Hybrid simulation comes in many shapes and forms. It has been argued by many researchers that hybrid simulation provides a better insight of the system in hand as it allows modelers to assess its inherent problems from different dimensions. As a result Hybrid Simulation is becoming an important field within the Modeling and Simulation arena. Yet we find that there no clear and cohesive definition for it. Therefore, this panel paper aims to explore the concept of Hybrid Simulation and its progression through the years. In doing so, we hope to lay out the underpinnings of a structured Hybrid Simulation approach by providing historical narratives of the origins of hybrid models; the current challenges expressed by scholars; and future studies to ensure more focused development of a comprehensive methodology for Hybrid Simulation