Diagnosing Jack Nicholson

The Character: George Hanson
The Diagnosis: Alcoholism and addictive personality
The Symptoms: Impulsive and self-destructive decision to travel with two drifters. Drinks alcohol like water, smokes marijuana, and takes LSD.
The Prognosis: Hanson believes he was born to be wild -- seeks out trouble.

Easy Rider, Peter Fonda and Jack Nicholson, 1969. Courtesy of the Everett Collection.