Haemon
Son of Creon and fiancé of Antigone. Haemon tries to convince his father to be compassionate toward Antigone and to heed the will of the people of Thebes, who don't want to see her executed. He attacks his father and then kills himself when he finds Antigone dead.
A Sentry
The sentry brings Creon the news of Polynices's illegal burial and later catches Antigone in the act of performing funereal rites for Polynices's body.