Description: (Psychiatrist, screenwriter)
Hervey Milton Cleckley was a renowned American psychiatrist recognized for his groundbreaking contributions in the realm of psychopathy. His seminal work, The Mask of Sanity, introduced a clinical depiction of psychopathy, expanding the definition to encompass individuals exhibiting harmful behaviors devoid of obvious signs of psychosis or neurosis. Cleckley's examination of a female patient, which was later adapted into the film The Three Faces of Eve, helped popularize the diagnosis of multiple personality disorder in the United States. His impact endures through concepts such as antisocial personality disorder and the Psychopathy Checklist.