Author's Note: This is just to show everyone how far I go to research all characters (and potential characters) in my story. I refer a hundred times back to documents like these while planning out dialogue. So please respect my constant research and all of the effort that I put into my fanfics. And you may use this as a reference if you wish

Deidara:

-Short tempered

-Infatuation with art

-Can recognize stronger opponents, such as Itachi

-Appears to be very vengeful (e.g. wanted to kill Itachi after beating him)

-Respects Sasori as a fellow artist

-19 years old

Sasori:

-35 years old

-Cold and aloof

-Little regard for human life

-Rarely showed extreme emotions, even if he does, it is very short lived

-Impatient, yet doesn't like to keep others waiting

-Little to no respect for Deidara and his view of art

-Something worthy of note, he seems to accept other beliefs, unlike Deidara who is stubborn.

Tobi:

-Claims to be Madara Uchiha, but this is proved false during the Fourth Shinobi War when Madara is resurrected

-Known to be a master of deception and is a bringer of ill things

-Prior to claiming to be Madara, he is happy-go-lucky and goofy

-Kisame notes that Tobi can brighten up any gloomy situation

-His true personality is calmer and he still has a habit of disrespecting others and joking around

-Extremely arrogant, sees members as tools and not team members

-Not above praising his enemies, but does return to his arrogant persona quickly

-Counters his infamous manipulation by claiming that others "acted on their own free will"

-Seems to be delighted when he causes Sasuke to hate Konoha even more

-Has grown increasingly more aggressive and sadistic throughout the series

-Told Naruto that he was "miserable" and that he has "no one" and he has "nothing" except for the desire of world domination

Zetsu:

-Most loyal to Tobi

-Has a "split personality" the black half is serious while the white half is carefree, the sides somehow manage to work effectively however

-Seems to be very trustworthy, he is trusted with Pain and Tobi's true identities

-Appears to love money, shown when he quotes Kakuzu's saying about money

-Works solo usually, he travels around spying and when an Akatsuki member dies, he is sent to eat their bodies and dispose of the evidence

-Shown to be very respected, members will report back to him rather than report back to the leader, holds a superior position to the average member

Kakuzu:

-Seemingly 91 years old

-Tends to be very greedy, doesn't do anything if there is nothing to gain and will go to great extents to make a profit

-Often kills his partners because of his short temper, leading him to be paired with Hidan

-Collects bounties to earn a profit, claims to have "forgotten" enemies if there was nothing to gain from them

-Seems to respect intelligent opponents, such as Kakashi

-Doesn't like Hidan because of his cult-like religion and his fighting style, but both work together perfectly when the need be

-Appears to follow orders very well, but when angered he disobeys orders

-Has an obsessive nature

Kisame:

-32 years old

-Loves to fight and is very analytical in battle. He can't fight much with Itachi, however, as the latter only fights when necessary

-Very loyal to Itachi, despite differences, he always asks Itachi for permission to kill someone and genuinely cares about his well being

-Seemed to be saddened by Itachi's death and even thought of Itachi during his last moments alive

-Very gullible, he believes in Tobi's "world without lies" and even commits suicide in order not to reveal any information

Itachi:

-21 years old

-Intentions of joining the Akatsuki was to spy from it on the inside

-Apparently a pacifist and swore to protect his little brother, effectively doing so by killing his clan which was planning to overthrow the Hokage

-While in the Akatsuki, he appeared to be emotionless and showed extreme self control

-After he is resurrected, he is shown to have a sense of humor and even makes verbal jabs at his little brother

-Noted to his extreme intelligence and wisdom, even by Tobi

-Encourages Naruto to never forget his friends and to try to bring Sasuke from the dark side

Hidan:

-22 years old

-Claimed to be one of the most foul-mouthed and disrespectful characters of the series, contrary to being "religious"

-Does not give due respect to their leader, only member to do so

-Somewhat of a sadist, takes pleasure in making his opponents' death as painful as possible. He considers killing a "religious calling"

-Behavior in the anime bordered on insanity, he was seen shrieking loudly as he attacked his opponents and laughed maniacally when he killed his opponents.

-He is very arrogant, and doesn't appreciate Kakuzu's help in battle, except for when he requests it. Kakuzu returns the favor by saving Hidan "late" and allowing him to be wounded, but not dead.

Pain:

-Calm, serious, aloof and detached

-Considers the only way to peace is to give the world pain

-Respectful of the dead and encourages all Akatsuki members to get along

-After his resurrection he is shown to be very carefree and even makes jokes, which surprises Naruto

-He compliments Naruto on his control over the nine-tailed fox as they both studied under the same master

-Constantly respective to his "angel", Konan

Konan:

-Stoic, calm and level headed

-Never spoke in Akatsuki meetings and she places the safety of her teammates above her own

-The most empathetic of the Akatsuki members, even saddened when reminded of her past

-She has complete faith and loyalty in Pain and his abilities, she does his will without question

-She protected Pain's corpse from Tobi and almost sacrificed herself to protect it

-Apparently protects Naruto fiercely, as Pain had entrusted his wish of peace in Naruto