The theatre is built in the style of a classical Roman theatre, but does have some Gallo-Roman modifications. Both the Orchestra and the Cavea (spectator seating) are nearly horseshoe shaped. The actual stage is a simple wooden platform. The "scaenae frons" or background wall had three doors leading to the relatively small () stage building ("postscaenium") which is built projecting out behind the wall. The "scaenae frons" was built with a gap in the wall which showed the Cigognier Temple to the audience. The theatre was used for comedies and tragedies, but there is also a "cult niche" at the foot of the audience's section with the stage forming an altar. This indicates that the theatre may have also been used for "dedicating plays" for religious ceremonies.