Nurse Ratched

Nurse Mildred Ratched is the main antagonist of the late Ken Kesey's 1962 novel One Flew Over the Cuckoo's Nest and its 1975 film adaptation of the same name, as well as the eponymous protagonist villain of the 2020 TV series Ratched. She is the cold, sadistic head nurse of the Salem Oregon State Hospital, where she dominates her patients into submission with iron discipline and cruel punishments. She is also the archnemesis of Randle P. McMurphy, a free-spirited patient who refuses to bend to her will.

Personality
Nurse Ratched is portrayed as a cruel, power-hungry sadist. She is a formalist who strongly believes that the best thing to do is to have patients conform to a schedule. Nothing will make Nurse Ratched stray from schedule and routine, even the death of a patient (which she does to prevent utter chaos amongst other patients). She has no tolerance for rule-breakers, especially people who are openly sexual. Ratched is very calm and uses her knowledge of other's weaknesses to make them submissive and obedient. She initially acts quiet and reassuring, but can turn stern when a disorderly patient persists. She dislikes every form of disorder, from rebellion to untidiness. She wears a black overcoat and a black barrette outside of work. In the book, she is perceived by a paranoid patient, Chief Bromden, as unfeeling, manipulative, and working for an oppressive society ("The Combine").