The avatar of the Culture ship Mistake Not..., initially appearing androgynous with bronze skin before reshaping into a handsome Gzilt male. Resourceful, witty, and capable in combat, Berdle accompanies Cossont through her mission to find QiRia's mind-state and memories. Destroyed in the final battle aboard the Equatorial 353 while protecting Cossont from Colonel Agansu's android.