Introduction: Lars Qvortrup: Introduction - Welcome into the Interface.- Section 1: Avatars and Agents in Computerised Theatre: Lars Qvortrup: Introduction. Jens F. Jensen: Virtual Inhabited 3D Worlds. Interactivity and Interaction between Avatars, Autonomous Agents, and Users. Peer Mylov: Three Types of Multimedia Interactions - and Beyond. Torunn Kjolner and Niels Lehmann: Uses of Theatre as Model. Discussing Computers as Theatre - Some Additional Perspectives.- Section 2: Construction of Interactive Life-Like Agents and Actors: Erik Granum: Introduction. Michael Mogensen: Agents: Dependent Autonomy and Transparent Automatons? Mikael B. Skov: Enhancing the Usefulness of Community Chat Rooms: Application of Autonomous Agents. Peter Bogh Andersen and Jorgen Callesen: Agents as Actors. M. Wibroe, K. K. Nygaard and P. Bogh Andersen: Games and Stories. Claus B. Madsen and Erik Granum: Aspects of Interactive Autonomy and Perception. Peter Bogh Andersen, Erik Granum and Claus B. Madsen: Discussion.- Section 3: Verbal and Non-Verbal Interaction with Virtual Worlds and Agents: Patricia Paggio: Introduction. Thomas B. Moeslund: Interacting with a Virtual World through Motion Capture. Patrizia Paggio and Bradley Music: Linguistic Interaction in Staging - A Language Engineering View. Costanza Navarretta: Exploiting Recent Research on Dialogue to Model Verbal Communication in Staging. Berit Holmqvist: Interactive Systems.- Section 4: Interactive Narratives: Soren Kolstrup: Introduction. Soren Kolstrup: Different Narratives, Different Theories for Different Media. Jorgen Stigel: The Limits of Narration. Jens F. Jensen: Film Theory Meets Interactive 3D. A Film Theoretic Approach to the Design and Analysis of 3D Spaces. Edvin Vestergaard Kau: Shapes of Meaning. On Action and Content in Unreal Worlds. Hanne Dankert and Niels Erik Wille: Constructing the Concept of 'The Interactive 3D Documentary' - Film, Drama, Narrative or Simulation?.- Section 5: Methods for Designing Interactive, Inhabited Virtual Worlds: Kim Halskov Madsen: Introduction. Bjarne Horn, Ernest Holm Svendsen and Kim Halskov Madsen: Experimental Design of an Interactive Installation. Mikael B. Skov and Jan Stage: Using Software Engineering Approaches to Model Dynamics in Interactive Software Systems. Peter Ohrstrom: Time Logics in Interactive Multimedia Systems. Claus A. Foss Rosenstand: Management in the Narrative Multimedia Industry.