What is it called when an actor talks to himself?

What is it called when an actor talks to himself? Soliloquy (from the Latin solus “alone” and loqui “to speak”) at its most basic level refers to the act of talking to oneself, and more specifically denotes the solo utterance of an actor in a drama.

Soliloquy (from the Latin solus “alone” and loqui “to speak”) at its most basic level refers to the act of talking to oneself, and more specifically denotes the solo utterance of an actor in a drama.