Kate Kane

"But in the years following the crisis, accounts only grew more contradictory. Some eyewitnesses remember dozens of other heroes present, including Green Arrow, Batwoman, and Elongated Man."

- Iris West-Allen's article on Batwoman's involvement in the 2024 crisis

Kate Kane is a vigilante known as "Batwoman".

Biography
At some point Batwoman became a vigilante known to the public. She established partnerships with such superheroes as Green Arrow, the Flash and Elongated Man.

At some point after John Deegan altered reality, Batwoman stood on a clock tower in Gotham.

Batwoman was involved in the events of 2024, when the Flash battled the Reverse-Flash before disappearing from the timeline. Different witnesses claimed contradicting versions of the events (whether the Flash was assisted by Supergirl and the Atom, or a team of Green Arrow, Batwoman and Elongated Man).

Behind the scenes

 * In the main DC Comics continuity, Kate Kane is a superhero known as Batwoman affiliated with the Bat-Family. The character originated as Kathy Kane in 1956 and was a recurring love interest of Batman's until she was retired from the comics in the mid-1960s; she later returned in the 1970s but was killed off. In 2006 a new version of the character, now named Kate Kane and reimagined as being openly gay, was introduced in the post-Infinite Crisis continuity. The original version of Kane, however, was also reintroduced in 2011's Batman Incorporated series. The Arrowverse version of Batwoman is based upon the 2006 reimagining.