Fan Casting Cassandra "Wu-Sun" Cain in Cassandra Cain

Rina Sawayama as Cassandra Cain: A former League of Assassins student who can predict her enemies' movements by reading their body languages. Cassandra is a kung-fu master and carries a katana. Her birth name, "Wu-Sun", was called to the League of Assassins by her father, as they chose her to be the "One Who Is All", but is nonetheless a rogue assassin due to her morally righteous views in justice. Mei Nagano portrays a teenage Cassandra.