Peter Agnefjall

饰：Himself

Tasso Azevedo

饰：Himself

朱棣文

Steven Chu

饰：Himself

Dr. Lynn Crosby

饰：Herself

Oronto Douglas

饰：Himself

Sebastian Duma

饰：Himself

Christiana Figueres

饰：Herself

Wu Gang

饰：Himself

Maria Gunnoe

饰：Herself

Jennifer Hall-Massey

饰：Herself

珍·古道尔

Jane Goodall

饰：自己

奥斯卡·伊萨克

Oscar Isaac

饰：Narrator,

Jerry Brown

Jerry Brown

饰：自己

奥斯卡·伊萨克

Oscar Isaac

饰：自己

Neal Barnard

Neal Barnard

饰：Self - Adjunct Associate Professor of Medicine, George Washington University School of Medicine and Health Sciences in Washington, D.C.

Amory Lovins

饰：Self - Founder & Chief Scientist, Rocky Mountain Institute

Kumi Naidoo

饰：Self - South African Human Rights Activist, Executive Director of Greenpeace International

Paul Polman

饰：Self - CEO of Unilever

Dr. Ian Singleton

饰：Self - Founder and Director, Sumatran Orangutan Conservation Program,(as Dr. Ian Singleton)

Muhammad Yunus

Muhammad Yunus

饰：Self - Nobel Peace Prize Winner, Founder of Grameen Bank

Peter Calthorpe

Peter Calthorpe

饰：Self - Architect and Urban Designer, Author, Urbanism in the Age of Climate Change

James Hansen

James Hansen

饰：Self - Climate Scientist

Danny Kennedy

饰：Self - Co-Founder of Sungevity

Blairo Maggi

饰：Self - Son of Brazilian Agribusiness Mogul Andre Maggi

Russell A. Mittermeier

饰：Self - President of Conservation International,(as Russ Mittermeier)

迈克尔·波伦

Michael Pollan

饰：Self - Journalist,Author, In Defense of Food