This is not clear enough for us to give a specific answer.
The most likely answer is that it's either an "aside" or a "soliloquy". Both of these are more or less the theatrical equivalent of a "thought balloon" in a comic strip. The other characters on stage generally do not react to these, as they are supposed to represent the private thoughts of the character speaking.
Asides are usually short, often comedic and/or pithy, and directed specifically at the audience, while soliloquies can be long and are intended to represent the character "talking to himself" with no awareness of the audience at all. In other words, asides "break the fourth wall" while soliloquies do not.
A soliloquy. A soliloquy is when the character is talking to himself (and the audience), as if oblivious to the presence of other characters.
It is called a soliloquy.
A proscenium stage is where the actor faces the whole audience on the front (downstage) of the stage. A thrust stage is where the actor is surrounded on 3 sides by the audience. Think of a proscenium stage as the people coming to the front to see the actor whereas the thrust stage is where the stage comes out into the audience.
Stage Left is the left side of the stage from the Actor's perspective. Conversely, Audience Right (from the audience's perspective) is the same side of the stage as Stage Left.
A soliloquy.
That is called an aside.
Aside is when an actor speaks to the audience not the other members of a cast
A proscenium stage is where the actor faces the whole audience on the front (downstage) of the stage. A thrust stage is where the actor is surrounded on 3 sides by the audience. Think of a proscenium stage as the people coming to the front to see the actor whereas the thrust stage is where the stage comes out into the audience.
Stage Left is the left side of the stage from the Actor's perspective. Conversely, Audience Right (from the audience's perspective) is the same side of the stage as Stage Left.
Interpret serious or comic role by speech, gesture, and body movement to entertain or inform audience for stage.
A soliloquy.
Anxiety about giving a speech, also known as speech anxiety or glossophobia, is a common fear that can cause physical and emotional distress. Symptoms include a racing heart, sweating, trembling, and difficulty speaking. Techniques such as deep breathing, positive visualization, and practice can help manage and overcome speech anxiety.
That is called an aside.
Aside is when an actor speaks to the audience not the other members of a cast
Traverse Stage Advantages for the audience: ---Intimacy between the audience and actors. ---The audience can see the actor's entire body and hear the actors clearly. Advantages for the actors: ---Intimacy between the audience and actors. ---Scenery can be placed on the back wall. Disadvantages for the audience: ---Once an actor walks past one part of the audience, the actor's back will be to the audience. ---It's not really convenient to place scenery on the stage. So, very minimal and small pieces of scenery can be placed on the stage. Disadvantages for the actors: ---Very minimal and small pieces of scenery can be placed on the stage. ---Traverse stages are usually high off the ground. So, the front row audience might not be able to see very well.
Stage Managers do not generally speak to the audience unless a situation arises and the performance is interrupted (such as a fire or an actor being seriously injured on stage). If a Stage Manager talks to an audience out with this it may be at the request of the director who wished them to introduce the show.
The actor talks in a musing tone of voice, usually facing diagonally down-stage. He doesn't talk to the audience; he is voicing his thoughts and the audience just 'overhears' them. The name for this is a soliloquy.
Soliloquy
audience to actor intimacy there aren't really any bad seats