| 2023 | Robert De Niro - Stiller Antiheld | Self (archive footage) |
| 2023 | Downwind | Self Narrator |
| 2021 | Benedict Arnold: Hero Betrayed | Narrator |
| 2020 | Can Art Stop a Bullet: William Kelly's Big Picture | Self |
| 2020 | The Berrigans: Devout and Dangerous | Himself |
| 2019 | Bench | |
| — | Vigilante: Georgia’s Vote Suppression Hitman | Presentator |
| 2018 | Die Kennedy-Saga | Narrator (voice) |
| 2017 | Is O.J. Innocent? The Missing Evidence | Narrator (voice) |
| 2017 | Citizen Clark... A Life of Principle | Narrator |
| 2017 | Dreamland: Mark Twain's Journey to Jerusalem | Narrator |
| 2016 | Back to the Lane | |
| 2015 | Robert Bly: A Thousand Years of Joy | Himself |
| 2014 | Holbrook/Twain: An American Odyssey | Himself |
| 2013 | Tales from the Warner Bros. Lot | Self |
| 2013 | The Making of the Wonderful Wizard of Oz | Narrator |
| 2013 | Jerzy Popieluszko: Messenger of the Truth | Narrator (voice) |
| 2013 | Making 'Badlands' | Self |
| 2012 | Death By China | Narrator |
| 2012 | Brothers on the Line | Narrator |
| 2012 | 8 | Theodore Olson |
| 2011 | Miller's Tale | Self |
| 2011 | 9/11 Truth: Hollywood Speaks Up | Himself |
| 2011 | Sharkwise | Narrator |
| 2011 | Holy Man: The USA vs. Douglas White | Narrator |
| 2010 | The Kennedy Detail | Narrator |
| 2010 | A Conversation with Martin Sheen | Self |
| 2009 | White House Revealed | Self- Narrator (voice) |
| 2009 | Franz Jagerstätter: A Man of Conscience | Franz Jagerstätter (voice) |
| 2009 | Söndagsparty med Filip & Fredrik | |
| 2008 | Notes on an American Film Director at Work | Self |
| 2008 | Vietnam: American Holocaust | Voice |
| 2008 | Pirate for the Sea | Himself |
| 2008 | Man in the Mirror | Fallen Soldier / JC Super Star / Man in Black |
| 2008 | They Killed Sister Dorothy | Narrator |
| 2008 | Dean and Me: Roadshow of an American Primary | Self |
| 2007 | Confessions Of An Innocent Man | Himself - Narrator |
| 2007 | Eyewitness DVD: Weather | Narrator |
| 2007 | Andrew Jackson: Good, Evil & The Presidency | Narrator |
| 2006 | 50 Films to See Before You Die | Self |
| 2006 | The Politics of the Dead Zone | Self |
| 2006 | 10 Days That Unexpectedly Changed America | |
| 2006 | America's Game: The Super Bowl Champions | Narrator (voice) |
| 2005 | James Dean: Forever Young | Narrator (voice) |
| 2004 | Happy Birthday Oscar Wilde | Self |
| 2004 | Jerusalemski sindrom | |
| 2003 | Milost mora | Frederik |
| 2003 | The Perilous Fight: America's World War II in Color | Narrator |
| 2003 | Absence of Malick | Self |
| 2003 | The Commission | Dep. Atty. Gen. Nicholas Katzenbach |
| 2003 | Celebrity Poker Showdown | Self |
| 2002 | Rosy-Fingered Dawn: A Film on Terrence Malick | Self |
| 2002 | Straight Up: Helicopters in Action | Narrator (voice) |
| 2002 | Bringing Down a Dictator | Narrator (voice) |
| 2001 | National Geographic - Der Vatikan | Narrator |
| 2001 | Stockpile: The New Nuclear Menace | Narrator |
| 2001 | Enemies of War | Narrator |
| 2000 | On Great White Wings: The Wright Brothers and the Race for Flight | Narrator |
| 1999 | In Dreams: The Roy Orbison Story | Self |
| 1999 | Forget Me Never | Jack |
| 1999 | Gunfighter | The Stranger |
| 1999 | D.R.E.A.M. Team | J.W. Garrison |
| 1999 | A Stranger in the Kingdom | Sigurd Moulton |
| 1999 | The Twelve Apostles | Narrator (voice) |
| 1999 | The Darklings | Ira Everett |
| 1999 | Chicken Soup for the Soul | |
| 1999 | Ninth Street | Father Frank |
| 1998 | Holes in Heaven | Narrator (voice) |
| 1998 | The Elevator | Sarge |
| 1998 | LateLine | |
| — | Lost & Found in Cleveland | Dr. Austin Raybourne |
| 2022 | Spider-Man: All Roads Lead to No Way Home | Self (archive footage) |
| 2022 | The Jennifer Hudson Show | |
| 2021 | Judas and the Black Messiah | J. Edgar Hoover |
| 2021 | 12 Mighty Orphans | Doc Hall |
| 2020 | A West Wing Special to Benefit When We All Vote | President Josiah Bartlet |
| 2020 | Princess of the Row | John Austin |
| 2019 | The Devil Has a Name | Ralph |
| 2018 | Come Sunday | Oral Roberts |
| 2018 | The Boxcar Children: Surprise Island | James Alden (voice) |
| 2017 | Anne of Green Gables: The Good Stars | Matthew Cuthbert |
| 2017 | Anne of Green Gables: Fire & Dew | Matthew Cuthbert |
| 2016 | Popstar: Never Stop Never Stopping | Martin Sheen |
| 2016 | Regeln spielen keine Rolle | Noah Dietrich |
| 2016 | Anne of Green Gables | Matthew Cuthbert |
| 2016 | Glaube und Meer | Father Douglas |
| 2015 | Grace and Frankie | Robert Hanson |
| 2015 | Badge of Honor | Captain Daniel Richards |
| 2015 | Unity | Narrator (voice) |
| 2014 | The Amazing Spider-Man 2: Rise of Electro | Uncle Ben (uncredited) |
| 2014 | Selma | Frank Minis Johnson (uncredited) |
| 2014 | Last Week Tonight mit John Oliver | Self |
| 2014 | Trash | Padre Juilliard |
| 2014 | Katies Blog | |
| 2014 | A Prayer for Rain | Warren Anderson |
| 2014 | The Boxcar Children | Grandfather Alden (voice) |
| 2014 | Marlon Brando - Der Harte und der Zarte | Self - Actor (archive footage) |
| 2013 | Salinger | Self - Actor |
| 2013 | Amazonia - Abenteuer im Regenwald | |
| 2013 | The Whale | Tom Nickerson |
| 2012 | The Amazing Spider-Man | Uncle Ben |
| 2012 | Auf der Suche nach einem Freund fürs Ende der Welt | Frank Petersen |
| 2012 | Anger Management | Martin Goodson |
| 2012 | Anger Management | Martin |
| 2012 | Rite of Passage: The Amazing Spider-Man Reborn | Himself |
| 2012 | Stella Days | Fr. Daniel Barry |
| 2011 | The Double - Eiskaltes Duell | Tom Highland |
| 2011 | Arrugas | (voice) |
| 2011 | Entdecke! | Himself - Narrator |
| 2010 | Dein Weg | Tom |
| 2010 | Never Sleep Again: The Elm Street Legacy | Self (archive footage) |
| 2010 | Who Do You Think You Are? | Self |
| 2009 | Love Happens | Donald, Burke's Father-in-Law |
| 2009 | Zuhause ist der Zauber los | Dante D'Enzo |
| 2009 | Die Echelon Verschwörung | Raymond Burke |
| 2009 | The Kid: Chamaco | Dr. Frank Irwin |
| 2008 | The Garden | Self |
| 2008 | The End of Poverty? | narrator |
| 2007 | Bordertown | George Morgan |
| 2007 | The Graham Norton Show | Self |
| 2007 | Talk to Me | E.G. Sonderling |
| 2007 | American Food Trip - mit Guy Fieri | Self |
| 2007 | Flatland | Arthur Square (voice) |
| 2006 | Departed - Unter Feinden | Queenan |
| 2006 | Bobby | Jack Stevens |
| 2006 | Warum das Elektroauto sterben musste | Narrator (voice) |
| 2006 | Studio 60 on the Sunset Strip | Radio Host |
| 2006 | The One Show | Self |
| 2005 | The Colbert Report | |
| 2004 | Klaus Nomi: The Nomi Song | Self (archive footage) |
| 2004 | Tell Them Who You Are | Self |
| 2003 | Two and a Half Men | Harvey |
| 2003 | The Ellen DeGeneres Show | Self |
| 2002 | Catch Me If You Can | Roger Strong |
| 2001 | O - Vertrauen, Verführung, Verrat | Coach Duke Goulding |
| 1999 | The West Wing | President Josiah Bartlet |
| 1999 | Get the Dog - Verrückt nach Liebe | Millstone |
| 1999 | Zeitreise in die Katastrophe | Grifasi |
| 1999 | Mörderisches Doppelspiel | Bill Peterson |
| 1999 | Total Recall 2070 | |
| 1999 | Storm | General James Roberts |
| 1999 | Texas Story | Grandpa Sparta |
| 1998 | Spacecenter Babylon 5 - Der Fluss der Seelen | Soul Hunter |
| 1998 | Free Money | Guard |
| 1998 | Monument Ave. | Hanlon |
| 1998 | Shadrach - Die Heimkehr des Fremden | Narrator (voice) |
| 1998 | Voyage of Terror - Kreuzfahrt des Schreckens | Henry Northcutt |
| 1998 | Death Row - Nachricht aus der Todeszelle | Michael's Father |
| 1997 | Spawn | Jason Wynn |
| 1997 | The View | Self |
| 1997 | The View | Self - Guest |
| 1997 | Ort der Wahrheit | Sir |
| 1997 | Hostile Waters - Im Fahrwasser des Todes | Aurora Skipper |
| 1997 | Medusa's Child - Atombombe an Bord der 737 | President |
| 1997 | The Making of 'Spawn' | Himself |
| 1997 | Gun | Van Guinness |
| 1997 | Titanic: Dem Mythos auf der Spur | Narrator |
| 1997 | An Act of Conscience | Narrator |
| 1996 | Chaos City | Ray Harris / Ray Crawford |
| 1996 | Alf - Der Film | Colonel Gilbert Milfoil |
| 1996 | E! True Hollywood Story | |
| 1996 | Heimatfront | Bob Collier |
| 1996 | The Rosie O'Donnell Show | Self - Guest |
| 1996 | Mexico | Narrator (voice) |
| 1996 | Entertaining Angels: The Dorothy Day Story | Peter Maurin |
| 1996 | Blacklist: Hollywood on Trial | Dalton Trumbo |
| 1996 | Sacred Cargo | Father Andrew Kanvesky |
| 1995 | Hallo, Mr. President | A.J. MacInerney |
| 1995 | Dead Presidents | The Judge |
| 1995 | Hundert und eine Nacht | Mute Actor in Hollywood (uncredited) |
| 1995 | Dillinger and Capone | John Dillinger |
| 1995 | Gospa | Father Jozo Zovko |
| 1995 | Born Wild | Dan Walker |
| 1995 | Tie Break | Gil Robbins |
| 1995 | The Bomber Boys | Jeff Snyder |
| 1995 | The Sixth Sun: Mayan Uprising in Chiapas | Voice of Marcos |
| 1994 | Roswell - Die Wahrheit ruht hier | Townsend |
| 1994 | Inside the Actors Studio | Self |
| 1994 | Ermordet am 16. Juli | Captain Swaggert |
| 1994 | Boca | Jesse James Montgomery |
| 1994 | Guns of Honor | Jackson Baines Hardin (Ole Devil) |
| 1994 | Die Hölle von Kambodscha | Francis Labeck |
| 1994 | Trigger Fast | Jackson Baines Hardin / Ole Devil |
| 1994 | One of Her Own | Asst. Dist. Atty. Pete Maresca |
| 1994 | Eyewitness: Dinosaur | Narrator |
| 1994 | Hits! | Kelly |
| 1994 | Marlon Brando: The Wild One | Self |
| 1994 | Eyewitness | Narrator |
| 1994 | Bah, Humbug!: The Story of Charles Dickens' 'A Christmas Carol' | Narrator |
| 1994 | National Geographic: Last Voyage of the Lusitania | Narrator |
| 1993 | Hot Shots! Der zweite Versuch | Capt. Benjamin L. Willard (uncredited) |
| 1993 | Gettysburg | Gen. Robert E. Lee |
| 1993 | Late Night with Conan O'Brien | Self - Guest |
| 1993 | Danger Sign | Lt. Brock |
| 1993 | Alex Haley's Queen | James Jackson Sr. |
| 1993 | The Killing Box | Gen. Haworth |
| 1993 | Hearts of Hot Shots! Part Deux—A Filmmaker's Apology | |
| 1993 | The Last P.O.W.? The Bobby Garwood Story | William F.(Ike) Eisenbraun |
| 1993 | Alive: 20 Years Later | Narrator (voice) |
| 1993 | Braving Alaska | Narrator |
| 1993 | Braving Alaska | Narrator (voice) |
| 1993 | A Matter of Justice | |
| 1992 | The Tonight Show with Jay Leno | |
| 1992 | Die Wassermaschine | Chain Letter Voice (voice) (uncredited) |
| 1992 | Original Intent | Homeless Joe |
| 1991 | JFK - Tatort Dallas | Narrator (voice) (uncredited) |
| 1991 | Reise ins Herz der Finsternis | Self |
| 1991 | Anthony, das Kindermädchen | Anthony Wayne |
| 1991 | Bei Berührung Lebensgefahr | Frank Magenta |
| 1991 | Unschuldig angeklagt | Harold Hohne |
| 1991 | The Rites Of Mu | Narrator |
| 1990 | Captain Planet | Sly Sludge (voice) |
| 1990 | Ein fremder Klang | MSgt. Otis V. McKinney |
| 1990 | Cold Front - Ein Killer läuft Amok | John Hyde |
| 1989 | Die Simpsons | Real Seymour Skinner (voice) |
| 1989 | Geschichten aus der Gruft | Kraygen / Thomas Miller / Zorbin the Magnificent |
| 1989 | Moon Trek | Paul Andrews |
| 1989 | Beverly Hills Brats | Dr. Jeffrey Miller |
| 1989 | Operation Nightbreaker | Dr. Alexander Brown - Present |
| 1989 | Marked for Murder | Man in Park |
| 1989 | Another Time, Another Place | Richard Conley |
| 1988 | Ein Richter für Berlin | Herbert J. Stern |
| 1988 | Da | Charlie |
| 1988 | Promises to Keep | Himself |
| 1988 | Walking After Midnight | Self |
| 1987 | Wall Street | Carl Fox |
| 1987 | Das Ritual | Cal Jamison |
| 1987 | Siesta | Del |
| 1987 | Dear America - Briefe aus Vietnam | Alan (voice) |
| 1987 | The China Odyssey: Empire of the Sun | Narrator |
| 1987 | Conspiracy: The Trial of the Chicago 8 | James Marion Hunt |
| 1986 | Secrets of the Titanic | Himself (Narrator) |
| 1986 | Shattered Spirits | Lyle Mollencamp |
| 1986 | A State of Emergency | Alex Carmody |
| 1986 | Schlagzeile: Rufmord | Frank Kenley |
| 1986 | Die wahren Helden | Mitch Snyder |
| 1985 | The New Alfred Hitchcock Presents | Paul Dano |
| 1985 | The Fourth Wise Man | Artaban |
| 1985 | The Atlanta Child Murders | Chet Dettlinger |
| 1985 | Consenting Adult | Ken Lynd |
| 1985 | Broken Rainbow | Narrator (voice) |
| 1985 | Out of the Darkness | Eddie Zigo |
| 1985 | In the Name of the People | Narrator |
| 1985 | The Real Thing | Narrator (voice) |
| 1985 | Native Sons: Palestinians In Exile | Narrator |
| 1985 | Spaceflight | |
| 1984 | Der Feuerteufel | Captain Hollister |
| 1984 | The Guardian | Charlie Hyatt |
| 1983 | Dead Zone | Greg Stillson |
| 1983 | Kennedy | John F. Kennedy |
| 1983 | Herzen in Aufruhr | Robert Beckwith |
| 1983 | Choices of the Heart | Father Philan |
| 1983 | In the King of Prussia | Judge Samuel Salus II |
| 1983 | Mr. Attenborough and Mr. Gandhi | Self |
| 1982 | Gandhi | Vince Walker |
| 1982 | Enigma | Alex Holbeck |
| 1982 | Nature | Narrator (voice) |
| 1982 | Unter den Augen der Justiz | Frank Caldwell |
| 1982 | Champions | Tom Daley |
| 1982 | I Love Liberty | Self |
| 1982 | Centralia Fire | Narrator |
| 1981 | Ein perfekter Bruch | Stephen Booker |
| 1980 | Der letzte Countdown | Warren Lasky |
| 1979 | Apocalypse Now | Captain Benjamin Willard |
| 1979 | Adlerflügel | Pike |
| 1979 | Blind Ambition | John Dean |
| 1978 | Taxi!! | Taxi Driver |
| 1977 | Rolling Stone Magazine: The 10th Anniversary | Self |
| 1976 | Das Mädchen am Ende der Straße | Frank Hallet |
| 1976 | Treffpunkt Todesbrücke | Robby Navarro |
| 1975 | Saturday Night Live | Self - Cameo (uncredited) |
| 1975 | Saturday Night Live | Self - Host |
| 1975 | Sweet Hostage | Leonard Hatch |
| 1975 | The Last Survivors | Alexander William Holmes |
| 1974 | Badlands - Zerschossene Träume | Kit Carruthers |
| 1974 | California Kid | Michael McCord |
| 1974 | The Missiles of October | Attorney General Robert F. Kennedy |
| 1974 | The Execution of Private Slovik | Eddie Slovik |
| 1974 | The Missiles of October | Atty. Gen. Robert F. Kennedy |
| 1974 | The Story of Pretty Boy Floyd | Charles Arthur 'Pretty Boy' Floyd |
| 1974 | The Legend of Earl Durand | Luther Sykes |
| 1973 | The Catholics | Father Kinsella |
| 1973 | Toma | |
| 1973 | Message to My Daughter | John Thatcher |
| 1973 | Letters from Three Lovers | Vincent |
| 1973 | Love Story (US) | Frank Randolph |
| 1973 | A Prowler in the Heart | Tony Parrish |
| 1973 | Such Dust as Dreams Are Made On | Harlan Garrison |
| 1973 | Crime Club | Deputy Wilson |
| 1972 | Die Straßen von San Francisco | |
| 1972 | California Cops - Neu im Einsatz | |
| 1972 | Die Rache ist mein | Maj. Holliford |
| 1972 | Pursuit | Timothy Drew |
| 1972 | Damals im Sommer | Gary McCain |
| 1972 | Ghost Story | Frank |
| 1972 | Pickup on 101 | Lester Baumgartner |
| 1972 | Welcome Home, Johnny Bristol | Graytak |
| 1972 | When the Line Goes Through | |
| 1972 | No Drums, No Bugles | Ashby Gatrell |
| 1971 | Columbo | Karl Lessing |
| 1971 | Cannon | |
| 1971 | Mongo's Back in Town | Gordon |
| 1971 | Sarge | Dan |
| 1971 | Goodbye, Raggedy Ann | Jules Worthman |
| 1971 | Montserrat | |
| 1970 | Catch-22 - Der böse Trick | 1st Lt. Dobbs |
| 1970 | The Andersonville Trial | Captain Williams |
| 1970 | Matt Lincoln | Charles |
| 1970 | The Young Lawyers | Reverend Jimmy Haines |
| 1969 | Wo die Liebe hinfällt | Dr. Art Parmel |
| 1969 | Medical Center | |
| 1969 | Then Came Bronson | Nick Oresko |
| 1968 | Hawaii Fünf-Null | Eddie Calhao |
| 1968 | Hawaii Fünf-Null | Arthur Dixon |
| 1968 | Twen-Police | Danny Morgan |
| 1968 | Rosen für die Lady | Timmy Cleary |
| 1968 | Lancer | |
| 1968 | Pat Neal Is Back | Himself |
| 1967 | Incident ... und sie kannten kein Erbarmen | Artie Connors |
| 1967 | Der Chef | Johnny |
| 1967 | Mannix | |
| 1967 | Heiße Spuren | Fred Janney |
| 1967 | The Price of a Life | Edward Miles Layton |
| 1966 | Kobra übernehmen Sie | Lieutenant Albert Brocke |
| 1966 | Ten Blocks on the Camino Real | Kilroy |
| 1966 | Hawk | Peter Janus |
| 1965 | F.B.I. | Norman Gretzler |
| 1965 | F.B.I. | Perry Victor |
| 1965 | F.B.I. | Neil Harland |
| 1965 | F.B.I. | Steve Chandler |
| 1965 | For the People | Louis Cahane |
| 1964 | Flipper | Phil Adams |
| 1963 | The Outer Limits | Pvt. Arthur Dix |
| 1963 | Arrest and Trial | |
| 1962 | The Nurses | Saunders |
| 1962 | The Nurses | Carl |
| 1961 | Preston & Preston | Arnold McCabe |
| 1961 | Preston & Preston | Dino Locatelli |
| 1961 | Preston & Preston | Joey Americus |
| 1961 | Preston & Preston | Adam Novins |
| 1960 | Route 66 | |
| 1960 | Insight | Bobo |
| 1960 | Insight | Vincent |
| 1960 | Insight | God |
| 1960 | Insight | Jamie Conklin |
| 1960 | Insight | Akardin |
| 1960 | Police Surgeon | Ben Grover |
| 1958 | Gnadenlose Stadt | Phillip Kosnik |
| 1958 | Gnadenlose Stadt | Nick (uncredited) |
| 1958 | Gnadenlose Stadt | Counterman |
| 1956 | The Edge of Night | Roy Sanders |
| 1951 | Hallmark Hall of Fame | Taxi Driver |
