: Debuted in 1956 as a romantic interest for Batman. Her character was eventually written out in the 1960s but has been reimagined in modern stories as a former spy. Abilities & Training

There have been two primary versions of the character in comic book history:

: The tech-savvy son of Lucius Fox who assists the Bat-team.

: A high-level security agent and Kate's former love interest. DC Comics Character History

: Kate’s twin sister and leader of the Wonderland Gang.

: Reintroduced in 2006, she is a Jewish, lesbian heiress with a military background. She was famously discharged from West Point under "Don’t Ask, Don't Tell" after refusing to deny her identity.