D
Daniel B. Gold
Narrator (voice)
R
Ross Gelbspan
Self
B
Bill McKibben
Self
J
John 'Bish' Neuhauser
Self
T
Ted Nordhaus
Self
R
Rick Piltz
Self
Michael Shellenberger
Self
S
Sheila Watt-Cloutier
Self
Tony Blair
Self (archive footage)
Tom Brokaw
Self (archive footage)
George W. Bush
Self (archive footage)
P
Philip Cooney
Self
D
Dr. Heidi Cullen
Self
K
Kert Davies
Self
Leonardo DiCaprio
Self (archive footage)
M
Myron Ebell
Self
A
Anne Gelbspan
Self
M
Michel Gelobter
Self
L
Leona Goodhope
Self
Al Gore
Self (archive footage)
Sean Hannity
Self (archive footage)
James Hansen
Self (archive footage)
J
Jamie Henn
Self
J
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)