| Movie | 2006 | The Detonator | Flint | |
| Movie | 2004 | Hawking | Arno Penzias | |
| Movie | 2009 | Thomas & Friends: Hero of the Rails - The Movie | Narrator (US) (voice) | |
| Movie | 1978 | FM | Jeff Dugan | |
| Movie | 1980 | A Change of Seasons | Pete Lachapelle | |
| Movie | 2009 | Thomas & Friends: Railway Friends | Narrator (voice) | |
| Movie | N/A | Thomas & Friends: Thomas' Sodor Celebration! | Narrator | |
| Movie | 1997 | The Disappearance of Kevin Johnson | Jeff Littman | |
| Movie | 2011 | Thomas & Friends: Day of the Diesels - The Movie | Narrator / Diesel (voice) | |
| Movie | 1979 | A Vacation in Hell | Alan | |
| Movie | 2005 | Thomas & Friends: Calling All Engines! | Narrator (voice) | |
| Movie | 1985 | Deadly Messages | Michael Krasnick | |
| Movie | 1993 | Not in My Family | Ted Ricci | |
| Movie | 2009 | HIT Favorites: Frosty Friends | | |
| Movie | 2007 | HIT Favorites: Winter Wonderland | | |
| Movie | 2002 | Dinotopia 3: The Election | Frank Scott | |
| Movie | 2002 | Dinotopia 2: The Temptation | Frank Scott | |
| Movie | 2003 | Dinotopia 4: New Horizons | Frank Scott | |
| Movie | 2003 | Dinotopia 5: The Virus | Frank Scott | |
| Movie | 2003 | Dinotopia 6: The Exit | Frank Scott | |
| Movie | 1977 | Red Alert | Carl Wyche | |
| Movie | 1979 | Promises in the Dark | Dr. Jim Sandman | |
| Movie | 1977 | Lindsay Wagner: Another Side of Me | | |
| Movie | 1973 | The Third Girl from the Left | David | |
| Movie | 1985 | Dempsey and Makepeace The Movie | Dempsey | |
| Movie | 2022 | Renegades | Palmer | |
| Movie | 1990 | Believed Violent | Tom Lepski | |
| Movie | 1975 | Queen of the Stardust Ballroom | David | |
| Movie | 2011 | Thomas & Friends: Wobbly Wheels & Whistles | Narator (voice) | |
| Movie | 2011 | Thomas & Friends: Rescue on the Rails | Narrator / Diesel (US Version) (voice) | |
| Movie | 1990 | The Care of Time | Robert Halliday | |
| Movie | 2010 | Thomas & Friends: The Lion of Sodor | Narrator | |
| Movie | 2012 | Thomas & Friends: Schoolhouse Delivery | Narrator / Diesel (voice) | |
| Movie | 1971 | Jennifer on My Mind | Marcus Rottner | |
| Movie | 1976 | Scott Free | Tony Scott | |
| Movie | 1978 | The Comedy Company | Paul Lester | |
| Movie | 2006 | Are You Ready for Love? | Randy | |
| Movie | 1971 | The Impatient Heart | Frank Pescadero | |
| Movie | 2011 | Captain America: The First Avenger | Senator Brandt | |
| Movie | 2008 | Thomas & Friends: Thomas and the Treasure | Narrator | |
| Movie | 2013 | Born Of War | Harm Helder | |
| Movie | 2004 | Thomas & Friends: Steamies vs. Diesels | Narrator | |
| Movie | 2001 | Dario Argento: An Eye for Horror | Self | |
| Movie | 1975 | Cage Without a Key | Ben Holian | |
| Movie | 1982 | Between Two Brothers | Bob Frazer | |
| Movie | 1976 | James Dean | William Bast | |
| Movie | 1973 | Heavy Traffic | (voice) | |
| Movie | 2015 | The American Invasion | Self - Presenter | |
| Movie | 1974 | The Red Badge of Courage | Pvt. Jim Conklin | |
| Movie | 1990 | Have a Nice Night | Tom Lepski | |
| Movie | 1987 | Visitors | Eddie | |
| Movie | 2001 | The Lost Battalion | Maj. Gen. Robert Alexander | |
| Movie | 1994 | Murder or Memory: A Moment of Truth Movie | Arnie Hansen | |
| Movie | 1970 | Lovers and Other Strangers | Mike Vecchio | |
| Movie | 1987 | The Grand Knockout Tournament | Self | |
| Movie | 1989 | Try This One for Size | Tom Lepski | |
| Movie | 1972 | The Strangers in 7A | Billy | |
| Movie | 2009 | The Last Days of Lehman Brothers | Jamie Dimon | |
| Movie | 1990 | Want to Stay Alive | Tom Lepski | |
| Movie | 2005 | Thomas & Friends: Hooray for Thomas | Narrator | |
| Movie | 1988 | Rock 'N Roll Mom | Jeff Robins | |
| Movie | 2009 | Thomas & Friends: Team Up with Thomas | Narrator (voice) | |
| Movie | 2010 | Rosamunde Pilcher: Shades of Love-Family Secret | | |
| Movie | 2008 | Thomas & Friends: Mud Glorious Mud | Narrator | |
| Movie | 2016 | FantastiCozzi | (archive footage) | |
| Movie | 1984 | The Seduction of Gina | Keith Sindell | |
| Movie | 2005 | Roman Vice | Narrátor | |
| Movie | 2006 | Thomas & Friends: On Site with Thomas | Narrator | |
| Movie | 1980 | A Perfect Match | Steve Triandos | |
| Movie | 1974 | Hitchhike! | Keith Miles | |
| Movie | 2006 | Thomas & Friends: Come Ride the Rails | | |
| Movie | 1998 | Déjà Vu | Alex | |
| Movie | 2011 | Thomas & Friends: Pop Goes Thomas | Narrator (voice) / Mr Bubbles (voice) | |
| Movie | 2012 | Thomas and Friends: Up Up & Away! | Narrator / Mr. Bubbles / The Maithwaite Stationmaster (voice) | |
| Movie | 1971 | Four Flies on Grey Velvet | Roberto Tobias | |
| Movie | 2010 | Thomas & Friends: Splish, Splash, Splosh! | Narrator / Mr. Bubbles (voice) | |
| Movie | 2012 | Thomas & Friends: Sticky Situations | Narrator (voice) | |
| Movie | 2013 | Thomas & Friends: Muddy Matters | Narrator (voice) | |
| Movie | 2010 | Thomas & Friends: Creaky Cranky | Narrator (voice) | |
| Movie | 2008 | Me and Orson Welles | Les Tremayne | |
| Movie | 2007 | Doris Day: Virgin Territory | Self | |
| Movie | 1983 | Venice Medical | Dr. Pete Marcus | |
| Movie | 2017 | The Time of Their Lives | Harry Scheider | |
| Movie | 1981 | Rich and Famous | Max (uncredited) | |
| Movie | 2006 | Thomas & Friends: Thomas & the Really Brave Engines | Narrator (voice) | |
| Movie | 2010 | Thomas & Friends: The Greatest Stories | Narrator | |
| Movie | 2006 | Thomas & Friends: Tales from the Tracks | Narrator (voice) | |
| Movie | 2004 | Thomas & Friends: Thomas and the Jet Engine | Narrator | |
| Movie | 2005 | Thomas & Friends: Percy Saves the Day | Narrator | |
| Movie | 2005 | Thomas & Friends: Thomas' Sodor Celebration! | Narrator | |
| Movie | 2007 | Thomas & Friends: Thomas' Trusty Friends | Narrator | |
| Movie | 2008 | Thomas & Friends: Engines and Escapades | Narrator | |
| Movie | 2006 | Thomas & Friends: Thomas' Halloween Adventures | Narrator | |
| Movie | 2004 | Thomas & Friends: It's Great to Be an Engine! | Narrator | |
| Movie | 2005 | Thomas & Friends: Songs from the Station | Narrator | |
| Movie | 2006 | Thomas & Friends: Track Stars | Narrator | |
| Movie | 2007 | Thomas & Friends: Milkshake Muddle | Narrator | |
| Movie | 2007 | Thomas & Friends: Carnival Capers | Narrator | |
| Movie | 2007 | Thomas & Friends: Thomas and the Toy Workshop | Narrator | |
| Movie | 2009 | Thomas & Friends: Holiday Express | Narrator | |
| Movie | 2009 | Thomas & Friends: High Speed Adventures | Narrator | |
| Movie | 2010 | Thomas & Friends: Thomas & The Runaway Kite | Narrator | |
| Movie | 2009 | Thomas & Friends: High Speed Adventures | Narrator | |
| Movie | 2010 | Thomas & Friends: Thomas and the Runaway Kite | Narrator | |
| Movie | 2011 | Thomas & Friends: The Birthday Express | Narrator | |
| Movie | 2024 | Canary Black | US President | |
| Movie | 2010 | Thomas & Friends: Misty Island Rescue | Narrator / Diesel (voice) | |
| Movie | 2012 | Thomas & Friends: Blue Mountain Mystery - The Movie | Narrator / Diesel (voice) | |
| Movie | 2013 | Thomas & Friends: Muddy Matters | Narrator | |
| Movie | 2012 | Thomas & Friends: A Very Thomas Christmas | Narrator | |
| Movie | 2013 | Thomas & Friends: Go Go Thomas! | Narrator | |
| TV Show | 1982 | St. Elsewhere | | 1 |
| TV Show | 1997 | Ally McBeal | D. A. Adam Dawson | 1 |
| TV Show | 2001 | The Division | Judge Stone | 1 |
| TV Show | 1997 | Jonathan Creek | Captain Frank Candy | 1 |
| TV Show | 1984 | The Bill | | 1 |
| TV Show | 1979 | Tales of the Unexpected | Stephen Baker | 1 |
| TV Show | 1985 | Dempsey and Makepeace | James Dempsey | 30 |
| TV Show | 2003 | The Terry and Gaby Show | | 1 |
| TV Show | 2004 | The Catherine Tate Show | | 1 |
| TV Show | 2001 | Richard & Judy | Self | 1 |
| TV Show | 1997 | The Practice | A.D.A. Adam Dawson | 2 |
| TV Show | 1969 | Medical Center | Dr. Lensko | 1 |
| TV Show | 1995 | JAG | Col. Hegstetter | 1 |
| TV Show | 1995 | JAG | Nardoni | 1 |
| TV Show | 1973 | Police Story | | 1 |
| TV Show | 1983 | Emerald Point N.A.S. | David Marquette | 22 |
| TV Show | 1997 | Trial & Retribution | | 2 |
| TV Show | 2005 | Dead Man Weds | Chuck Newman | 6 |
| TV Show | 1999 | CI5: The New Professionals | | 1 |
| TV Show | 2002 | Dinotopia | | 0 |
| TV Show | 1969 | Mr. Deeds Goes to Town | | 1 |
| TV Show | 1992 | Home Fires | Teddy Kramer | 6 |
| TV Show | 2005 | Doctor Who | General Sanchez | 1 |
| TV Show | 2004 | New Tricks | Col. Charles Norton | 1 |
| TV Show | 2004 | Hustle | Marcus Wendell | 1 |
| TV Show | 2015 | Galavant | Sid's Dad | 1 |
| TV Show | 1978 | An Audience with... | Self | 1 |
| TV Show | 1984 | Thomas & Friends | Narrator (voice) | 232 |
| TV Show | 2011 | Episodes | Elliot Salad | 5 |
| TV Show | 1986 | Casualty | Mike Barnicott | 1 |
| TV Show | 2004 | Agatha Christie's Marple | Martin Zimmerman | 1 |
| TV Show | 2011 | Death in Paradise | Joel Maurice | 1 |
| TV Show | 2018 | Trust | Walter Annenberg | 1 |
| TV Show | 2013 | Blandings | Grumman | 1 |
| TV Show | 2006 | Legends | Self - Narrator (voice) | 1 |
| TV Show | 2005 | Bones | Roger Frampton | 2 |
| TV Show | 1991 | Dynasty: The Reunion | Arlen Marshall | 2 |
| TV Show | 2002 | Dinotopia | Frank Scott | 13 |
| TV Show | 1984 | Murder, She Wrote | Alex Weaver | 1 |
| TV Show | 2011 | Celebrity Antiques Road Trip | Self - Participant | 1 |
