Background
Doctor is known for her interesting methods of crime; she will save one life, but kill whoever gets in her way, typically with scalpels or other medical tools. She also has an expertise with chemicals such as tranquilizers. She also alludes to the idea that she gives more sexual favors in exchange for what she wants, displayed when she asks for a smoke from Courier and offers that he, "can have a go" while pressing against him.
Personality
The Doctor is a mad scientist who toys with people's lives for fun. She has a calm demeanor and tends to tease Courier. She has a habit of messing with her nails, and her favorite foods are wine and cheese.
Appearance
Doctor is a tall, beautiful woman with pink hair that fades to light blue at the tips, as well as having golden yellow eyes. She also wears glasses that have pink glass and black frames. Attire-wise, she dresses very skimpily, wearing a dark purple one-piece dress with a translucent pink corset around it that also acts as her skirt. She wears a white doctor's coat over this, a gold necklace in addition to her bomb collar and a black belt with a gold circle buckle. She tops this off with wearing thigh-high boots with high heels.
Abilities
The Doctor has shown so far that despite her sadistic tendencies, she possess immense natural talents and skills in the medical field that bordered on superhuman. This is seen where she was able to stitch up and close a deep throat wound inflicted on her by the Executioner and later upon being bifurcated across her waist and split into two, she was able to reattach herself back together despite a normal human being dying immediately from such a wound. The Doctor has also shown to be skilled in Surgery, First aid and the apparent skill to immediately reattach severed limbs, as seen where she reattached Cutthroat's legs. The Doctor has also showcased to have the skill to create Drugs and other chemicals, this is seen where she primarily fights by ambushing her opponents and injecting them with her syringes and showed to have other useful chemical compounds on her. Other than her skills in the Medical Field, the Doctor has also shown to possess some skill and experience in combat. This is seen where she apparently showed immense skill in using her scalpel to kill other people with precision and hold her own against Executioners.
(Source: Akudama Drive Wiki)
