[3] Monologues are also distinct from apostrophes, in which the speaker or writer addresses an imaginary person, inanimate object, or idea.
[8] From Renaissance theatre onward, monologues generally focused on characters using the extended speech to pursue their dramatic need.
Postmodern theatre, on the other hand, often embraces the performative aspects of the monologue, even to the point of challenging the boundary between character portrayal (e.g. acting) and autobiographical speeches.
[10] Interior monologues involve a character externalizing their thoughts so that the audience can witness experiences that would otherwise be mostly internal.
Narrative monologues simply involve a character telling a story and can often be identified by the fact that they are in the past tense.