Taji

was an Anbu, and medical-nin of Konohagakure.

Background
Taji was assigned to aid Biwako with delivering Kushina Uzumaki's baby, making her one of the few people to know of the special conditions surrounding the delivery. However shortly after the delivery, both women were killed by a masked man.

Appearance
Taji had shoulder-length brown hair and eyes. When she assisted with Naruto's birth she was seen wearing a standard medical outfit which consisted of a high-collared outfit with a poufy hat.

Abilities
As a member of the Anbu, Taji was presumably a skilled kunoichi. Her being a medical-nin indicates great chakra control and knowledge about medical ninjutsu in general. The fact that she was chosen to assist in a top-secret and highly risky delivery furthermore indicates her skills in that area.