Cassandra Cain

Cassandra Cain (also known as Cassandra Wayne) is a fictional superheroine appearing in American comic books published by DC Comics, commonly in association with the superhero Batman. The character was created by Kelley Puckett and Damion Scott, first appearing in Batman #567 (1999).

She is one of the world's greatest martial artists, and a vigilante acting as a member of the Batman Family. She is the daughter of assassins David Cain and Lady Shiva and was bred to become the perfect killer and taught fighting as her first language, without ever learning to talk. She later rebelled against her father and became Batgirl during No Man's Land following Barbara Gordon and Helena Bertinelli. She later adopted the alias Black Bat, as a member of Batman Incorporated, and Orphan, a name previously used by her father, before returning to Batgirl during Joker War. She has been a member of Justice League Elite, the League of Assassins, the Outsiders, Deathstroke's Titans East, Young Justice, the Gotham Knights and Birds of Prey.