Infinite Earths story line, Betty Kane was retconned out of existence. Mary Elizabeth "Bette" Kane is a reinvented version of the Betty Kane character during the Silver Age. As her original characterization was retconned out of existence during the Crisis on Infinite Earths story line, a discrepancy arose where her Bat-Girl character had joined the West Coast version of the Teen Titans, but simply disappeared. The character was reintroduced as Bette Kane and the alias of Flamebird. Following Infinite Crisis, the character's past as Bat-Girl was hinted at as being a part of continuity. However, that reference included a revamped origin of the character and it may or may not have been the current Bette Kane. Barbara Gordon During the run of the Batman television series, DC editorial was approached about adding a female character back into the Batman family. Revising the character history and motivation, Julius Schwartz created Barbara Gordon. This character held the role of Batgirl from 1967 to 1988 when she was retired by DC editorial decision. The character's role was changed to a paraplegic source of information for all members of the Batman family and codenamed the "Oracle". She was later restored as Batgirl during The New 52 relaunch of the entire DC publication line in 2011. This was also the case with the DC Rebirth relaunch (2016). After the suicide of her psychopathic brother James Gordon Jr., Barbara ponders her role as Batgirl, becomes the Oracle again and continues to support the Batman family behind the computer screen, with the option to occasionally return to the role of Batgirl. Above all, she takes on the role of mentor for Cassandra Cain and Stephanie Brown, who now share the title of Batgirl. Cassandra Cain During the No Man's Land story line, Cassandra Cain was given the role of Batgirl under the guidance of Batman and the Oracle. Written as the daughter of assassins David Cain and Lady Shiva, she is trained from early childhood to read human body language instead of developing verbal and written communication skills as part of her father's conditioning to mold her into the world's deadliest assassin. However, after committing her first murder, she vows to never again use her martial-arts prowess to kill. In 2000, she became the first Batgirl to star in an eponymous monthly comic book series, as well as one of the most prominent characters of Asian descent