Dr. Leslie Thompkins
From Stephanie Brown Wiki
Originally thought to have killed Stephanie by purposeful lack of medical attention, Dr. Thompkins actually faked Stephanie's death and set her up with a new identity in Africa to protect her. Stephanie, however, eventually insisted on going back to Gotham.
This was revealed in Robin #174.
The Robin/Spoiler Special showed that the two had spent Steph's "missing years" vaccinating small African villages and had grown very fond of each other. However, Stephanie jumped into a makeshift costume to save the village from a gun toting fanatic named Katavi who managed to shoot Leslie in the side. Stephanie rushed Leslie to a hospital and saved her life, but decided to go back to Gotham and keep being the Spoiler afterwards, realizing she couldn't change who she was. She told Leslie she "could never repay her."
Leslie is currently back in Gotham and running her own clinic, with paralyzed former Teen Titan Wendy Harris in her care.
