As mentioned earlier in this book, classical theatre contains its own versions of interior drama that are the theatre’s earliest and most recognized use of IM. From ancient to modern times, the idea of sharing a character’s private thoughts has been used to allow an audience entrance into the inner workings of a character’s true motivations. While never truly labeled IM, the use of these devices has been part of the theatrical lexicon for centuries. We will divide these devices into three categories: apostrophe, soliloquy, and aside. Each method has its own definition and rules.