Colonel Jacob Kane is the father of Kate Kane and Beth Kane. Colonel Kane played an important role in his daughter's Batwoman operations, until Batman and the Gotham Knights team had to bring him in after a mysterious group called The Colony, led by Kate's father Jacob Kane, began hunting down Gotham's heroes.
A lifelong soldier, Jacob had been a field officer with USSOCOM for most of his career, leading numerous tactical operations across the globe as part of the 3rd Special Forces Group. His wife Gabi Kane was a Captain with the 525th Battlefield Surveillance Brigade. Both Kanes worked extensively with military intelligence services. The Kanes often moved due to the nature of Jacob and Gabi's work. Jacob was frequently away from home, since his duties included intervention in various international military crises.
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History
FIRST APPEARANCE: Detective Comics #854 (August, 2009)
FIRST APPEARANCE (POST-FLASHPOINT): Batwoman #1 (November, 2011)