
| Title | Year | Status | Character |
|---|
| El hormiguero | 2010 | TV Series | Himself - Guest |
| Actor | 2010 | Short | Himself |
| Rock Star | 2010 | Short | Himself |
| What If Cannabis Cured Cancer | 2010 | Documentary | Narrator (voice) |
| Call of Life | 2010 | Documentary | Narrator (voice) |
| Bag It | 2010 | Documentary | Himself |
| Free Wheels East | 2010 | Documentary | Narrator |
| Every War Has Two Losers | 2009 | Documentary short voice | |
| The Making of Anton AKA Trapped | 2009 | Video documentary | Himself |
| Independent Lens | 2005-2009 | TV Series documentary | Narrator / Himself |
| With One Voice | 2009 | Documentary | |
| Full Color Football: The History of the American Football League | 2009 | TV Series documentary | Narrator |
| Os Mistérios de Lisboa | 2009 | Documentary | Narrator (voice) |
| Lords of Nature: Life in a Land of Great Predators | 2009 | Video documentary voice | |
| Huxley on Huxley | 2009 | Documentary | Narrator (voice) |
| Jose Canseco: Last Shot | 2008 | TV Movie documentary | Narrator |
| P.O.V. | 2008 | TV Series documentary | Himself / Narrator |
| Stealing America: Vote by Vote | 2008 | Documentary | Narrator |
| Healing Words: Poetry and Medicine | 2008 | Video documentary | Narrator |
| Alaska Far Away: The New Deal Pioneers of the Matanuska Colony | 2008 | Documentary | Narrator |
| Imagine a School... Summerhill | 2008 | Documentary | Himself |
| Nature Untamed | 2008 | TV Series documentary | Himself / Narrator |
| Save the American Wild Horse | 2007 | Documentary short | Himself |
| One Man, One Cow, One Planet | 2007 | Video documentary | Himself (voice) |
| Hippies | 2007 | TV Movie documentary | Himself |
| Soldiers of Conscience | 2007 | Documentary | Narrator |
| Fog City Mavericks | 2007 | Documentary | Himself - Narrator (voice) |
| American Experience | 1999-2007 | TV Series documentary | Himself / Narrator |
| Jukebox: From Edison to Ipod | 2007 | Documentary | Himself |
| Strange Culture | 2007 | Documentary | Himself |
| Darryl Henriques Is in Show Business | 2006 | Documentary short | Himself |
| A/k/a Tommy Chong | 2006 | Documentary | Himself |
| The Drug Years | 2006 | TV Mini-Series documentary | Himself |
| Gonzo Utopia | 2006 | Documentary short | Himself |
| Nature | 1998-2006 | TV Series documentary | Narrator |
| The Damnedest, Finest Ruins | 2006 | Video documentary | Narrator |
| About Face: The Story of the Jewish Refugee Soldiers of World War II | 2005 | Documentary | |
| The Tribe | 2005 | Documentary short | Narrator (voice) |
| The Sacramento: River of Life | 2005 | Documentary | Narrator |
| Texas Gold | 2005 | Documentary short | Narrator |
| The Sixties: The Years That Shaped a Generation | 2005 | TV Movie documentary | Himself |
| Destination Lost | 2005 | TV Movie documentary | Narrator (voice) |
| The Green Bus v. the White House | 2005 | Documentary | Narrator |
| Commune | 2005 | Documentary | Himself - Black Bear Resident |
| Farming the Seas | 2005 | TV Movie documentary | Himself - Narrator |
| Guns, Germs, and Steel | 2005 | TV Series documentary | Narrator |
| Koursk: Un sous-marin en eaux troubles | 2004 | TV Movie documentary | Narrator |
| There's Something About W | 2004 | Video documentary short | Narrator |
| Sierra Center Stage | 2004 | TV Series | Himself - Voiceover Introduction |
| Oil on Ice | 2004 | Documentary | Narrator (voice) |
| Carlos Castaneda: Enigma of a Sorcerer | 2004 | Documentary voice | |
| Dreaming of Tibet | 2003 | Documentary | |
| Hollywood's Magical Island: Catalina | 2003 | Documentary | Narrator (voice) |
| Femme Fatale: From Dream to Reality | 2003 | Video short | Himself |
| Live at the Shrine! John Williams and the World Premiere of 'E.T.: The Extra Terrestrial': The 20th Anniversary | 2002 | Video | Himself |
| The E.T. Reunion | 2002 | Video documentary short | Himself |
| Lying for a Living | 2002 | Video documentary | Himself |
| Seth Eastman: Painting the Dakota | 2002 | TV Movie documentary | Himself / Narrator |
| E.T. the Extra-Terrestrial: 20th Anniversary Celebration | 2002 | Video documentary | Himself |
| Unprecedented: The 2000 Presidential Election | 2002 | Documentary | Narrator (voice) |
| Out of the Blue | 2002 | Video documentary | Himself - Narrator (voice) |
| Stay Tuned | 2002 | Video documentary | Himself - Host |
| Founding Brothers | 2002 | TV Movie documentary | Thomas Jefferson (voice) |
| Empty Oceans, Empty Nets | 2002 | TV Movie documentary | Himself - Narrator |
| Polanski y los ojos del mal | 2002 | TV Movie documentary | Himself |
| E.T. The Extra-Terrestrial 20th Anniversary Special | 2002 | TV Movie documentary | Himself |
| A Walk to Remember: Interviews | 2002 | Video documentary short | Himself |
| The Living Edens | 1997-2001 | TV Series documentary | Narrator |
| Voices of the Sierra Tarahumara | 2001 | Documentary | Narrator |
| Quartzite's Fall: A Wilderness Tale | 2001 | Documentary | Narrator |
| Sex in the 20th Century | 2001 | TV Movie documentary | Himself (Narrator) |
| The Shape of Life | 2001 | TV Series documentary | Himself - Narrator / Narrator |
| The 72nd Annual Academy Awards | 2000 | TV Special | Himself - Announcer |
| Founding Fathers | 2000 | TV Mini-Series documentary | Thomas Jefferson |
| Future Shark | 2000 | TV Movie documentary | Narrator (voice) |
| Rome: Power & Glory | 1999 | Video documentary | Narrator |
| Still Missing | 1999 | Documentary short | Himself - Narrator |
| When Buffalo Roam | 1999 | Short documentary | Himself - Narrator |
| Neighborhoods: The Hidden Cities of San Francisco - The Fillmore | 1999 | TV Movie documentary | Voice of Urban Renewal (voice) |
| Kontum Diary: The Journey Home | 1999 | TV Movie documentary | Narriator (voice) |
| African Odyssey | 1998 | TV Movie documentary | Narrator |
| A Dreamer and the Dreamtribe | 1998 | Documentary | Narrator (voice) |
| Frontier: Legends of the Old Northwest | 1998 | TV Mini-Series documentary | Narrator (voice) |
| Karmapa - jumaluuden kaksi tietä | 1998 | Documentary | Himself - Narrator (English version, voice) |
| HBO First Look | 1998 | TV Series documentary | Himself |
| Titanic: Breaking New Ground | 1998 | TV Special documentary | Narrator (voice) |
| Beneath the Surface: The Making of 'Sphere' | 1998 | TV Movie documentary | Himself (uncredited) |
| Les Diggers De San Francisco | 1998 | Documentary | Himself |
| Still Missing | 1997 | TV Movie documentary | Narrator |
| The Secrets of 007: The James Bond Files | 1997 | TV Movie documentary | Narrator (voice) |
| 21st Century Jet: The Building of the 777 | 1996 | Documentary | Narrator (voice) |
| The Making of 'E.T. The Extra-Terrestrial' | 1996 | Video documentary | Himself |
| The Making of 'Unforgettable' | 1996 | Video documentary short | Himself |
| Unforgettable: Behind the Scenes | 1996 | Video documentary short | Himself |
| Unforgettable: Star & Crew Sound Bites | 1996 | Video documentary short | Himself |
| The West | 1996 | TV Series documentary | Himself - Narrator |
| Cyclone! | 1995 | TV Movie documentary | Narrator |
| The History of Rock 'n' Roll | 1995 | TV Series documentary | Himself |
| The First 100 Years: A Celebration of American Movies | 1995 | TV Movie documentary | Narrator |
| American Cinema | 1995 | TV Series documentary | Narrator |
| The Peyote Road | 1994 | Documentary | Narrator (voice) |
| Primer plano | 1993 | TV Series | Himself |
| National Geographic Specials | 1993 | TV Series documentary | Himself - Narrator |
| The Roots of Roe | 1993 | TV Movie documentary | James Marris (voice) |
| Orson Welles: What Went Wrong? | 1992 | TV Movie documentary | Narrator (voice) |
| The Pacific Century | 1992 | TV Mini-Series documentary | Narrator |
| Cinema 3 | 1992 | TV Series | Himself |
| Earth and the American Dream | 1992 | Documentary | Reader (voice) |
| Wildlife Wars USA: Bears Under Siege | 1991 | TV Movie documentary | Narrator |
| The New Range Wars | 1991 | TV Movie documentary | Himself - Host |
| Flashing on the Sixties: A Tribal Document | 1990 | Video documentary | Himself |
| Downwind/Downstream | 1989 | Documentary | Narrator (voice) |
| Lunettes noires pour nuits blanches | 1989 | TV Series | Himself |
| It Was 20 Years Ago Today | 1987 | Documentary | Himself |
| Contrary Warriors: A Film of the Crow Tribe | 1985 | Documentary | Narrator |
| Troupers | 1985 | Documentary | Himself |
| The Four Corners: A National Sacrifice Area? | 1983 | TV Movie documentary | Narrator |
| Haight Ashbury: The Beat of a Generation | 2012 | Documentary completed | Himself - Founding member of The Diggers (voice) |
| Here Is Something Beautiful (Etc. | | Documentary announced | Himself |
| Revolution: The Legacy of the Sixties | | Documentary filming | Himself |
| The Light | | Documentary filming | Himself |
| Belo Monte: After the Flood | 2016 | Video documentary voice | |
| The Reality of Truth | 2016 | Documentary | Himself |
| Natural Heroes | 2016 | TV Series documentary | Himself |
| A Director Prepares: Bobby Roth's Masterclass | 2016 | TV Series documentary | Himself |
| Paying the Price for Peace | 2015 | Documentary voice | |
| Sands of War | 2015 | Documentary short | Narrator |
| Robert Bly: A Thousand Years of Joy | 2015 | Documentary | Himself |
| 2015 Primetime Creative Arts Emmy Awards | 2015 | TV Movie | Himself - Winner: Outstanding Narrator |
| A Coup in Camelot | 2015 | Documentary | Narrator (voice) |
| Dirty Gold War | 2015 | Documentary | Narrator (voice) |
| Jack Nicklaus: The Making of a Champion | 2015 | TV Movie documentary | Narrator (voice) |
| River's Journey | 2014 | Documentary short | Narrator (voice) |
| The Roosevelts: An Intimate History | 2014 | TV Series documentary | Narrator |
| The Sixties | 2014 | TV Mini-Series documentary | Himself - Actor |
| Making 'Southern Comfort' | 2014 | Video short | Himself |
| Ahh... San Francisco | 2014 | Documentary short | Narrator (voice) |
| Walking in Two Worlds | 2014 | Documentary voice | |
| The Real History of Science Fiction | 2014 | TV Mini-Series documentary | Himself |
| Angel Azul | 2014 | Documentary | Narrator (voice) |
| Rise Above the Mark | 2014 | Documentary | Himself |
| The Invisible Peak | 2014 | Documentary short | Narrator (voice) |
| The Intrepid: Discovering Lincoln's Balloon Corps | 2013 | Documentary voice | |
| Journey of Hanuman | 2013 | Video documentary | |
| Kennesaw: One Last Mountain | 2013 | Documentary | Himself (narrator) |
| Paolo Soleri: Beyond Form | 2013 | Documentary | Narrator |
| The Ghost Army | 2013 | Documentary | Narrator (voice) |
| Be Home Soon: Letters from My Grandfather | 2012 | Documentary voice | |
| Democracy Now! | 2012 | TV Series | Himself |
| Long Distance Revolutionary: A Journey with Mumia Abu-Jamal | 2012 | Documentary | Himself |
| Village Music: Last of the Great Record Stores | 2012 | Documentary | Himself |
| Dangerous Waters | 2012 | TV Series | Himself - Narrator (voice) |
| Cages of Shame | 2012 | Documentary | Narrator |
| 30 for 30 | 2012 | TV Series documentary | Narrator |
| The National Parks: America's Best Idea | 2009-2012 | TV Mini-Series documentary | Himself - Narrator |
| For the Love of the Music: The Club 47 Folk Revival | 2012 | Documentary voice | |
| The Dust Bowl | 2012 | TV Mini-Series documentary | Himself - Narrator |
| Achuar vs Talisman Energy: The Struggle Continues | 2011 | Documentary short | Narrator (voice) |
| Prohibition | 2011 | TV Mini-Series documentary | Himself - Narrator |
| Stage Left: A Story of Theater in San Francisco | 2011 | Documentary | Himself |
| National Geographic Explorer | 1999-2011 | TV Series documentary | Narrator / Himself / Himself - Narrator |
| On the Trail of Easy Rider: 40 Years On... Still Searching for America | 2011 | TV Series documentary | Himself |
| Green Fire | 2011 | Documentary | Aldo Leopold (voice) |
| These Amazing Shadows | 2011 | Documentary | Himself |
| Connected: An Autoblogography About Love, Death & Technology | 2011 | Documentary | |
| Don't Get Sick After June: American Indian Healthcare: | 2010 | Video documentary | |
| The People's Nepal | 2010 | Video documentary | Narrator (voice) |
| Brain Fitness | 2010 | TV Series documentary | Himself - Host |
| Great Migrations | 2010 | TV Mini-Series documentary | Himself - Narrator |
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