At first I thought the title of an upcoming editorial to be published in the journal Psychiatry Research was a joke: "Is Anakin Skywalker Suffering from Borderline Personality Disorder?" But Dr. Eric Bui and his colleagues at Toulouse University Hospital in France are not kidding around; they propose that Anakin Skywalker (from the Star Wars movies; this is the guy who becomes Darth Vader) demonstrates six of the nine diagnostic criteria for BPD. They cite his difficulties with anger, impulsive behavior, apparent dissociation, and identity difficulties as examples.
Dr. Bui and his colleagues also suggest that the popularity of the Star Wars movies may be in part due to the ability of teenagers to relate to Anakin (since there is evidence that adolescents have BPD symptoms more frequently than adults). They also suggest that Anakin's diagnosis may be one way to educate the public about BPD. But, I'm not so sure that having BPD associated with Darth Vader is very helpful to anyone!