Thursday, May 24, 2007 - If Darth Vader were a real person, what would a psychiatrist say about him? Mental health experts in France have studied the famous "Star Wars" character and have diagnosed him with "Borderline Personality Disorder." In its severity, the disorder is characterized by  mood instability, anger management problems and intense fear and paranoia of loved ones abandoning them. Experts say the disorder is a very real problem for many people.