Who is Aeschylus in the play Antigone? Who is Parodo in Antigone? Who is Dionysos in Antigone?

As far as I know Aeschylus, a Greek tragedian, does not
appear in Sophocles' tragedy Antigone.  He wrote his own tragedies,
namely Agamemnon, Prometheus Bound, and
Seven Against Thebes.  He is related to the play
Antigone, I suppose, because his play Seven Against
Thebes provides the antecedent action to Antigone.  It
is a kind of prequel, as it details how Antigone's brothers Eteocles and Polyneices
killed each other in the civil war of Thebes.

For the other
questions, you'll have to research "Ancient Greek Theater," (see link below) as they are
not found in the play itself.  They are terms related to a part of the structure of the
play and the stage.  You are only allowed to ask one question per day,
regardless.