Catherine Pelachaud is a Director of Research at CNRS in the laboratory LTCI, TELECOM ParisTech. Her research interest includes embodied conversational agent, nonverbal communication (face, gaze, and gesture), expressive behaviors and socio-emotional agents. She has been involved and is still involved in several European projects related to believable embodied conversational agents (IST-MagiCster, ILHAIRE, VERVE, REVERIE), emotion (Humaine, CALLAS, SEMAINE, TARDIS) and social behaviors (SSPNet). She is associate editors of several journals among which IEEE Transactions on Affective Computing, ACM Transactions on Interactive Intelligent Systems and Journal on Multimodal User Interfaces. She has co-edited several books on virtual agents and emotion-oriented systems.