Batgirl
Batgirl is the name of several fictional superheroines appearing in American comic books published by DC Comics, depicted as female counterparts and allies to the superhero Batman. The character Betty Kane was introduced into publication in 1961 by Bill Finger and Sheldon Moldoff as Bat-Girl, and was replaced in 1967 by Barbara Gordon, who became the most iconic Batgirl. The character debuted in Detective Comics #359 by writer Gardner Fox and artist Carmine Infantino, introduced as the niece/adoptive daughter of police commissioner James Gordon.
