While the earliest character representations in video games were rudimentary in terms of their presentation and performance, the virtual characters that appear in games today can be extremely complex and lifelike. These are characters that have the potential to make a powerful and emotional connection with gamers. As virtual characters become more intricate and varied, there is a growing need to examine the theory and practice of virtual character design. This book seeks to develop a series of critical frameworks to support the analysis and design of virtual characters.