Steven Kearney

饰：Himself - Narrator

Mike Capps

饰：Himself - Technology Analyst

Nick Pope

饰：Himself - Military Analyst

Randy Cerveny

饰：Himself - Meterologist: Arizona State University

Andrew Gough

饰：Himself - Journalist

Mike Pavelec

饰：Himself - Miiitary Historian: National Defense University

Brittany Brand

饰：Herself - Geologist: Boise State University

Roland Kays

饰：Himself - Biologist: North Carolina Museum of Natural Sciences

Nick Hansen

饰：Himself - Military Analyst: Stanford University

George Kourounis

饰：Himself - Storm Chaser

David Rohl

饰：Himself - Author: The Lost Testament

Mark Altaweel

饰：Himself - Archaeologist: University College London

Amanda Marchetti

饰：Herself - Satellite Imagery Analyst

Chandra Wickramsinghe

饰：Himself - Astrobiologist: University of Buckingham

Simon Agass

饰：Himself - Earth Observation Specialist

Francis Firebrace

饰：Himself - Aboriginal Australian

罗纳德·威尔逊·里根

Ronald Wilson Reagan

饰：Himself

Johnny Isla

饰：Himself - Archaeologist: Nasca-Palpa Project

Angela Micol

饰：Herself - Amateur Archaeologist

Stephanie Moser

饰：Herself - Archaeologist: University of Southhampton

James W. Huston

饰：Self - Author

Mark Horton

饰：Self - Archaeologist

Sara Carter

饰：Self - Journalist

焦立中

Leroy Chiao

饰：Self - Former ISS Astronaut

Klint Janulis

饰：Self - Archaeologist

Jess Peláez

饰：Self - Volcanologist

Nick Petford

饰：Self - Geologist

Sheila Redman Hoffman

饰：Self

Aidan Dodson

饰：Self - Egyptologist

Adrian Gilbert

饰：Self - Author

Michael Rampino

Michael Rampino

饰：Self - Earth Scientist: New York University

Dougal Jerram

饰：Self - Earth Scientist

Akram Elias

饰：Self - Freemason Historian

大卫·格恩

David Grann

饰：Self - Author: The Lost City of Z

Chief Almir Surui

饰：Self - Surui Leader

Jim Denevan

饰：Self - Artist

Bruce Blair

Bruce Blair

饰：Self - Security Analyst

John Leboutillier

饰：New York 6th]

Yonathan Mizrachi

Yonathan Mizrachi

饰：Self - Archaeologist

Doug Vakoch

饰：Self - Astrobiologist

Ralph Lorenz

饰：Self - Geologist

Christopher Tuttle

饰：Self - Archaeologist

Seth Porges

饰：Self - Journalist

Nick Middleton

饰：Self - Geographer

Marc D'Antonio

饰：Self - Image Analyst

Tracy Fanara

饰：Self

Andrew Robertshaw

饰：Self - Military Historian

Jim Marrs

饰：Self - Journalist

Tim Mousseau

饰：Self - Biologist

Heather Elizabeth Osborn

饰：Self - Folklorist

大卫·布林

David Brin

饰：Author: The Postman

Devin Dennie

饰：Self

Dan Durda

饰：Self - Astronomer: Southwest Research Institute

Max Maconachy

饰：Self - Journalist

Stanton Friedman

饰：Self - Nuclear Physicist

Rami Arav

饰：Self - Archaeologist

Marshall Trimble

饰：Self - Arizona Official State Historian