Here we go..
Borrowed directly from good ol' wikipedia... -.*
* Ururu Tsumugiya
Ururu is a meek, black-haired girl who mostly does manual labor for the shop, as well as assisting Urahara in training Ichigo. She is Karakura Pink in Don Kanoji's superhero team and uses a multi-barreled shoulder cannon as her weapon. She seems to respond robotically when injured or when hollows initially appear. Jinta also mentions that she reacts to strange spiritual presences, such as those of arrancar. During such times, Ururu seems to take on a rather simplistic view of right and wrong. She considers those that cause harm (relative to her) as enemies, and believes that enemies must be eliminated.
Ururu's meek attitude is somewhat at odds with her fighting ability, which is undefined, but quite high (Urahara vaguely mentions that her fighting ability is at an "anti-shinigami" level). Her leg-strength in particular is far greater than it should be, even when compared to Kon while he's in Ichigo's body. Her combat skills are shown when she gives the arrancar Ilfort Grantz a devastating kick to the head while he is fighting with Renji Abarai, overpowering him to the point that he is forced to release his zanpakutō. In the anime, she also delivers a powerful kick to Sawatari's giant whale doll, Baura. Aside from her melee combat skills and boxing gloves, her primary weapon appears to be a shoulder-mounted missile launcher. She uses it several times in the series; for example, she once used it to try and take out a small group of hollows forming a menos grande and again to dispatch a group of hollows attacking Yuzu Kurosaki.
* Jinta Hanakari
Jinta is a small, red-haired boy who is supposed to do manual labor for the shop, such as cleaning, but usually slacks off and forces Ururu to do all the work. He desires to be a baseball star and is Karakura Red (fighting for the position with Karin Kurosaki) in the team of Karakura Superheroes led by Don Kanonji. He seems to have a crush on Yuzu Kurosaki, calling her "The Goddess." This is shown in the omake chapters after the anime episodes when he gives her discounts at the shop and treating a good-luck charm she gave him as an extremely important possession (it was really Kon's plushie body tied to a string, which caused a fight between the two over it during a soccer game). Jinta, like the other shop members, appears to be old and wise when he isn't fooling around. While he likes to constantly bully Ururu, he does care for her, shown when he recovered her body after she was wounded by the arrancar Ilfort Grantz. Also like Ururu, he displays powerful fighting abilities comparable to those of shinigami, though not to the same extreme degree that she does. His primary weapon is an oversized iron rod, similar to a Tetsubo.
* Tessai Tsukabishi
Tessai is a large, muscular man who always wears an apron. It is unclear what work he does for the shop, but he is Urahara's personal assistant in both business-related and other matters. Tessai is extremely skilled in kidō, shown by his use of a level 99 binding spell, possibly the most difficult of them. He is also shown to have great physical strength, made apparent by his ability to smash a hollow's head to pieces with a single, open-palmed thrust. He is also fiercely proud of the shop; this is shown when Orihime Inoue praises the shop basement, finding it really cool, and Tessai bursts into tears when thanking her. When Soifon refers to the shop as "pokey," his instant reaction is irritation and he has to be subdued by Urahara. He is known to buy TV displayed medicines, much to Urahara's chagrin. He is also among the few who find Orihime's food tasty, the other being Rangiku Matsumoto. Tessai is over 200 years old, as he tells Rukia that the word "Quincy" "brings back memories" from that long ago.
Sooooo... In my thoughts... Ururu is one of Urahara's creations.. be it a mod-soul or something along those lines.. Jinta is most likely a human, possibly an orphan like some have speculated.. whom Urahara has trained to some degree.. and Tessai.. most likely a former squad member of Urahara's squad considering his age, probably Vice-captain.. left SS after Urahara's banishment.. that's true devotion people..lol
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