Edmund Duke is a character from the Terran campaign in Starcraft. Once an officer in the Confederacy and then in the Dominion, the tactician leads the Alpha Squadron forces during the early game.
He gets defeated by Arcturus Mengsk, shot by the Zerg and rescued by Jim Raynor. Organizer of the fleet defenses against the United Earth Directorate, he later joins his forces with Mengsk and Kerrigan. Because of their conflicts, Duke gets killed by Kerrigan.