Main Characters Narrator 17 main appearances Director of Maritime Heritage, NOAA / Maritime Archaeologist, SEARCH Inc. 19 main appearances Naval Historian 7 main appearances
Recurring Guest Characters Maritime Archaeologist, British School at Rome 1 guest appearances Maritime Archaeologist, Cranfield University 1 guest appearances Geologist - Oceanographer, University of Athens 1 guest appearances Professor of Classics and Ancient History, University of Warwick 1 guest appearances Egyptologist 1 guest appearances Archaeologist, University of Edinburgh 1 guest appearances ⇤ « 1 2 3 » ⇥