Cécile Croomy (セシル・クルーミー, Seshiru Kurūmī) is Lloyd's subordinate in Camelot and one of the Lancelot's developers. She is a capable scientist in her own right, having designed the energy wing system used on the Guren Seiten and the Lancelot Albion. Cécile is a kind-hearted woman and a good friend to Suzaku, often helping him with homework. She also acts as Lloyd's conscience, not hesitating to scold him or physically punish him for his unintentionally rude remarks or treating Suzaku as a "part". Cécile is a capable Knightmare Frame pilot, managing to single-handedly hold the entire contingent of Black Knights sent to occupy Ashford Academy during the Black Rebellion at bay using a Sutherland modified with equipment from the Lancelot. Prior to joining Lloyd in the military, she studied at the Imperial Colchester Institute. Following Lelouch's ascension to the throne, she follows Lloyd and Suzaku and willingly accepts Lelouch as the new emperor. A recurring joke is that Cécile is a bad cook, though no one has the heart to tell her; her recipes include onigiri mixed with blueberry jam and sandwiches made with ginger, sugar and wasabi.