The Minds of Billy Milligan

Main Characters and Their Development

• Billy Milligan - the main character of the book, a man with identity disorder, with 24 different personalities coexisting within him. The story revolves around his life, arrest, and trial. Billy starts as a troubled young man suffering from the consequences of interacting with different personalities within himself and ultimately comes to awareness and acknowledgment of his condition.
• Arthur - one of Billy's personalities, a British strategist and leader. Responsible for protecting the system of personalities from external threats.
• Allen - the second primary personality, more calm and rational, responsible for everyday affairs.
• Tommy - a ten-year-old boy, one of Billy's personalities, interested in magic and illusions.
• Ragen - a guardian personality, emerging in moments of deep anger or when the system is threatened.
• Adalana - the only female personality in the system, possessing great empathy and femininity.
• David - an eight-year-old boy, the keeper of pain, taking on all physical pain.