Elenco (na ordem dos créditos)
Mike New
Self - Narrator
Dale Pearson
Self - Expedition Leader
Esteban Sarmiento
Self - Mammal Expert
Mark Peterson
Self - Professional Tracker
Bob Gimlin
Self - Scientist
Loren Coleman
Self - Cryptozoologist
Briggs Hall
Self - Washington State Wildlife Veterinarian, Retired
Jamie Seymour
Self - Director, Tropical Stinger Research Unit, James Cook University
John Freitas
Self - Bigfoot Hunter
Nell Hamm
Self - Eyewitness
Martine Colette
Self - Founder, The Wildlife Waystation
Jo-Jo Christiansen
Gene Hagen
Self - Animal Tracker
Richard Noll
Self - Researcher
Arlene Gaal
Self - Historian and Ogopogo Archivist
St. James Davis
Self - Attack Victim
Jerry Hein
Self - Bigfoot Researcher
Joe Fox
Self - Professor of Biology, Texas A&M University
John Finnerty
Self - Associate Professor, Boston University Marine Program
Jay Epping
Self - Veterinarian
Shane Hobel
Self - Wilderness Expert
Krissy Eliot
Self - Journalist
Terry Wolf
Self - Former Wildlife Director, Lion Country Safari
Margaret Carlson
Self - Yurak Tribal Member
Jim Hamm
Alwin Rideout
Self - Safety Diver
Matt Orr
Grace Knowlton
Arvada Fisher
Self - Eyewitness, Miwuk Tribal Member
Delphine Derikson
Self - Native Legends Expert
Bill Steciuk
Self - Crypto Investigator Ogopogo
Ajiro Gunji
Self - Fisherman
Hogan Sherrow
Self - Primatologist
Bob Olson
Tom Steenburg
Amanda Schluttner
Ed Bousfield
Self - Former Senior Scientist, National Museum of Natural Sciences
Chris Jones
Self - Marine Biologist
Brian Werner
Self - Executive Director, Tiger Missing Link Foundation
Richard Haedrich
Self - Professor Emeritus, Department of Biology, Memorial University
Robert Strain
Willard Carlson Jr.
Self - Eyewitness, Yurok Tribal Member
Sean Viloria
Michael Kingsford
Self - Biologist, James Cook University
Ted Storey
Bradley Rideout
Don Sherman
John Rorabeck
Self - Eel Fisherman
Len Melnyk
Self - Dive Master
Effie Colbourne
Ladonna Davis
Will Gergits
Self - Behavioral Geneticist, Therion International
Dorian Tunnel
Bill Evans
Self - Expedition Guide
Kirk Orr
Michael Anderson
Self - Jellyfish Attack Victim
Makal Mann
Jim Myers
Self - Bigfoot Historian
Evan Tunnel
Wilbert Nez
Self - Navajo Nation Resident
Rob Wilson-Storey
David Garshelis
Self - Biologist
Naoto Honda
Self - Nomura Jellyfish Researcher
Noah Fierer
Richard Conklin
Self - Stamford Police Department
Scott Lope
Self - Former Director, Big Cat Rescue
Bruce McCord
Self - Professor of Forensic Science, Florida International University
Richard Vander Voort
Self - ROV Chair, The Marine Institute
Adrian Dorst
John M. Casselman
Self - Adjunct Professor, Department of Biology, Queens University
Jessica Weigers
James Dean Beaulieu
Fred Parsons
David Severns
Jeremy Holden
Self - Photographer
Christy Carr
Self - DNA Expert, Biodiversity Institute of Ontario, University of Guelph