• 
  James P. Delgado

  9 episodes, 2018-2019
• 
  Eric Grove

  7 episodes, 2018-2019
• 
  Russell Boulter

  25 episodes, 2018-2019
• 
  Craig Sechler

  2 episodes, 2018
• 
  Jon Henderson

  Self - Archaeologist, University of Nottingham
• 
  Fredrik Soreide

  Self - Norwegian University of Science and Technology
• 
  Craig L. Symonds

  Self - Author and Historian
• 
  Innes McCarthy

  Self - Maritime Archaeologist, Bournemouth University

• 
  David Mearns

  Self - Shipwreck Hunter. Blue Water Recoveries
• 
  Jann Witt

  Self - Historian, German Naval Association
• 
  Anthony Tully

  Self - Historian & Author
• 
  Frederick Hanselmann

  Self - Archaeologist, University of Miami
• 
  Andy Sherrell

  Self - Deep Sea Search and Salvage Expert
• 
  Sam Willis

  Self - Archaeologist and Historian
• 
  Peter Campbell

  Self - Maritime Archaeologist, British School at Rome

• 
  Jens Auer

  Self - Maritime Archaeologist, Wessex Archaeology Ltd
• 
  Mallory Haas

  Self - Maritime Archaeologist
• 
  Ken Nahshon

  Self - Research Engineer, Naval Surface Warfare Center
• 
  Kerry Shale

  Narrator
• 
  Mike Brennan

  Self - Maritime Archaeologist, SEARCH Inc.
• 
  Art Trembanis

  Self - Director CSHEL, University of Delaware