What is called when a character articulates their inner thoughts aloud?

A monologue is the appropriate term for a situation where a character articulates their inner thoughts aloud. This dramatic device often allows the audience insight into the character's feelings, motivations, and internal conflicts. It typically involves a single speaker expressing their thoughts in a cohesive speech, which can vary in length and depth, providing a powerful way to connect with the audience.

While an aside refers to a brief remark made by a character that is meant to be heard by the audience but not by other characters, it is generally shorter and used to convey thoughts or opinions without the same level of detail as a monologue. A flashforward, on the other hand, is a narrative device that takes the audience forward in time, presenting events that occur after the main story. Similarly, a voice-over is a technique in which a character's voice is heard narrating the story while actions on stage or screen continue, but it typically does not occur as part of the character's interaction with others.

Thus, given the description of articulating inner thoughts aloud, a monologue is the most fitting term.