Fuel

Josh Tickell

Self - Narrator

芭芭拉·柏克瑟

Self - Senator, California

Richard Branson

Self - Founder, Virgin Group

乔治·沃克·布什

Self - President of the United States

雪莉·克劳

Self - Musician / Environmental Activist

拉里·戴维

Self - Actor / Comedian / Environmental Activist

Blanche Lincoln

Self

Jim Hightower

Self