Guest Stars Darius Arya as Himself (American Institute for Roman Culture) Kevin W. Farrell as Himself (U.S. Army (Ret.)) Steve Kershaw as Himself (University of Oxford) Wesley Clark as Himself (Former NATO Supreme Allied Commander, U.S. Army) Robert Herjavec as Himself (CEO, Herjavec Group) Peter Heather as Himself (King's College London) Ian Beattie as Varus Tulsi Gabbard as Herself (U.S. Congress, Hawaii) Richard Riddell as Flavus Murray McArthur as Egus Fintan McKeown as Iguiomerus Steven Berkoff as Augustus Daniela Marinova as Thusnelda Louis Hynes as Young Alaric George Remes as Unwen Marty Rea as Lupicinius Antoaneta Peeva as Young Avina Victor Bitiusca as Idlefons Dimitar Banenkin as Kunimund Michael Kullikowski as Himself (Penn State) Noel Lenski as Himself (Yale University) Morris O'Connor as Himself (King's College London) Dimo Alexiev as Emsger Georgi Zlatarev as Segestes David Furlow as Himself (Author) Lindsay Powell as Himself (Author) Leart Dokle as Stilicho Vanessa Collingridge as Herself (Author) Kerry Ingram as Hilde Douglas Russell as Drest John Bowler as Catus Decianus Aleksandra Atanasova as Epona Paul Kynman as Arthfael Anton Poriazov as Goth Rebel Aidan Kelly as Cathbad