Josh Tickell
饰 Self - Narrator
芭芭拉·柏克瑟
饰 Self - Senator, California
Richard Branson
饰 Self - Founder, Virgin Group
乔治·沃克·布什
饰 Self - President of the United States
雪莉·克劳
饰 Self - Musician / Environmental Activist
拉里·戴维
饰 Self - Actor / Comedian / Environmental Activist
