Filmography130 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2026 | Not Suitable for WorkSeries | Wes Dryden | 77 |
| 2025 | RelayMovie | McVie | 76 |
| 2025 | John Candy: I Like MeMovie | Self - Actor (archive footage) | 76 |
| 2025 | The Gettysburg AddressMovie | William Saunders (voice) | 76 |
| 2024 | Fly Me to the MoonMovie | Senator Hedges (uncredited) | 75 |
| 2024 | Broadway's Leading Men: A Musical CelebrationMovie | Self | 75 |
| 2023 | Titanic: Stories from the HeartMovie | Self (archive footage) | 74 |
| 2023 | WishMovie | Sabino (voice) | 74 |
| 2023 | The Last Thing He Told MeSeries | Professor Tobias Cookman | 74 |
| 2021 | And Just Like That…Series | Mark Kasabian | 72 |
| 2021 | American Horror StoriesSeries | David Woodrow Randolph | 72 |
| 2021 | Beebo Saves ChristmasMovie | Narrator | 72 |
| 2021 | Heritage Minutes: The Discovery of InsulinMovie | Narrator (voice) | 72 |
| 2020 | Stars in the HouseSeries | Self | 71 |
| 2020 | Power Book II: GhostSeries | Simon Stern | 71 |
| 2020 | Happiest SeasonMovie | Ted | 71 |
| 2020 | Laura Ingalls Wilder: Prairie to PageMovie | Narrator | 71 |
| 2019 | Tales of the CitySeries | Samuel Garland | 70 |
| 2019 | Dark WatersMovie | Phil Donnelly | 70 |
| 2017 | The OrvilleSeries | Admiral Halsey | 68 |
| 2017 | Vixen: The MovieMovie | Dr. Martin Stein / Firestorm (voice) | 68 |
| 2017 | Rebel in the RyeMovie | Sol Salinger | 68 |
| 2016 | DC's Legends of TomorrowSeries | Dr. Martin Stein / Firestorm | 67 |
| 2016 | Tom Hanks: A League of His OwnMovie | Self | 67 |
| 2015 | SicarioMovie | Dave Jennings | 66 |
| 2015 | SupergirlSeries | Dr. Martin Stein | 66 |
| 2015 | Difficult PeopleSeries | John Passias | 66 |
| 2015 | Self/lessMovie | Martin | 66 |
| 2015 | Schitt's CreekSeries | Clifton Sparks | 66 |
| 2015 | The SlapSeries | Narrator (voice) | 66 |
| 2015 | ConsumedMovie | Dan Conway | 66 |
| 2014 | The FlashSeries | Dr. Martin Stein | 65 |
| 2014 | Big GameMovie | Vice President | 65 |
| 2014 | PowerSeries | Simon Stern | 65 |
| 2013 | Sleepy HollowSeries | Mr. Crane | 64 |
| 2013 | MotiveSeries | Neville Montgomery | 64 |
| 2013 | I'll Follow You DownMovie | Sal | 64 |
| 2012 | ArgoMovie | Ken Taylor | 63 |
| 2012 | ArrowSeries | Martin Stein | 63 |
| 2012 | Reflections on TitanicMovie | Self | 63 |
| 2012 | The FirmSeries | Judge Dominic | 63 |
| 2012 | Moving DayMovie | Wilf | 63 |
| 2011 | Kung Fu Panda 2Movie | Master Thundering Rhino (voice) | 62 |
| 2011 | SuitsSeries | Philip | 62 |
| 2011 | Web TherapySeries | Kip Wallice | 62 |
| 2011 | Take Me HomeMovie | Arnold Colvin | 62 |
| 2011 | Charlie's AngelsSeries | Charles Townsend (voice) | 62 |
| 2011 | The EntitledMovie | Bob Vincent | 62 |
| 2010 | The TownMovie | Assistant Bank Manager (uncredited) | 61 |
| 2010 | Republic of DoyleSeries | Garrison Steele | 61 |
| 2010 | You AgainMovie | Mark | 61 |
| 2010 | Law & Order: LASeries | Walter Calvin | 61 |
| 2009 | GleeSeries | Mr. Schuester | 60 |
| 2009 | Modern FamilySeries | Chef Dumont | 60 |
| 2009 | The Good WifeSeries | Judge Loudon Spencer | 60 |
| 2009 | Nurse JackieSeries | Neil Nutterman | 60 |
| 2009 | Watch What Happens Live with Andy CohenSeries | Self - Guest | 60 |
| 2009 | Stargate UniverseSeries | Ambassador Ovirda | 60 |
| 2009 | The Last TemplarSeries | Monsignor De Angelis | 60 |
| 2009 | Green Lantern: First FlightMovie | Sinestro (voice) | 60 |
| 2008 | Eli StoneSeries | Jordan Wethersby | 59 |
| 2008 | MilkMovie | Mayor Moscone | 59 |
| 2008 | Web TherapySeries | Kip Wallice | 59 |
| 2007 | DamagesSeries | Bennett Herreshoff | 58 |
| 2006 | 30 RockSeries | Eugene Gremby | 57 |
| 2006 | Ugly BettySeries | Professor Barrett | 57 |
| 2006 | JusticeSeries | Ron Trott | 57 |
| 2006 | The Best of The Tony Awards: The PlaysMovie | Max (segment "Lend Me a Tenor") | 57 |
| 2005 | The Reichen ShowSeries | Self | 56 |
| 2004 | ReGenesisSeries | Olivier Roth | 55 |
| 2003 | ABC's 50th Anniversary CelebrationMovie | Self - Jack Bristow | 54 |
| 2003 | The Music ManMovie | Mayor Shinn | 54 |
| 2002 | Torso: The Evelyn Dick StoryMovie | J.J. Robinette | 53 |
| 2002 | Home RoomMovie | Det. martin Van Zandt | 53 |
| 2001 | Legally BlondeMovie | Professor Callahan | 52 |
| 2001 | AliasSeries | Jack Bristow | 52 |
| 2001 | The Wandering Soul MurdersMovie | Insp. Philip Millard | 52 |
| 2001 | A Colder Kind of DeathMovie | Insp. Philip Millard | 52 |
| 2001 | Life with Judy Garland: Me and My ShadowsSeries | Sid Luft | 52 |
| 2001 | Laughter on the 23rd FloorMovie | Kenny | 52 |
| 2001 | Call Me ClausMovie | Taylor | 52 |
| 2000 | Love and MurderMovie | Inspector Philip Millard | 51 |
| 1999 | Summer's EndMovie | Narrator (voice) | 50 |
| 1999 | AnnieMovie | Oliver Warbucks | 50 |
| 1999 | Invisible ChildMovie | Tim Beeman | 50 |
| 1998 | Will & GraceSeries | Peter Bovington | 49 |
| 1997 | TitanicMovie | Thomas Andrews | 48 |
| 1997 | The Wonderful World of DisneySeries | — | 48 |
| 1997 | The ViewSeries | Self | 48 |
| 1997 | Liberty!Series | John Dickinson | 48 |
| 1997 | CinderellaMovie | King Maximillian | 48 |
| 1997 | Let Me Call You SweetheartMovie | Geoff Dorso | 48 |
| 1996 | The First Wives ClubMovie | Bill Atchison | 47 |
| 1996 | FX: The SeriesSeries | Andrew Price | 47 |
| 1996 | Hostile Advances: The Kerry Ellison StoryMovie | Jack Gilcrest | 47 |
| 1995 | The Outer LimitsSeries | Dr. Ben McCormick | 46 |
| 1995 | JeffreyMovie | Tim | 46 |
| 1995 | KleptomaniaMovie | Morgan Allen | 46 |
| 1994 | Mixed NutsMovie | Irate Neighbor (voice) | 45 |
| 1994 | ExoticaMovie | Harold | 45 |
| 1993 | FrasierSeries | Ferguson | 44 |
| 1993 | Kung Fu: The Legend ContinuesSeries | Blackwell | 44 |
| 1993 | Sleepless in SeattleMovie | Greg | 44 |
| 1993 | I'll Never Get to HeavenMovie | Eric Hoskins | 44 |
| 1992 | Light SleeperMovie | Tis Brooke | 43 |
| 1992 | Walking the DogMovie | — | 43 |
| 1992 | Sondheim: A Celebration at Carnegie HallMovie | Self | 43 |
| 1992 | SinglesMovie | Kid's Dad | 43 |
| 1991 | Heritage MinutesSeries | Bora Laskin | 42 |
| 1990 | Law & OrderSeries | Paul Sandig | 41 |
| 1990 | AssassinsMovie | John Wilkes Booth | 41 |
| 1989 | The SimpsonsSeries | Michael de Graaf (voice) | 40 |
| 1988 | Liberace: Behind the MusicMovie | Liberace | 39 |
| 1988 | The Legendary Life of Ernest HemingwayMovie | Ernest Hemingway | 39 |
| 1987 | The Days and Nights of Molly DoddSeries | Dennis Widmer | 38 |
| 1986 | RoanoakMovie | John White | 37 |
| 1986 | RoanoakSeries | John White | 37 |
| 1985 | The Twilight ZoneSeries | Dr. Kevin Carlson (segment "A Day in Beaumont") | 36 |
| 1985 | I Had Three WivesSeries | Jackson Beaudine | 36 |
| 1984 | Tales from the DarksideSeries | Ambrose Cavender | 35 |
| 1983 | Charley's AuntMovie | Jack Chesney | 34 |
| 1981 | Entertainment TonightSeries | Self | 32 |
| 1978 | TartuffeMovie | Valere | 29 |
| 1976 | Ah, Wilderness!Movie | Arthur | 27 |
| 1974 | Monkeys in the AtticMovie | Eric | 25 |
| 1974 | CyranoMovie | Christian de Neuvillette (voice) | 25 |
| 1971 | Great PerformancesSeries | Arthur | 22 |
| 1961 | The Mike Douglas ShowSeries | Self | 12 |
| 1951 | Hallmark Hall of FameSeries | General Lafayette | 2 |
| 0 | EloiseMovie | — | — |