Filmography
| 2025 | The Art of Adventure · as Self |
| 2022 | The Last Stand · as Wade Davis |
| 2021 | History by the Numbers (TV Series) · as Self - Author, Into The Silence: The Great War, Mallory, And The Conquest Of Everest |
| 2020 | Cursed Films (TV Series) · as Self |
| 2015 | Fractured Land · as Self (anthropologist) |
| 2013 | Neurons to Nirvana · as Self |
| 2013 | Portal to the Unknown (TV Series) · as Self - Ethno Botanist |
| 2010 | Schooling the World · as Self - Ethnpbotanist National Society |
| 2010 | Weird or What? (TV Series) · as Self - Anthropologist & Explorer |
| 2008 | Peyote to LSD: A Psychedelic Odyssey · as Self / Presenter |
| 2008 | Starz presents Zombie Mania · as Himself - Anthropologist |
| 2007 | The 11th Hour · as Self - Explorer-In-Residence, National Geographic Society |
| 2006 | Northern Mysteries (TV Series) · as Self |
| 2006 | Dossiers mystère (TV Series) · as Self |
| 2004 | George Stroumboulopoulos Tonight (TV Series) · as Self |
| 2002 | Timeshift (TV Series) · as Self - Author, 'into The Silence' |
| 2002 | In Search of (TV Series) · as Self - Author, The Serpent And The Rainbow |
| 2002 | Taboo (TV Series) · as Self - National Geographic Explorer In-Residence |
| 1998 | History's Mysteries (TV Series) · as Self |
| 1996 | Life and Times (TV Series) · as Self |
| 1994 | Ancient Mysteries (TV Series) · as Self |
| 1993 | Modern Marvels (TV Series) · as Self - Ethnobotanist And Explorer: Ngs |
| 1991 | Charlie Rose (TV Series) · as Self - Guest |
| 1985 | Explorer (TV Series) · as Self - Anthropologist: National Geographic Explorer In-Residence |