These definitional ambiguities notwithstanding, research on successful psychopathy has at last begun to keep pace with clinical speculation (Smith, Watts, & Lilienfeld, 2014). In this article, we offer a scientific status report on successful psychopathy. Recognizing that most psychopathological constructs are “open concepts” marked by fuzzy boundaries (Meehl, 1986), we adopt a relatively expansive operationalization of success that includes either short-term or long-term accomplishment, as well as behaviors that profit either the individual or society.