Jacob Kane

Commander Jacob Kane is the head of Crows Security and a former USSOCOM colonel of the United States Army. He is the brother of the late Martha Wayne, the father of Kate and Beth Kane, the widower of the late Gabi Kane and the husband of Catherine Hamilton-Kane, the maternal uncle of Bruce Wayne, and the step-father of Mary Hamilton.

Early life
Jacob was born in Gotham City into the Kane family and had an older sister, Martha.

In his youth, Jacob became an uncle when Martha married Thomas Wayne and had a son, Bruce Wayne. Sometime afterwards though, his sister and brother-in-law were both killed in a mugging.

On his daughters 12th birthday, Jacob was unable to come due to being on a mission that day.