9. Nurse Ratched (One Flew Over The Cuckoo's Nest)
As many of us already know, Nurse Ratched is one of the greatest movie villains of all time, and so much has been said about Louise Fletcher's outstanding performance. One could say that since she's a villain, why would romance matter? There are so many female villains who are sexual in nature, from the Queen in the various incarnations of Snow White, to Selina Kyle in Batman, to the Borg Queen in Star Trek, to Mila Kunis's Wicked Witch of the West in Oz the Great and Powerful. Nurse Ratched is one who stands on her own as absolutely terrifying without having to hint at any such suggestions. From beginning to end, she is fueled by her own intricate, personal and, unfortunately, very human underlying motivations.