Identity Status: Secret
Aliases: The Nothing, Batgirl, Cassandra Cain
Nationality: Asian American
Maritual Status: Single
Occupation: Reformed Assassin/Under-cover operative
Last Known Residence: The Factory
Kasumi is a reformed assassin whose skills are legendary amongst the underground; said to have killed 200 people by the age of 16. While it is unclear whether or not Kasumi actually exists, the one that entered the Justice League Elite was actually Batgirl (Cassandra Cain), posing as Kasumi to keep a check on the experimental team; a spy inserted by Batman (Bruce Wayne). With Green Arrow (Oliver Queen) acting as her backup, Cassandra secretly delivered annual reports to Batman on the team’s progress.
Sticking rigidly to her sense of responsibility and, under her disguise, redemption, Kasumi’s self discipline attracted the attention of Coldcast (Nathan Jones) as a brotherly influence for her on the team as it began to fall apart. When Coldcast was accused of murdering a captured dictator in cold blood, Cassandra insisted on his innocence and, after the team was disbanded due to Manchester Black’s return, Cassandra infiltrated Coldcast’s prison to break him out and face Black before he destroyed the planet.