Captain Jacob Keyes is a fictional character from the Halo video game series, created by Bungie. He serves as a commanding officer in the United Nations Space Command (UNSC) and is known for his leadership skills and tactical acumen during the Human-Covenant War. Keyes plays a significant role in the events leading up to the first game, particularly in his efforts to combat the alien Covenant forces. Keyes is often depicted as a brave and determined soldier, willing to make sacrifices for his crew and humanity. He is also the father of Miranda Keyes, who appears in later installments of the series. His character is remembered for his strong sense of duty and the impact he had on the overall narrative of the Halo universe.