Stephen A. Diamond, PhD, is an American clinical and forensic psychologist, a former pupil and protégé of Dr. Rollo May, and notable author of Anger, Madness, and the Daimonic: The Psychological Genesis of Violence, Evil and Creativity. His work focuses on the psychological topics of anger, violence, evil, mental illness, and the daimonic.

Stephen A. Diamond, PhD, is an American clinical and forensic psychologist, a former pupil and protégé of Dr. Rollo May, and notable author of Anger, Madness, and the Daimonic: The Psychological Genesis of Violence, Evil and Creativity. His work focuses on the psychological topics of anger, violence, evil, mental illness, and the daimonic.