Alexandra Kosov works for Black Mask. Introduced in the War Games story Arc, she became head of the Odessa Mob (Russian organised criminals in Gotham City) when her father was killed in a fire-fight that sparked a subsequent gang war. Following this she fell in line with Black Mask and helped orchestrate the "Alamo High Massacre."
Alexandra has only one good eye and one bionic eye. She is an accurate shot with and adept in the use of a variety of firearms.