In a mobile stage system, a pair of hydraulic actuators at each end of the stage, in combination with certain structural elements, provides all of the necessary movement to transition the mobile stage system from the transport position to a deployed position, i.e., raise the roof and deploy the canopies. The hydraulic actuators not only control raising of the roof and deployment of the canopies, but also deployment of the outer deck panels of the stage. The roof panels and the canopy panels of the mobile stage system may also be in the form of a single, one-piece fabric covering. The mobile stage system may also be provided with a hitch assembly that can be folded out of view of the audience.