Ken Kesey’s countercultural novel One Flew Over the Cuckoo’s Nest. As Nurse Ratched, who instils fear into the patients in a mental institution without ever raising her voice, she was calmly terrifying. The part had shades of the panto villain about it, but Fletcher permitted vital glimpses into the human control-freak beneath this worthy exterior, notably in her standoffs with Jack Nicholson as the rebellious anti-hero McMurphy.