| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Sophie Elwin-Harris | Crew | Creator | Creator, Director | 25 |
 Adolf Hitler | Cast | Actor | Self (archive footage) | 1 |
 Craig Sechler | Cast | Actor | Narrator | 55 |
 Winston Churchill | Cast | Actor | Self (archive footage) | 1 |
Kenneth Lacovara | Cast | Self - Director, Edelman Fossil Park | 1 | |
 Michael Scott | Cast | Actor | Self - Prof. Classics and Ancient History, Univ. Warwick | 1 |
James P. Delgado | Cast | Self - Marine Archaeologist | 1 | |
Innes McCartney | Cast | Self - Maritime Archaeologist, Bournemouth University | 1 | |
Adam Olejnik | Cast | Self - Polish Naval Academy, Co-Author 'Freedom of the Seas' | 1 | |
Andrzej Slaby | Cast | Self - Hydrographer, LOTUS Petrobaltic S.A. | 1 | |
David Mearns | Cast | Self - Shipwreck Hunter - Blue Water Recoveries | 1 | |
Jann Witt | Cast | Self - Historian, German Naval Association | 1 | |
Fredrik Soreide | Cast | Self - Norwegian University of Science and Technology | 1 | |
Runar Lia | Cast | Self - Norwegian Industrial Workers Museum | 1 | |
Stephen Burke | Cast | Self - Co-Author 'Freedom of the Seas' | 1 | |
Eric Grove | Cast | Self - Naval Historian | 2 | |
Frederick Hanselmann | Cast | Self - University of Miami | 1 | |
Mario Rebolledo-Vieyra | Cast | Self - Geophysicist | 1 | |
Sean Gulick | Cast | Self - University of Texas | 1 | |
Dave Huber | Cast | Actor | Self - Co-founder, Deep Gulf Energy | 1 |
Amy Borgens | Cast | Self - Marine Archaeologist | 1 | |
Robert Church | Cast | Self - Marine Archaeologist | 1 | |
Evi Nomikou | Cast | Actress | Self - Geologist - Oceanographer, University of Athens | 1 |
Costas Emmanuel Synolakis | Cast | Self - Dir. Tsunami Research Center, Univ. Southern California | 1 | |
Lefteris Zorzos | Cast | Self - Archaeologist | 1 | |
Stella Demesticha | Cast | Self - Ass. Prof. Maritime Archaeology, Univ. Cyprus | 1 | |
Jon Henderson | Cast | Self - Prof. Classics and Archaeology, Univ. Nottingham | 1 | |
William M. Murray | Cast | Self - Stathis Prof. Greek History, Univ. South Florida | 1 | |
Peter Campbell | Cast | Self - Maritime Archaeologist, RPM Nautical Foundation | 1 | |
 Dougal Jerram | Cast | Actor | Self - Earth Scientist, University of Oslo | 1 |
| Person | Type | Job | Role(s) | Episodes |
