Kisuke Urahara/Expanded Universe

is the former captain of the 12th Division, as well as the founder and 1st President of the S.R.D.I.. His lieutenant was Hiyori Sarugaki. He lives in the Human World where he owns a small convenience store which sells Shinigami items. He is assisted by his employees Tessai Tsukabishi, Jinta Hanakari, and Ururu Tsumugiya.

Bleach: Can't Fear Your Own World
Shortly after defeating Askin Nakk Le Vaar, Urahara, Grimmjow Jaegerjaquez, Yoruichi Shihōin, and Yūshirō Shihōin are rescued from the Sternritter's Gift Ball Deluxe by Nelliel Tu Odelschwanck. After recovering, Urahara proceeds to construct new bindings to imprison Sōsuke Aizen in Muken.

Powers & Abilities
Immense Spiritual Power: As a former captain of the 12th Division, Urahara boasts great amounts of spiritual energy. He is capable of fighting evenly with Aura Michibane, a Fullbringer with powers far beyond imagination, and casting the highest level Kidō in succession without tiring.

Kidō Master: Urahara's skill in Kidō allows him to cast '''Hadō #99. Goryūtenmetsu without incantation; shortly after already casting Hadō #91. Senju Kōten Taihō'''. As a true testament to his prowess in Kidō, he was entrusted to create bindings for restraining Sōsuke Aizen even after he became more powerful than his Hōgyoku-infused forms.

Artificial Soul Creation: Through a similar, but not identical means with Mayuri Kurotsuchi's Nemuri Project, Urahara created Jinta Hanakari and Ururu Tsumugiya, two Artificial Souls. By his own admission, they are "quite different" from Nemu Kurotsuchi, but have proven capable of easily defeating Hollows and even briefly fending off Arrancar.