Martin Van Kranendonk

饰：(as Dr Martin Van Kranendonk)

Mark A.S. McMenamin

饰：(as Prof Mark McMenamin)

Páll Einarsson

饰：(as Prof Pall Einarsson)

Frederick Rich

饰：(as Prof Frederick Rich)

Reese Barrick

饰：(as Dr Reese Barrick)

Jack Robey

饰：(as Dr Jack Robey)

Adrian Pfiffner

饰：(as Prof Adrian Pfiffner)

Wayne Ranney

饰：Self - Geologist, Grand Canyon Field Institute

Finnur Palsson

饰：Self - Climatologist, University of Iceland

Joerg Schaeffer

饰：(as Dr Joerg Schaeffer)

Geoffrey Boulton

饰：Himself

Dan Durda

饰：Himself

克里·约翰逊

Corey Johnson

饰：Narrator

爱德华·赫曼

Edward Herrmann

饰：自己

Geoffrey Notkin

饰：自己