Craig Sechler

Self - Narrator

Russell Boulter

Self - Narrator: National Geographic Channels

Philippe Rouja

Self - Custodian of Wrecks, Bermuda

Mandy Shailer

Self - Mapping Analyst, Government of Bermuda

Nick Hutchings

Self - Ocean Projects Ltd

Struan 'Robbie' Smith

Self - Natural History Museum, Bermuda

Michael C. Barnette

Self - Association of Underwater Explorers

Roy L. Stafford

Self - Black Shadow Aviation

Thomas M. Iliffe

Self - Texas A&M University

Marvin W. Barrash

Self - Author 'USS Cyclops'

Simon Boxall

Self - National Oceanography Centre, UK

Eric Berkenpas

Self - Remote Imaging, National Geographic Society

Uri ten Brink

Self - U.S. Geological Survey