Mónica Marie Zorrilla Sarah Paulson, who portrays the titular nurse on Netflix’s “Ratched,” recalls feeling unusually depressed shortly after shooting the psychological thriller. There was something — or rather someone — she couldn’t shake: Mildred.“Not to make it sound overly precious, but it’s like a great violinist playing an instrument when an actor is using themselves and their body and their hearts and their vulnerabilities to bring their full selves to a project,” Paulson says.