Guest Stars Jairaj Varsani as Poly Verisof Alfred Enoch as Raych Foss Chloe Lea as Gia Joni Morris as Laylo Fulham Buddy Skelton as Keir Co Starring Mido Hamada as Shadowmaster Obrecht Vanessa Ifediora as Imperial Herald Reece Shearsmith as Jerril Cooper Carter as Young Dawn Abby Dunlavy as Spacer Chris Jarman as Jarko Dornick Carolina Main as Ambassador Shae Un Shae Jade Harrison as Bayla Dornick Brian Bovell as Trantorian Seer Priest Antony Bunsee as Ambassador Xandem Joyce Grey-Carter as Synnaxian Stone Remover Alexander Siddig as Advocate Xylas Barry McGovern as Orlio Thomas Lappin as Customs Officer Samir Fuchs as Prime Magistrate Jerry Kwarteng as Imperial Guardian Suit Proschat Madani as Lors Avakim Anne Gill as Teacher Kirsten Block as Chamberlain Nikhil Dubey as Bomber #1 Connor Dudley-Fergus as Bomber #2 Rachel Rose Lynch as Little Girl