Mark Castillo

Mark Castillo is Assistant Director of the University of Pennsylvania’s International Relations Program. He teaches INTR-3500, “Research Methods in International Relations.” His work focuses on American political history. Before completing his doctorate at Penn, he earned postgraduate degrees from the University of Edinburgh and the Department of War Studies at King’s College London. He has authored and taught three iterations of INTR-290-602, “Secret Intelligence in American Democracy, 1776–present,” and, alongside Frank Plantan (former co-director of the IR Program), has co-taught “Counterintelligence.” He is completing a book manuscript, Disunion in Crimson: The Higher Education of the Irrepressible Civil War, under contract with Fordham University Press.