The sister of Helen, with blonde hair and green eyes. She is the Queen of Mycenae and the wife of Agamemnon. After her first husband, Tantalus II, and their infant son were murdered by Agamemnon, and her daughter Iphigenia was sacrificed by him, she grew to harbor a deep resentment toward Agamemnon. Her fury only intensified upon hearing that Agamemnon was returning with Cassandra as his concubine. Ultimately, Clytemnestra fell in love with Guest while Agamemnon was away at the Trojan War. She now plans to assassinate Agamemnon and proposes that Guest marry her and become king.

The King of Mycenae and Clytemnestra's husband. He killed her previous husband and children before forcing her to become his wife. He served as the commander-in-chief of the Greek forces and was one of the strongest warriors in the Allied Army during the Trojan War. He returns home in victory, bringing Cassandra with him as a concubine.

Gifted with the power of prophecy by Apollo, she was cursed so that no one would ever believe her predictions. Taken captive by Agamemnon after the Trojan War, she foresees that both she and Agamemnon will be killed by Clytemnestra and Guest, but even Agamemnon refuses to believe her.

The eldest daughter of Agamemnon and Clytemnestra. When Agamemnon killed a deer sacred to Artemis, he was forced to sacrifice Iphigenia as punishment. However, Artemis took pity on her for dying for her father's sins and saved her. Iphigenia was then sent to the Temple of Artemis in Tauris to serve as a priestess.