Calificación
Reparto

Craig Sechler
Self - Narrator (voice)

Gerry Moffatt
Self - Explorer

William Whatley
Self - Colorado Witness

Michael Dailey
Self - Wyoming Witness

Dorsey Armstrong
Self - Wyoming Witness

Ken Avinon
Self - Forest Protection Officer

Cindy Avinon
Self - Ken's Wife

Jeffrey Meldrum
Self - Researcher, Idaho State University (as Dr. Jeff Meldrum)

Reba Jo Teran
Self - Eastern Shoshone Tribe

Dawa
Self - Sherpa

Ian Redmond
Self - Primatologist

Lhakpa Dolma
Self - Yeti Attack Victim