 | Jeff Bridges als Self / Narrator (voice) |
 | Piers Sellers als Self - NASA Astronaut & Research Scientist |
 | Wesley Clark als Self - General, US Army (ret.); Former NATO Supreme Allied Cmdr. |
 | Oren R. Lyons als Self - Dist Prof of American Studies, Onondaga Council of Chiefs |
 | Timothy Morton als Self - Philosopher & Author, 'Humankind' |
 | Bob Inglis als Self - Former Congressman (R), South Carolina |
 | Rich Pancost als Self - Professor of Biogeochemistry |
 | Ruth Gates als Self - Marine Biologist; Dir. Hawaii Institute of Marine Biology |
 | Renée Lertzman als Self - Author, ‘Environmental Melancholia’ |
| Leonard Mlodinow als Self - Physicist |
| Bruce Hood als Self - Prof of Developmental Psychology, Univ of Bristol, UK |
| Mark Plotkin als Self - Ethnobotanist, Amazon Conservation Team |
| Amy Jacobson als Self - Evolutionary Anthropologist, Human Behavioral Ecologist |
| Daniel Goleman als Self - Psychologist, Science Journalist, Author |
 | Stephan Lewandowsky als Self - Professor of Cognitive Psychology, University of Bristol |
 | Nate Hagens als Self - Director, Instit. for the Study of Energy & Our Future |
| Joseph Tainter als Self - Professor of Anthropology, Author |
| Ugo Bardi als Self - Prof of Physical Chemistry, Univ of Florence, Italy |
| Paul Roberts als Self - Journalist; Author, 'The Impulse Society' |
| Ian Robertson als Self - Cognitive Neuroscientist, Trinity College, Univ of Dublin |
| Susan Kucera | Director |
| Susan Kucera | Director of Photography |
| Susan Kucera | Editor |
| Jeff Bridges | Producer |
| Keefus Ciancia | Original Music Composer |
| Susan Kucera | Producer |
| Bob Holroyd | Additional Music |
| Anna Kirsch | Story Consultant |
| Ken S. Polk | Sound Designer |
| Ken S. Polk | Sound Mixer |
| Jeff Bridges | Script |
| Anna Kirsch | Script |
| Nate Hagens | Script |
| Timothy Morton | Script |
| Jay April | Script |
| Daniel Goleman | Script |
| Susan Kucera | Script |
| Gawain Bantle | Logistics Coordinator |
| Gawain Bantle | Drone Operator |
| Ken S. Polk | Supervising Sound Editor |
| Andy Hurtado | Sound Effects Editor |
| Chad Russo | Legal Services |
| Jim Swift | Producer |
| Jim Swift | Executive Producer |
| Jim Swift | Script |
