Some of the most famous "psychopaths" didn't make the cut. Patrick Bateman in "American Psycho," Gordon Gekko in "Wall Street," Norman Bates in "Psycho," and Hannibal Lecter in "Silence of the ...

Psychopaths are probably most famous for their signature trait: a lack of empathy. But to count as a psychopath someone needs to have a lot more problematic traits than that. For example ...

Gagne discusses the difference between sociopaths and psychopaths, traits of famous characters like Wednesday Addams and Dexter, and how to talk to loved ones about sociopathy. She's a former ...