Ellen Yin
Ellen Yin is a reccuring detective in The Batman. She was once the head of the police department in Metropolis but moved to Gotham for new challenges. Yin is a career cop at the top of her game, simple and by the book. She is as physically adept at as any male cop she knows, and has proven to be skilled in hand to hand combat. She was initially assigned as a partner to Ethan Bennett.
She was voiced by Ming Na Wen who is well known for voicing Fa Mulan.