- Ali Tabrizi
- Self
- Richard O'Barry
- Self - Founder of Dolphin Project
- Lucy Tabrizi
- Self
- Lori Marino
- Self - Founder of the Whale Sanctuary Project
- Tamara Arenovich
- Self - Sea Shepherd Conservation Society
- Paul de Gelder
- Self - Shark Activist, Conservationist
- Callum Roberts
- Self - Marine Scientist, Oceanographer, Author
- Gary Stokes
- Self - Co-Founder of Oceans Asia
- Peter Hammarstedt
- Self - Sea Shepherd Conservation Society
- Lamya Essemlali
- Self - Sea Shepherd Conservation Society
- Mark J. Palmer
- Self - Dolphin Safe Tuna / Earth Island Inst.
- George Monbiot
- Self - Journalist, Author, Environmentalist
- Jackie Nuñez
- Self - Plastic Pollution Coalition
- Dianna Cohen
- Self - CEO of Plastic Pollution Coalition
- Chris Langdon
- Self - Marine Biologist & Ecologist at the University of Miami
- Sylvia Earle
- Self - Marine Biologist, Oceanographer, Explorer
- Cyrill Gutsch
- Self - Founder of Parley for the Oceans
- Paul Watson
- Self - Founder of Sea Shepherd Conservation Society
- Richard Oppenlander
- Self - Author of Food Choice and Sustainability
- MarÃa José Cornax
- Self - Oceana
- Karmenu Vella
- Self - Commissioner of Fisheries and Environment
- Keith Davis
- Self - Fisheries Observer / Missing at Sea (archive footage)
- Gerlie Alpajora
- Self - Assassinated Fisheries Observer
- Christina Hicks
- Self - Environmental Social Scientist
- Stefano Tricanico
- Self - Sea Shepherd Conservation Society
- Alistair Allan
- Self - Sea Shepherd Conservation Society
- Joseph F. Johnson
- Self - Former Deputy Defense Minister for Admin.
- Corin Smith
- Self - Founder of Inside Scottish Salmon Feedlots
- Don Staniford
- Self - Founder of Scottish Salmon Watch
- Steve Trent
- Self - Environmental Justice Foundation
- Jens Mortan Rasmussen
- Self - Faroese Whaler
- Jonathan Balcombe
- Self - Biologist, Best Selling Author: What a Fish Knows
- Michael Greger
- Self - Physician, Best Selling Author, How Not to Die
- Dominique Barnes
- Self - Co-Founder of New Wave Foods & Marine Biologist
- Jane Hightower
- Self - Physician, Author, Diagnosis: Mercury
- Michael Klaper
- Self - Physician, TrueNorth Clinic
