Guest Stars Mark Williams as Brian Williams Riann Steele as Queen Nefertiti David Bradley as Solomon Rudi Dharmalingam as ISA Worker David Mitchell voices Robot 1 Rupert Graves as John Riddell Robert Webb voices Robot 2 Sunetra Sarker as Indira Richard Hope as Bleytal Richard Garaghty as Robot 2 Noel Byrne as Robot 1