Guest Stars Eric Grove as Himself (Naval Historian) James Delgado as Himself (Marine Archaeologist) Ian McCann as Himself (Archaeologist) Mark Stille as Himself (Commander, U.S. Navy Ret.) Hiro Kazushi as Himself (IImperial Japanese Navy Retired) Kenzo Hayashida as Himself (Maritime Archaelogist) Ikuhiro Tomohiro as Himself (Matsuura City Mayor) Jun Kimura as Himself (Maritime Archaelogist) Trân Xá as Himself (Pearl Diver) Jayne Stowell as Himself (Strategic Advisor) Graham Evans as Himself (EGS Survey Group)
