詹姆斯·巴洛格

James Balog

饰：Himself

Svavar Jonatansson

饰：Himself

Adam LeWinter

饰：Himself

Kitty Boone

Kitty Boone

饰：Self - The Aspen Institute

希尔维亚·厄尔

Sylvia Earle

饰：Self - National Geographic Explorer,(as Sylvia Earle Ph.D.)

Dennis Dimick

Dennis Dimick

饰：Self - National Geographic Editor

Jason Box

Jason Box

饰：Self - Climatologist, Ohio State University,(as Jason Box Ph.D.)

Tad Pfeffer

Tad Pfeffer

饰：Himself - University of Colorado at Boulder

Suzanne Balog

Suzanne Balog

饰：Self - James's Wife

Synte Peacock

Synte Peacock

饰：Self - Oceanographer, National Center for Atmospheric Research,(as Synte Peacock Ph.D.)

Terry Root

Terry Root

饰：Self - Senior Fellow, Stanford University Woods Institute,(as Terry Root Ph.D.)

Thomas Swetnam

Thomas Swetnam

饰：Self - Directof of Tree-Ring Research, University of Arizona,(as Thomas Swetnam Ph.D.)

Peter Hoeppe

Peter Hoeppe

饰：Self - Head of Geo Risks Research, Munich Reinsurance,(as Peter Hoeppe Ph.D.)

Gerald Meehl

Gerald Meehl

Emily Balog

Emily Balog

Martin Nørgaard

Martin Nørgaard

Simone Balog

Simone Balog

James Woolsey

James Woolsey

饰：Self - Former Director of Central Intelligence,(as R. James Woolsey)

Martin Sharp

Martin Sharp

Richard Ward

Richard Ward

杰夫·奥洛威斯基

Jeff Orlowski

饰：Himself

路易·西霍尤斯

Louie Psihoyos

饰：自己