Nurse Ratched
Nurse Ratched (full name Mildred Ratched in the movie, also known as "Big Nurse") is a fictional character and the main antagonist of One Flew Over the Cuckoo's Nest, first featured in Ken Kesey's 1962 novel as well as the 1975 film adaptation. A coldhearted and passive-aggressive abuser, Nurse Ratched has become the stereotype of the nurse as a battleaxe, as well as a popular metaphor for the corrupting influence of institutional power and authority in bureaucracies such as the psychiatric treatment center in which the novel is set.