Special Guest Stars Matt Ryan as Dr. Gwyn Davies Donald Faison as Booster Gold Guest Stars Tom Forbes as Alun Thomas Co Starring Conor Stinson O'Gorman as Reece Joel Eskildsen as Soldier #1 Michael Charrois as Prussian General Arvind Johal as Time Policeman Peter Grant as Caveman #1 James R. Cowley as Caveman #2 Dwayne Rhodes as Grizzled Soldier Luke Kuzyk as Soldier #2
