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 Brian Bovell as Trantorian Seer Priest Joyce Grey-Carter as Synnaxian Stone Remover Jade Harrison as Bayla Dornick Antony Bunsee as Ambassador Xandem Alexander Siddig as Advocate Xylas Barry McGovern as Orlio Anne Gill as Teacher Samir Fuchs as Prime Magistrate Jerry Kwarteng as Imperial Guardian Suit Proschat Madani as Lors Avakim Kirsten Block as Chamberlain Nikhil Dubey as Bomber #1 Connor Dudley-Fergus as Bomber #2 Thomas Lappin as Customs Officer Rachel Rose Lynch as Little Girl