Rukia Kuchiki (朽木 ルキア, Kuchiki Rukia) is the current Captain of the 13th Division. She formerly served as lieutenant of the 13th Division under Captain Jūshirō Ukitake. Rukia is the younger sister of the late Hisana Kuchiki, the sister-in-law of Byakuya Kuchiki, the mother of Ichika Arabai, and also a friend of Ichigo Kurosaki. She is voiced by Michelle Ruff in the American English dub, who also voiced Aoi Sakuraba in Ai Yori Aoshi, Cream the Rabbit in Sonic the Hedgehog series, Crimson Viper in Street Fighter series, Zoe Orimoto in Digimon Frontier, Luna in Sailor Moon franchise, and Yoko Littner in Gurren Lagann.
- Show yourself, Kakashi Hatake. I know you're following me... again!
- (Homura Akemi: You must join me in fixing time, Rukia.) And commit us to a dark future, Homura? (Homura Akemi: Our sacrifice will save our friends.)
- (to Homura Akemi, while referring to Kyubey) Kyubey sends you against me? (Homura Akemi: He's the future's only hope, Rukia.) Kyubey lies, Homura.
- Unnamed father (deceased)
- Unnamed mother (deceased)
- Hisana Kuchiki (older sister, deceased)
- Byakuya Kuchiki (brother-in-law)
- Renji's father (father-in-law, deceased)
- Renji's mother (mother-in-law, deceased)
- Renji Arabai (husband)
- Ichika Arabai (daughter)