Hera Hilmar sebagai Hester Shaw, seorang pembunuh, yang terselindung, dengan pembantah peribadi terhadap Thaddeus.
Robert Sheehan sebagai Tom Natsworthy, sejarawan perantis kelas rendah London dibuang keluar dari bandar dan dipaksa untuk berdamai dengan Hester dan perlawanan.
Hugo Weaving sebagai Thaddeus Valentine, Head of the Guild of Historians and the father of Katherine Valentine.
Jihae as Anna Fang, a pilot and leader of the Anti-Traction League, a resistance group banding against the moving cities devouring Earth's resources.
Ronan Raftery as Bevis Pod, an apprentice engineer whom Katherine befriends.
Leila George as Katherine Valentine, daughter of Thaddeus Valentine and one of London's elite.
Stephen Lang as Shrike, the last of an undead battalion of soldiers known as Stalkers, who were war casualties reanimated with machine parts. He raised Hester and now works for Crome.
