Marc Cavazza is Professor of Intelligent Virtual Environments at the University of Teesside. His principal research interest is the use of Artificial Intelligence techniques for Virtual Environments. His most recent research projects were in Interactive Storytelling and the development of AI-based behavioural techniques for Virtual Environments. He has published over 150 refereed papers in the fields of Human-Computer Interaction, Virtual Reality and Artificial Intelligence. He has been an expert for the European Commission on the Information Society Programme continuously for the past ten years, for several Directorates. From 2002 to 2005, he was co-ordinator of the “ALTERNE” Project (www.alterne.info), one of the largest EU-funded projects on Virtual Reality Art. He is now principal investigator at Teesside for the DTI Technology Programme “BARDS” project on Interactive Storytelling, in partnership with Eidos Interactive plc. He serves on the programme committee of numerous conferences on intelligent agents and intelligent graphics, including ACM AAMAS 2006, ACM ACE 2006, Intelligent Virtual Agents 2006, the IFIP International Conference on Entertainment Computing, and Smart Graphics 2006.