Guest Stars Eric Grove as Himself (Naval Historian) James Delgado as Himself (Marine Archaeologist) Kenneth Lacovara as Himself Mario Rebolledo-Vieyra as Himself (Geophysicist) Sean Gulick as Himself Dave Huber as Himself Frederick Hanselmann as Himself Amy Borgens as Herself (Marine Archaeologist) Robert Church as Himself (Marine Archaeologist)
