It is not possible to determine who the first actor was, as theater and acting have existed for thousands of years across various cultures and regions of the world. Historical evidence suggests that theater originated in ancient Greece, where actors performed in festivals and theatrical productions as early as the 5th century BC. However, theatrical performances and storytelling existed long before this time, and it is likely that acting as a form of entertainment and communication emerged in many different cultures independently. Therefore, it is impossible to pinpoint one individual as the "first actor."