Who is George, the manager of Ahnernebe?
In my guess he refers to the voice actor Jouji Nakata, the CV of Kirei Kotomine(in Fate), Souren Araya(in Kara no kyoukai) and Nero(in Tsukihime). When he is angry the image of the three characters will show up behind him. Besides, Jouji in Japanese sounds very similar to George in English.