Director/a
Gary Hochman
DIRECTOR/A
Reparto (por orden de créditos)
Marsheli Billy
Self - Native Explorers
Greg Brown
Preparator Emeritus, University of Nebraska State Museum
Dan Fisher
Self - Forensic Paleontologist, University of Michigan
Carl Hart
Self - Nebraska Department of Roads
Jerry Longe
Self - Narrator(voice)
Curt Mitteis
Self - Miteis Gravel
Mark Norell
Self - Curator of Paleontology, American Museum of Natural History
Ross Secord
Self - Paleontologist, University of Nebraska State Museum
Morris Skinner
Self - Paleontologist, American Museum of Natural History
Kent Smith
Self - Paleontologist, Oklahoma State University
Kris Thompson
Self - Mammoth Site, Hot Springs, South Dakota
Shane Tucker
Self - Highway Paleontologist, University of Nebraska State Museum
Michael R. Voorhies
Self - Paleontologist Emeritus, University of Nebraska State Museum