Sasori

Background
When Sasori was young, his father and mother were killed by Sakumo Hatake, leaving him with no one but his grandmother, Chiyo, to take care of him. To cheer up Sasori, Chiyo began to teach him the art of making puppets. He began making puppets at the age of five, and even made puppets that resembled his parents to get rid of the terrible loneliness he felt. But because they were only puppets, incapable of giving him the natural parental love he desired, he lost interest in them. They later fell into Chiyo's possession. Sasori proved to be a born natural at the art, even devising masterful ways of eliminating a puppet master's weakness.

Sasori created many ingenious puppets, including the ones that were owned by Kankurō. During the Third Shinobi World War, these puppets were used so successfully, they dyed the sand red with blood. This gave rise to the name Sasori of the Red Sand.

Sometime after leaving the village to complete an A-ranked mission, Sasori joined Akatsuki, and was eventually paired with Montoro. They had great respect for each other during their partnership, and did many things together; Sasori was presumed to have taught his partner how to manipulate others like puppets, and Montoro in return lectured him on using the Wind element, granting Sasori access to a range of useful techniques.

Appearance
Without his puppet armour he maintains the appearance of a teenage boy with wide brown eyes, and short red hair. As a child, he wore green robes with a pale jacket around them. As a member of Akatsuki, he was mostly seen in the organization's signatory robe.

On his left thumb was his Akatsuki ring, which bears the kanji for. Sasori also wore teal nail polish. Even though he possessed a headband from Sunagakure that was slashed out, he was never seen wearing it.

Personality
As a child, Sasori always seemed sad, due to the lack of parental love. When introduced to the art of puppetry by his grandmother, Chiyo, he grew a little happier. He eventually created puppets with the likeness of his parents, but when the puppets couldn't give him the parental love he desired, he became cold and aloof. This led to him having little regard for human life, and he went so far to state that he would feel nothing if Chiyo died, as he claimed that his heart had become like his puppet body: without any emotions. Despite his cruelty, Sasori also had been shown to possess a very down-to-earth outlook on life, rarely growing worked up over obstacles that came his way. He also rarely showed any extreme emotions, and even these instances were short-lived. Also worthy of note is that he was willing to accept other people's views on certain topics.

Puppet Master
Being trained by his powerful grandmother, Chiyo, in the art, Sasori was a master of puppetry and had great skill in both creating and controlling them. He created a number of ingenious puppets; while in Sunagakure he created the three puppets that Kankurō used, and had 298 other puppets in his personal collection. His status as a master puppeteer offered him a tremendous advantage against other puppeteer shinobi, especially if the puppets they were using happened to be formerly his own, as seen in his battle against Kankurō. As puppets are usually installed with long-range weapons, Sasori was an expert at fighting at long distances. Sasori can also control living people as puppets, even against their will, if they are weakened enough. His usage of puppets were at such a high level that he made mere techniques appear as an artistic performance, what he called his "Red Secret Technique".

Human Puppetry
Sasori's puppets were unique in that they were made from the still-living bodies of humans. These human puppets were more versatile than regular puppets, since, in addition to having many dangerous devices installed within them (as is common with regular puppets), they were also able to use chakra and perform jutsu. Any jutsu or kekkei genkai abilities possessed by the converted human were also passed onto the puppet.

Hiruko
Hiruko is the only unique puppet to be shown being used by Sasori. Sasori occasionally wears this puppet as an armour and weapon, and controlled it from the inside, thus eliminating the puppeteer's weakness of being a separate and exposed target. While within Hiruko, Sasori has a deeper and more hoarse voice. Hiruko is his favourite puppet.

Hiruko has a long mechanical, scorpion-like tail (an allusion to Sasori's name meaning "scorpion"), extending from the mouth of what appeared to be a demon mask on its back. Chiyo said this mask was a recent addition by Sasori to add extra defence to a weak point in the puppet. The tail worked as Hiruko's main offensive weapon, and is laced with his poison. The tail is also used as an extra defence by spinning it around his body at a rapid speed. Hiruko's left arm is rigged with a projectile launcher capable of firing poisoned shrapnel and needles, and its mouth can also be used to serve a similar function of firing poisoned needles.

Intelligence
Repeatedly, Sasori has demonstrated to be a highly cunning ninja, able to handle situations with various traps and misdirection. He is also shown to be a highly analytical man, able to quickly determine his opponent's strengths and combat methods. Like his grandmother, Sasori has a great knowledge of the human body, as shown from his brainwashing jutsu and his mastery over creating different types of poisons. His unique poisons, that he laced nearly every weapon in his arsenal with, took effect instantly, and one such poison could kill the target after three days of suffering.

Trivia

 * means "scorpion".
 * Sasori had the same birth date as Masashi Kishimoto.
 * Additionally, his birth date (November 8th) makes Sasori's Western astrological sign Scorpio, the scorpion.
 * In the first poll he was in (the 6th overall poll), he placed 6th on the list. In the second poll he was in he placed 8th.
 * According to the databook:
 * His hobby is remodelling his puppet collection.
 * Sasori rarely consumes food.
 * Sasori had completed 72 official missions in total: 5 D-rank, 12 C-rank, 16 B-rank, 29 A-rank, 10 S-rank.
 * Sasori's favourite phrase was "Eternal beauty".
 * All of Sasori's puppets wear the same clothing: black cloak with a ruffled neck area. The exception goes to his Red Secret Technique: Performance of a Hundred Puppets, of which the cloaks they wear are red. Also, Sasori and Hiruko themselves wear the Akatsuki robes instead.