Films/TV with middle aged female black villains?

I just noticed the new Robocop film and new Gotham TV show both have a middle aged black lady villain. I also hear a rumor that the Ann Leckie sci-fi novel series Ancillary may be made into a show which will have an older black woman as the villain. Seems like a refreshing change seeing as normally they are warm and wise Oprah/Whoopi types. Not that I think they are bad, but I liked seeing people in new interesting types of roles. Normally old British men like Alan Rickman are bad guys.