Aristede Vorkalloner was a commander in the Barrayaran Imperial Service who was killed during the Escobar War. As a lieutenant commander, he was the second officer of Captain Aral Vorkosigan's ship, the General Vorkraft. He was on the vessel when Cordelia Naismith was briefly captured. During the lead-up to the Barrayaran invasion of Escobar, Vorkosigan was promoted to commodore and assigned to Vice-Admiral Vorrutyer's staff. The executive officer of the General Vorkraft, Korabik Gottyan, became its captain, and Aristede Vorkalloner was promoted to commander.