Director/a
Sean MacLeod Phillips
DIRECTOR/A
Reparto (por orden de créditos)
Liev Schreiber
Self - Narratorvoice
Jennifer Aguilar
Female Grad Student
Michael Ashcraft
South Dakota Scientist 2
Paul W. Burmaster
North Dakota Collector #1
Albert J. Burnes
Male Grad Student
Daniel Coldham
Phosphate Mine Worker
Toni Dodd
Pamela Everhart
Derek Gamble
Chris Glaze
Michael J. Everhart
Curtis Hawkins
Jerry Hoffman
Charles M. Sternberg
Cheryl Hunter
Dr. Betsy Richards
Efi Kamara
Doug Kisgen
Levi Sternberg
Chris Koeberl
Netherlands Scientist #2
Kathleen Leighton
Texas Collector 1
Brian Lemmons
Michael McConnohie
George Sternberg (60s)voice
Nissam Mina
Phosphate Mine Foreman
Casey Myers
Texas Collector 2
Dan Nichols
South Dakota Scientist 1 - Martin
Frank Novak
George Sternberg (60s)
Liam Owen
Photographer
Shari Phillips
Camping Mothervoice
Thea Phillips
Camping Daughtervoice
James Rudnick
Australian Scientist 1
Charlotte Salem
Camping Daughter
Joe Salem
Camping Father
Michael Sorich
South Dakota Scientist 1voice
Jeffrey Staab
George F. Sternberg (30s)
Kevin Stidham
Australian Scientist 2
Walley Thornton
Reporter
Jack van Dijk
Netherlands Scientist #1
Caroline Vinciguerra
Camping Mother
Christopher Wheatley
North Dakota Collector #2
Chris Zegers
Dutch Narratorvoice
C.J. Johnson
Road Workeruncredited