Gilbert G.P. Guilford is a slender, dark-haired, bespectacled man who was once known as the 'Spearhead of the Empire'. He is confidante and personal knight to the Second Princess Cornelia, and commands her Glaston Knights. Though he initially pilots a Gloucester, he switches to the more advanced Vincent model in the second season. He informs Jeremiah Gottwald of his demotion shortly after his arrival, and helps to end the Black Rebellion with the help of the Glaston Knights. Following Cornelia's disappearance during the rebellion, he remains in Area 11, dutifully awaiting her return. After Viceroy Carares is killed in the second season, Guilford serves as a temporary replacement prior to Nunnally taking over the position.