for the ninja arts while in the academy. This permitted him to graduate from it in a single year at the top of his class at the age of 5, and then becoming a chūnin a year later. 

Kakashi was teamed with Obito Uchiha and Rin under the leadership of Minato Namikaze. At the age of 13, soon after becoming a jōnin, Kakashi was assigned to lead Obito and Rin on a mission that would benefit Konoha in the ongoing Third Shinobi World War. Knowing his life was at an end, Obito instructed Rin to implant his left Sharingan into Kakashi's damaged eye. Rin complied, and as soon as the surgery was completed Kakashi used the Sharingan and his Chidori to kill Kakkō. He then returned to Obito to see if there was anything he could do for him, but the place was turning into shambles, forcing Kakashi and Rin to leave him behind.

Personality


Kakashi became more stern and serious following his father's death, following all the rules and scorning any who disobeyed them, like his team-mate Obito Uchiha. This caused Obito to resent Kakashi, as Kakashi showed little kindness to his team-mate. This changed when Obito was mortally wounded in a mission, and Kakashi and Obito became friends in the latter's final moments.
Obito's death had a huge impact on Kakashi's personality. He is now more cheerful and shows greater concern for his team-mates and students, placing their safety over the successful completion of a mission, as well as believing that teamwork is essential to overall success as a team.
Kakashi has a rather solitary and matter-of-fact attitude. His calm and detached demeanour has been called "cool, hip, and trendy" many times by Might Guy. Despite his increasingly growing reputation and prowess as a ninja, Kakashi has shown no signs of arrogance, and is rather modest about his abilities, as shown when he readily praises others for leaps in their combat abilities and stating on more than one occasion that Naruto has surpassed him in power.

Abilities

Kakashi is a natural genius, evidenced by the speed he rose through the ninja ranks; he graduated from the Academy at age 5, becoming a chūnin at age 6, a jōnin at 13, and had a long tenure as an ANBU. During his career he has amassed a technique arsenal of over a thousand different techniques, making him Konoha's expert in the field. His various accomplishments have earned him much praise by his fellow Konoha ninja and he holds a position of great influence. Pain was so concerned by Kakashi's abilities that he tried to kill him for fear that he would someday interfere with Akatsuki's plans. This concern was later validated in the Fourth Shinobi World War when Kakashi and Guy together managed to hold off several "Version 2" state jinchūriki by themselves.
In Part II, Naruto notes that Kakashi is smarter than Shikamaru Nara, a better sense of smell than Kiba Inuzuka, a better taijutsu performance than Rock Lee, and has better Sharingan mastery than Sasuke Uchiha. Kakashi has proven himself to be an intelligent ninja with great instincts and battle prowess, making him a match for any opponent. His skills also improve between Part I and Part II: in Part I he has difficulty keeping up with Itachi Uchiha's speed, but by Part II he is able to match a clone of Itachi in combat despite it having only a portion of the original's strength. Similarly his chakra level has increased; in Part I he is only able to use the Lightning Cutter four times a day, but in Part II has been seen using it at least six times in one battle and still having enough chakra to plan on using the Mangekyō Sharingan. Kakashi is also able to summon a pack of ninja hounds to aid him in battle or for other supplementary purposes. 

Kakashi's most distinguishing ability is his Sharingan, a gift from his late friend Obito Uchiha, as it allows him to copy nearly any technique used against him, see through any deception, give hypnotic suggestions, perform genjutsu, and predict his opponent's movements. However, because Kakashi is not of Uchiha blood, using the Sharingan demands a great deal of chakra. During the time skip, Kakashi further improved his Sharingan by developing his own Mangekyō Sharingan through undisclosed means. With it he can perform Kamui, a technique that sucks everything within a small area to another dimension.

Uzumaki Naruto

Naruto Uzumaki (うずまきナルト) is the title character and main protagonist of the series: Naruto. He is a genin from Konohagakure, a member of Team Kakashi, and the third and current jinchūriki of Kurama, the Nine-Tailed Demon Fox. Naruto was born as the son of the Fourth Hokage, Minato Namikaze, and Kurama's second jinchūriki, Kushina Uzumaki. Naruto's parents named him after the main character of Jiraiya's first book, thus making the Sannin his godfather.

When Naruto first met Sasuke Uchiha in the Ninja Academy, they were matched to spar against each other. Naruto was excited at the opportunity to defeat Sasuke and become so popular like him, however he was easily beaten. By looking at Sasuke's eyes, Naruto realised that they were filled with hatred.

 Personality

Due to the prejudice and loneliness he suffered in his childhood, Naruto developed a craving for acknowledgement. In order to achieve this, Naruto would pull pranks all around the village and even going far as strive for the title of Hokage. Even after graduating from the academy, Naruto was still determined to be recognised, but as he made more and more connections with others, his reasons for wanting to become Hokage underwent a change, having less to do with the desire for recognition, and more to do with wanting the strength to protect his home and the people close to him. As noted by Tobi, Naruto is a fervent believer in the Will of Fire, likening him to Hashirama Senju in this respect.

 According to Kakashi, Naruto learns through his body, as he is relatively naive, simple, and being slow to understand a principle or situation, which often requires an oversimplified analogy in order to grasp what is being explained to him. When the situation calls for it or when someone dear to him is in trouble, Naruto can be very serious, and will instantly try to come to their aid. This is most commonly seen in the series through his interactions with his team-mates, Sasuke Uchiha and Sakura Haruno. With Sasuke, Naruto views him as a brother, and throughout Part II strives to bring him back to Konoha.

Abilities

At the start of the series, one of the only techniques Naruto could do without fail was the Transformation Technique, and his own original variant of the technique called the Sexy Technique; a creative but almost completely useless diversionary technique, used simply to shock his instructors. Throughout Part I he learns a number of short-range techniques, which are expanded upon during his two-and-a-half years of training with Jiraiya. Naruto also improves his knowledge of other ninja skills while under Jiraiya's tutelage, using more taijutsu and ninja tools than he did in Part I. He also learned how to dispel genjutsu and despite his limited skill with it he was able to resist being put to sleep by Itachi Uchiha. During Part II, he starts to master longer-range techniques, such as the Wind Release: Rasenshuriken, Mini-Rasenshuriken, chakra arms, and Tailed Beast Ball.

 As Kurama's jinchūriki, Naruto is gifted with its enormous supply of chakra and stamina, to which Kakashi estimated it to be a hundred times greater than his own when its influence is not suppressed.
Although Naruto had trouble with the Clone Technique at the start of the series, he quickly learned how to use jōnin-level techniques, like the Shadow Clone Technique and its large-scale version.
Naruto was first taught how to use the Summoning Technique by Jiraiya. After allowing Naruto to sign the summoning contract with the toads of Mount Myōboku, Jiraiya took Naruto through the execution of the technique in order to provide Naruto with allies in future battles. Additionally, Jiraiya's other motivation to teaching Naruto how to summon was to help Naruto to realise and take advantage of Kurama's chakra.
Created by the Fourth Hokage and taught to him by Jiraiya, the Rasengan is Naruto's second and strongest signature technique. While the Rasengan is a one-handed technique, Naruto required the use of two to form it due to his poor chakra control, thus using a clone to form the "shell" of the sphere. Despite this, Naruto has used the Rasengan effectively in almost every one of his fights after mastering it. The Rasengan holds an advantage over its counterpart, the Chidori, in only requiring chakra control to form, while the Chidori uses so much chakra that it can only be used a few times a day. Naruto had learned nature transformation to upgrade his Rasengan, which he achieved with the Wind Release: Rasengan and the Rasenshuriken, combining peak levels of both shape and nature manipulation originally deemed impossible without natural talent or instinct. The Rasenshuriken was capable of slicing into the victim and cutting them at a cellular level faster than a Sharingan can see it.
After Jiraiya's death at the hands of Pain, Naruto began training with Fukasaku in Mount Myōboku to learn senjutsu and how to enter Sage Mode. In order to achieve this, Naruto had to learn to sense and control the natural energy around him. Once mastered, Naruto was able to perfect the Rasenshuriken, so that he could throw it, and learn Frog Kata, a taijutsu style that uses the natural energy around the user to enhance the range and the potency of their attacks. In Sage Mode, Naruto's overall physical abilities are dramatically enhanced.