“Everyone Is A Great Actor” is a doctoral dissertation of the author Deric Gan who studied drama at the Central Academy of Drama. The book proposes a brand new doctrine “Life Performance Studies”. Life performance studies is non-ontological but a practical performing arts discipline that combines multiple interdisciplinary courses, such as sociology, anthropology, psychology, and natural sciences, from the functional perspective of applied drama. It is applicable to any individual in the social class who is interested in improving personal qualities and abilities. “Life Performance Studies”