Llobell will play Gaal, a mathematical genius from a rural, repressed planet. Harvey will portray Salvor, the protective and intuitive warden of a remote outer planet. Birn will play Demerzel the enigmatic aide to the Emperor of the Galaxy (Pace). Mann will portray Brother Dusk, the eldest living member of the ruling family. Bilton will play Brother Dawn, the youngest living member of the ruling family, next in line to be Brother Day.
Pace plays Brother Day, the current Emperor of the Galaxy. Harris plays Hari Seldon, a mathematical genius who predicts the demise of the empire.