朱莉娅·罗伯茨

Julia Roberts

饰：Herself - Actress,Spokesperson & Chair, School Bus America

吉米·卡特

Jimmy Carter

饰：Himself - President of the United States (archive footage)

拉里·戴维

Larry David

饰：Himself - Actor,Comedian,Environmental Activist

罗纳德·威尔逊·里根

Ronald Wilson Reagan

饰：Himself - President of the United States (archive footage)

伍迪·哈里森

Woody Harrelson

饰：Himself - Actor,Environmentalist

德怀特·戴维·艾森豪威尔

Dwight D. Eisenhower

饰：Himself - President of the United States

威利·纳尔逊

Willie Nelson

饰：Himself - Musician,Co-Founder, Farm Aid

拉里·哈格曼

Larry Hagman

饰：Himself - Actor,Renewable Energy Advocate

乔治·W· 布什

George W. Bush

饰：Himself - President of the United States (archive footage)

雪儿·克劳

Sheryl Crow

饰：Herself - Musician,Environmental Activist

芭芭拉·博克瑟

Barbara Boxer

饰：Herself - Senator - California

理查德·布兰森

Richard Branson

饰：Himself - Founder, Virgin Group

尼尔·杨

Neil Young

饰：Himself - Musician,Co-Founder, Farm Aid

Robert Kennedy Jr.

饰：Himself - Attorney for NRDC,President, Water Keeper Alliance

Scott Ritter

Scott Ritter

饰：Himself - Former UN Weapons Inspector in Iraq

约什·蒂克尔

Joshua Tickell

饰：Self,narrator

Frank Lautenberg

饰：Himself - Senator - New Jersey

Jay Inslee

Jay Inslee

饰：Himself - Congressman, Washington

Deborah Dupre

Deborah Dupre

饰：Herself - Environmental Activist and Josh's Mom

Laurie David

Laurie David

饰：Herself - Actor,Comedian,Environmental Activist

Jeremiah Dupre

饰：Josh`s brother

Perry Freeze

饰：Himself - Owner of Diesel Volkswagen Jetta

Joseph Harberg

饰：Himself, Environmental Expert

劳丽·伦纳德

Laurie Lennard

饰：自己

Gal Luft

饰：Self - Executive Director of Institute for the Analysis of Global Security,(as Dr. Gal Luft)

Herman Franssen

饰：Self - President of International Energy Associates,(as Dr. Hermann Frassen)

Blanche Lincoln

饰：Self - U.S. Senator (D) from Arkansas

Eliot Engel

饰：Self - New York Congressman,(as Rep. Eliot Engel)

Smudo

饰：Self - Singer with 'Fantastic Four',Biodiesel Racecar Driver,/ (as Michael Schmidt aka 'Smudo')

Pete Bethune

饰：Self - Skipper of Earthrace Powerboat

Helen Hobbs

饰：Self - Farmer,Founder of BE Bioenergy

William Moomaw

饰：Self - Professor of Environmental Policy at Tufts University,(as Dr. William Moomaw)

Bill Mack

饰：Self - DJ of Open Road Show on XM Radio

卡丽·拉扎

Carrie Lazar

饰：Self - Owner of Diesel Volkswagen Beetle,(as Rachel)

Herb Meyer

饰：Self - Former CIA Secretary

杰克·约翰逊

Jack Johnson

饰：Self - Musician,Environmentalist

Colin Campbell

Colin Campbell

饰：Self - Oil Geologist,Author,/ (as Dr. Colin Campbell)

Matthew Simmons

Matthew Simmons

饰：Self - Former Advisor to President Bush

Roger Ballentine

饰：Self - Former Energy Advisor to President Clinton

William Baggett

William Baggett

饰：Self - Attorney in Baggett & McCall

James Woolsey

饰：Self - Former CIA Director (1993-1995)

Robert McFarlane

饰：Self - Former National Security Advisor in Reagan Administration,(as Robert 'Bud' McFarland)

Steven Hobbs

饰：Self - Barley Farmer,Founder of BE Bioenergy

Jim Hightower

饰：Self - Former Texas Agriculture Commissioner

Carl Cornelius

饰：Self - Owner of Carl's Corner Truckstop in Texas

Collete Brooks

饰：Self - Founder of Bio-Blind

David M. Walker

David M. Walker

饰：Self - Former Comptroller General of the U.S.