克里·约翰逊

Corey Johnson

饰：自己 Self

Nick Petford

饰：Self - Bournemouth University

Bill McGuire

Bill McGuire

饰：Self - Geologist, University College London

William Hartmann

饰：Self - Planetary Scientist, Planetary Science Institute, Arizona

Charlie Paull

饰：Self - Marine Geologist, Monterey Bay Aquarium Research Institute

Jake Lowenstern

饰：Self - Yellowstone Volcano Observatory, US Geological Survey

Andy Bowen

饰：Self - Woods Hole Oceanographic Inst

Robert Mulvaney

饰：Self - British Antarctic Survey

Carolyn Shoemaker

饰：Self - Astronomer, Lowell Observatory

Gerard Fryer

饰：Self - Pacific Tsunami Warning Centre

Giovanni Orsi

饰：Self - Volcanologist, The Vesuvius Observatory

Lee Kump

饰：Self - Geologist, Penn State University

Jonathan Keeble

Jonathan Keeble

饰：Self - Narrator (UK)

Hank Heasler

饰：Geologist, Yellowstone National Park

Shelton Johnson

饰：Self - Park Ranger, Yosemite National Park Service

Andrew Lambert

Andrew Lambert

饰：Self - King's College London

Peter de Menocal

Peter de Menocal

饰：Self - Ocean Geologist, Columbia Univ

Simon Boxall

饰：Self - University of Southampton

Dougal Jerram

饰：Self - Earth Scientist, Durham University

Ken Tankersley

饰：Self - Anthropologist, University of Cincinnati

Fekri Hassan

饰：Self - Geologist, Univ College London

Mark Boslough

Mark Boslough

饰：Self - Physicist, Sandia National Laboratories

Geoffrey Notkin

饰：Self - Aerolite Meteorites

Brittany Brand

饰：Self - Geologist, University of Washington

Adrian Pfiffner

饰：Self - Geologist

Bob Stern

Bob Stern

饰：Self - Geoscientist, University of Texas

Marcia McNutt

饰：Self - Monterey Bay Aquarium Research Inst

Dennis Jenkins

饰：Self - Archaeologist, University of Oregon