Character Name : Self / Narrator (voice)

Original Name : Jeff Bridges

Gender : Male

Character Name : Self - NASA Astronaut & Research Scientist

Original Name : Piers Sellers

Gender : Male

Character Name : Self - General, US Army (ret.); Former NATO Supreme Allied Cmdr.

Original Name : Wesley Clark

Gender : Male

Character Name : Self - Dist Prof of American Studies, Onondaga Council of Chiefs

Original Name : Oren R. Lyons

Gender : Male

Character Name : Self - Philosopher & Author, 'Humankind'

Original Name : Timothy Morton

Gender : Male

Character Name : Self - Former Congressman (R), South Carolina

Original Name : Bob Inglis

Gender : Male

Character Name : Self - Professor of Biogeochemistry

Original Name : Rich Pancost

Gender : Male

Character Name : Self - Marine Biologist; Dir. Hawaii Institute of Marine Biology

Original Name : Ruth Gates

Gender : Male

Character Name : Self - Author, ‘Environmental Melancholia’

Original Name : Renée Lertzman

Gender : Female

Character Name : Self - Physicist

Original Name : Leonard Mlodinow

Gender : Male

Character Name : Self - Prof of Developmental Psychology, Univ of Bristol, UK

Original Name : Bruce Hood

Gender : Male

Character Name : Self - Ethnobotanist, Amazon Conservation Team

Original Name : Mark Plotkin

Gender : Male

Character Name : Self - Evolutionary Anthropologist, Human Behavioral Ecologist

Original Name : Amy Jacobson

Gender : Female

Character Name : Self - Psychologist, Science Journalist, Author

Original Name : Daniel Goleman

Gender : Male

Character Name : Self - Professor of Cognitive Psychology, University of Bristol

Original Name : Stephan Lewandowsky

Gender : Male

Character Name : Self - Director, Instit. for the Study of Energy & Our Future

Original Name : Nate Hagens

Gender : Male

Character Name : Self - Professor of Anthropology, Author

Original Name : Joseph Tainter

Gender : Male

Character Name : Self - Prof of Physical Chemistry, Univ of Florence, Italy

Original Name : Ugo Bardi

Gender : Male

Character Name : Self - Journalist; Author, 'The Impulse Society'

Original Name : Paul Roberts

Gender : Male

Character Name : Self - Cognitive Neuroscientist, Trinity College, Univ of Dublin

Original Name : Ian Robertson

Gender : Male