Guest Stars Nicholas Briggs voices Cybermen Jacob Anderson as Inston-Vee Vinder Rochenda Sandall as Azure Bhavnisha Parmar as Sonya Khan Nadia Albina as Diane Sam Spruell as Swarm Jo Martin as The Doctor Steve Oram as Joseph Williamson Craige Els as Karvanista Jonny Mathers as Passenger Thaddea Graham as Bel Craig Parkinson as Grand Serpent Barbara Flynn as Tecteun Matthew Needham as Old Swarm Nigel Richard Lambert voices Priest Triangle Amanda Drew voices Mouri Chantelle Pierre as Police Officer
