Christopher J. Hopwood, PhD, is Professor of Personality Psychology at the University of Zurich, Switzerland. Dr. Hopwood is Associate Editor of the Journal of Personality Assessment and the Journal of Psychopathology and Clinical Science, and Editor-in-Chief of the journal Psychology of Human-Animal Intergroup Relations. He is the 2018 recipient of the Theodore Millon Grant in Personality Psychology from the American Psychological Foundation, among other honors. Dr. Hopwood's research interests include personality assessment and development, interpersonal processes, psychopathology, and human-animal relations.

Carla Sharp, PhD, is John and Rebecca Moores Professor of Clinical Psychology and Associate Dean for Faculty and Research at the University of Houston, where she is also Director of the Adolescent Diagnosis Assessment Prevention and Treatment (ADAPT) Center and the Developmental Psychopathology Lab. Dr. Sharp holds adjunct positions at University College London in the United Kingdom and the University of the Free State in South Africa. Her work has significantly advanced scientific understanding of personality pathology in youth. She is a recipient of the Mid-Career Investigator Award from the North American Society for the Study of Personality Disorders and the Award for Achievement in the Field of Severe Personality Disorders from the Borderline Personality Disorder Resource Center.