The 'Matrix: Revolutions' star will play Fish Mooney, a sadistic gangster boss and nightclub owner in the one-hour drama, reported the New York Daily News.
'Southland' veteran Ben McKenzie has been cast as Gordon, Sean Pertwee is on board as Wayne Manor butler Alfred Pennyworth and Robin Lord Taylor is signed on as Oswald Cobblepot
The 42-year-old actress, who is the wife of Will Smith, has a loads of TV experience and was last seen in 'Hawthorne'.