Theatre, fundamentally, makes things appear. Philosophy, fundamentally, makes things appear. Philosophy is at work in all disciplines. The issue is less about bringing them together but rather articulating the fact that they, like science and art, have never been truly apart. Theatre has been gradually increasing its theoretical articulation over decades, fascinated by the possibility of transforming thought into spectacle.The essays collected in this volume address these issues from wide-ranging perspectives and approaches. They arise from meetings of the Theatre, Performance and Philosophy working group at the 2005 and 2006 conferences of TaPRA (Theatre and Performance Research Association), and from papers presented under the auspices of CTPP (Centre for Theatre, Performance and Philosophy) at Aberystwyth University.