|Portrayed by:||Diana Muldaur|
|Appears in:||5 Episodes|
|Leslie Thompkins Gallery|
Leslie Thompkins attended medical school along with Thomas Wayne and Matthew Thorne, and they remained friends well after they completed their education. She then moved to Park Row, and saw the neighborhood deteriorate over the years. After Thomas and Martha Wayne were shot in Park Row, Leslie consoled the young son of her friends. Bruce and Leslie became close friends over the years. In fact, Leslie was one of the few people that Bruce trusted with the knowledge of his secret identity as Batman.
Leslie became indirectly involved in Batman's adventures on a few occasions. Examples include, when she was kidnapped by Rupert Thorne's men and forced to render medical aide against her will and when Batman was blinded in an accident and she treated him. Leslie also managed the Thomas Wayne Memorial Free Clinic , a free clinic for the poor which Bruce had setup in memory of his father. She was also the one Batman turned to when he needed medical attention that went beyond the abilities of himself or Alfred.