Bana stars as Hector to Pitt's Achilles. Hector is the prince of Troy, who leads the Trojan army in holding off the entire Greek armada. It is Hector's brother, Paris (Bloom), who steals the beautiful Helen away from her husband, Menelaus, the king of Sparta, and prompts the war between Greece and Troy. O'Toole will play Priam, king of Troy. Christie will play Thetis, the mother of Achilles.