Recurring Guest Characters Sami Jarroush - Historian 14 guest appearances Martin K.A. Morgan - Military Historian 6 guest appearances Dr. Hakeem Oluseyi - Astrophysicist, Princeton University 3 guest appearances Archaeologist & Museum Curator, Denver Museum of Nature & Science 2 guest appearances Ramy Romany - Egyptologist 2 guest appearances UK Ministry of Defense, Retired 1 guest appearances Dr. Aidan Dodson - Egyptologist, University of Bristol 1 guest appearances Dr. Kara Cooney - Professor of Egyptology, UCLA 1 guest appearances Scott Wolter - Forensic Geologist 1 guest appearances Geologist 1 guest appearances Jesse J. Holland 1 guest appearances