Guest Stars Eric Grove as Himself (Naval Historian) James Delgado as Himself (Marine Archaeologist) David Manley as Himself (Naval Architect) Nick Jellicoe as Himself (Jutland Historian) William Jurens as Himself (Battleship Historian) Dan Stevenson as Himself (Technical Diver) John Thornton as Himself (Technical Dive Skipper) Ian Murray Taylor as Himself (Naval Architect) Mark Lawrence as Himself (Maritime Archaelogist) Michael Epkenhans as Himself (Naval Historian)