Gilbert G.P. Guilford (ギルバート・G・P・ギルフォード,

• Age: 27 (Season one) 28 (Season two)

Confidante and personal knight to the Second Princess Cornelia, who arrived in Area 11 as a member of the princess' contingent; a slender, dark-haired, bespectacled man. Guilford informs Jeremiah Gottwald of his demotion shortly after arrival.

After Governor-General Carares is killed in the Babel Tower incident in season two, Guilford serves as temporary Governor-General to Area 11.