Randle McMurphy is a fictional character from the novel One Flew Over the Cuckoo's Nest by Ken Kesey. He is a rebellious and charismatic man who fakes insanity to serve his sentence in a mental institution rather than in prison. McMurphy's arrival disrupts the oppressive environment of the ward, challenging the authority of Nurse Ratched and inspiring other patients to assert their individuality. Throughout the story, McMurphy embodies themes of freedom and resistance against conformity. His interactions with fellow patients, including Chief Bromden, highlight the struggle between individuality and institutional control. Ultimately, McMurphy's character serves as a symbol of defiance and the human spirit's desire for liberation.