Daniel B. Gold

Narrator (voice)

Ross Gelbspan

Self

Bill McKibben

Self

John 'Bish' Neuhauser

Self

Ted Nordhaus

Self

Rick Piltz

Self

Michael Shellenberger

Self

Sheila Watt-Cloutier

Self

Tony Blair

Self (archive footage)

Tom Brokaw

Self (archive footage)

George W. Bush

Self (archive footage)

Philip Cooney

Self

Dr. Heidi Cullen

Self

Kert Davies

Self

Leonardo DiCaprio

Self (archive footage)

Myron Ebell

Self

Anne Gelbspan

Self

Michel Gelobter

Self

Leona Goodhope

Self

Al Gore

Self (archive footage)

Sean Hannity

Self (archive footage)

James Hansen

Self (archive footage)

Jamie Henn

Self

James Inhofe

Self (archive footage) (as Sen. James Inhofe)

Jay Inslee

Self

Darrell Issa

Self (archive footage)

Bill Maher

Self (archive footage)

Dan Rather

Self (archive footage)

Oprah Winfrey

Self (archive footage)