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) Jesse Jackson as Himself (Civil Rights Leader) Robert Herjavec as Himself (CEO, Herjavec Group) Tulsi Gabbard as Herself (U.S. Congress, Hawaii) Clarence B. Jones as Himself (Civil Rights Leader) Barry Strauss as Himself (Professor at Cornell University) Lenny Depaul as Himself (U.S. Marshall Service (Ret.)) Lindsay Powell as Himself (Author) Eric L. Haney as Himself (Command Sergeant Major, U.S. Army (Ret.)) Clive Russell as Cumelios Wilson Radjou-Pujalte as Young Hannibal John Macmillan as Mago Ian McElhinney as Tagus Anton Trendafilov as Viriathus's Father Valerio Massimo Manfredi as Himself (Archaeologist) Julian Kostov as Marcus Josh Bolt as Reburrus Nick Moss as Vetilius Dan-El Padilla Peralta as Himself (Princeton University) Atanas Srebrev as Metellus Radu Andrei Micu as Ditalicus Patrick Regis as Hamilcar Ayelet Haimson Lushkov as Herself (University of Texas at Austin) Ben Allen as Scipio Jr. Denis Ștefan as Maharbal Mihai Verbinski as Magalus Gertrude Nickolalis Sebastian as African Priestess
