Cassandra Cain is a fictional character in the DC Comics Universe, one of several who has served as Batgirl, an important character in the Batman comic book franchise. Cassandra's backstory presents her as the daughter of assassins David Cain and Lady Shiva, she was deprived of speech and human contact during her childhood as conditioning to become the world's greatest assassin. Consequently, Cassandra grew up to become an expert martial artist while simultaneously remaining mute, developing very limited social skills, and being illiterate. Cassandra first appeared in Batman #567 (July 1999) and was created by Kelley Puckett and Damion Scott (though it was Alex Maleev who designed her costume). Cassandra was the first Batgirl to star in her own ongoing Batgirl comic book series. An Asian American, she is also the first non-white member of the Batman family and remained one of the most prominent non-white superheroes until she was replaced as Batgirl by Stephanie Brown in a 2009 storyline. She returned in late 2010, where she was now shown working as an anonymous agent of Batman in Hong Kong before adopting the new moniker of Blackbat.