Casting | Rôle |
|---|
| Jeff Bridges | Self - Narrator (voice) |
| Piers Sellers | Self - NASA Astronaut & Research Scientist |
| Wesley Clark | Self - General, US Army (ret.); Former NATO Supreme Allied Cmdr. |
| Oren R. Lyons | Self - Dist Prof of American Studies, Onondaga Council of Chiefs |
| Timothy Morton | Self - Philosopher & Author, 'Humankind' |
| Bob Inglis | Self - Former Congressman (R), South Carolina |
| Rich Pancost | Self - Professor of Biogeochemistry |
| Ruth Gates | Self - Marine Biologist; Dir. Hawaii Institute of Marine Biology |
| Renée Lertzman | Self - Author, ‘Environmental Melancholia’ |
| Leonard Mlodinow | Self - Physicist |
| Bruce Hood | Self - Prof of Developmental Psychology, Univ of Bristol, UK |
| Mark Plotkin | Self - Ethnobotanist, Amazon Conservation Team |
| Amy Jacobson | Self - Evolutionary Anthropologist, Human Behavioral Ecologist |
| Daniel Goleman | Self - Psychologist, Science Journalist, Author |
| Stephan Lewandowsky | Self - Professor of Cognitive Psychology, University of Bristol |
| Nate Hagens | Self - Director, Instit. for the Study of Energy & Our Future |
| Joseph Tainter | Self - Professor of Anthropology, Author |
| Ugo Bardi | Self - Prof of Physical Chemistry, Univ of Florence, Italy |
| Paul Roberts | Self - Journalist; Author, 'The Impulse Society' |
| Ian Robertson | Self - Cognitive Neuroscientist, Trinity College, Univ of Dublin |
