He argues that the stage appropriated debates over demonic possession to explore the competing roles of the inner life and the body in early modern definitions of selfhood. The theatre also employed the contemporary controversy over possession and exorcism to investigate the politics of religion, and to consider the nature of monarchic power. Moreover, because demonic possession cases and exorcism rituals were frequently dismissed by conformist writers as a piece of theatre, they offered an opportunity to reflect on the nature of drama and role-playing. JAN FRANS VAN DIJKHUIZEN is lecturer and research fellow at the University of Leiden.