Film & TV List | Role | Media |
 |
| The Big C (2012) | Willy | TV Show |
|
| The Firm (2012) | Judge Dominic | TV Show |
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| Republic of Doyle (2010–2012) | Garrison Steele | TV Show |
|
| Flashpoint (2011) | Dr. Larry Toth | TV Show |
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| The Entitled (2011) | Bob Vincent | Movie |
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| Web Therapy (2011) | Kip Wallice | TV Show |
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| William & Catherine: A Royal Romance (2011) | HRH Prince Charles | TV Movie |
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| Law & Order: LA (2011) | Walter Calvin | TV Show |
|
| Kung Fu Panda 2 (2011) | Master Thundering Rhino (voice) | Movie |
|
| 30 Rock (2011) | Eugene Gremby | TV Show |
|
| Take Me Home (2011) | Arnold | Movie |
|
| SGU Stargate Universe (2011) | Ambassador Ovirda | TV Show |
|
| Murdoch Mysteries (2011) | n/a (retired) (retired) | TV Show |
|
| Ice Quake (2010) | Colonel Bill Hughes | TV Movie |
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| You Again (2010) | Mark Olsen | Movie |
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| Everything She Ever Wanted (2009) | Walter Allanson | TV Movie |
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| Glee (2009) | Will's Father | TV Show |
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| Nurse Jackie (2009) | Neil Nutterman | TV Show |
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| Green Lantern: First Flight (2009) | Sinestro (voice) | Direct to Video |
|
| Rex (2009) | Paul | TV Movie |
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| Web Therapy (2009) | Kip Wallice | TV Show |
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| Eli Stone (2008–2009) | Jordan Wethersby | TV Show |
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| The Last Templar (2009) | Monsignor De Angelis | TV Movie |
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| Milk (2008) | Mayor Moscone | Movie |
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| ReGenesis (2007–2008) | Olivier Roth | TV Show |
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| Ugly Betty (2007) | Professor Barrett | TV Show |
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| American Masters (2007) | Narrator | TV Show |
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| Justice (2006–2007) | Ron Trott | TV Show |
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| Alias (2001–2006) | Jack Bristow | TV Show |
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| Will & Grace (2004) | Peter Bovington | TV Show |
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| It's All Relative (2003) | Jerry
/
Joffrey | TV Show |
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| The Music Man (2003) | Mayor Shinn | TV Movie |
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| Tuck Everlasting (2002) | Robert Foster | Movie |
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| Home Room (2002) | Det. Martin Van Zandt | Movie |
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| Torso: The Evelyn Dick Story (2002) | J.J. Robinette | TV Movie |
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| Call Me Claus (2001) | Taylor | TV Movie |
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| Legally Blonde (2001) | Professor Callahan | Movie |
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| Life with Judy Garland: Me and My Shadows (2001) | Sid Luft | TV Movie |
|
| Laughter on the 23rd Floor (2001) | Kenny Franks | TV Movie |
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| A Colder Kind of Death (2001) | Insp. Philip Millard | TV Movie |
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| The Wandering Soul Murders (2001) | Inspector Philip Millard | TV Movie |
|
| Frasier (2000) | Ferguson | TV Show |
|
| The Outer Limits (1996–2000) | Dr. Ben McCormick
/
Dr. Edward Normandy | TV Show |
|
| Deadly Appearances (2000) | Inspector Philip Millard | TV Movie |
|
| Love and Murder (2000) | Inspector Philip Millard | TV Movie |
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| Annie (1999) | Oliver Warbucks | TV Movie |
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| Invisible Child (1999) | Tim Beeman | TV Movie |
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| Summer's End (1999) | Narrator (voice) | TV Movie |
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| Boys Briefs (1999) | Father Carson (segment The Absolution of Anthony) | Movie |
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| External Affairs (1999) | Harry Raymond | Movie |
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| Liberty! The American Revolution (1997) | John Dickinson | TV Movie |
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| Cinderella (1997) | King Maximillian | TV Movie |
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| Titanic (1997) | Thomas Andrews | Movie |
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| Let Me Call You Sweetheart (1997) | Geoff Dorso | TV Movie |
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| F/X: The Series (1996) | Andrew Price | TV Show |
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| The First Wives Club (1996) | Bill Atchison | Movie |
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| Hostile Advances: The Kerry Ellison Story (1996) | Jack Gilcrest | TV Movie |
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| Almost Perfect (1995) | Howard Guthrie | TV Show |
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| Law & Order (1995) | Paul Sandig | TV Show |
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| Jeffrey (1995) | Tim | Movie |
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| Kleptomania (1995) | Morgan Allen | Movie |
|
| Mixed Nuts (1994) | Irate Neighbor (voice) | Movie |
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| Exotica (1994) | Harold Brown | Movie |
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| Kung Fu: The Legend Continues (1994) | Blackwell | TV Show |
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| E.N.G. (1991–1993) | Adam Hirsch | TV Show |
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| Sleepless in Seattle (1993) | Greg | Movie |
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| Life with Mikey (1993) | Brian Spiro | Movie |
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| Woman on Trial: The Lawrencia Bembenek Story (1993) | Frank Marrocco | TV Movie |
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| Queen (1993) | Digby | TV Movie |
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| Dieppe (1993) | Lord Louis Mountbatten | TV Movie |
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| The Powers That Be (1992) | Mack Novitz | TV Show |
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| I'll Fly Away (1992) | Warren | TV Show |
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| Light Sleeper (1992) | Tis Brooke | Movie |
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| The First Circle (1992) | Lew Rubin | TV Movie |
|
| I'll Never Get to Heaven (1992) | Eric Hoskins | Movie |
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| The Days and Nights of Molly Dodd (1987–1991) | Dennis Widmer | TV Show |
|
| Grand Larceny (1991) | Judge Keeler | TV Movie |
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| Liberace: Behind the Music (1988) | Liberace | TV Movie |
|
| The Legendary Life of Ernest Hemingway (1988) | Ernest Hemingway | Movie |
|
| American Playhouse (1986–1987) | Jack Chesney | TV Show |
|
| Guiding Light (1986) | Det. Frank Minnelli | TV Show |
|
| The Twilight Zone (1986) | Dr. Kevin Carlson (segment A Day in Beaumont) (segment A Day in Beaumont) | TV Show |
|
| I Had Three Wives (1985) | Jackson Beaudine | TV Show |
|
| Private Sessions (1985) | Jerry Sharma | TV Movie |
|
| Tales from the Darkside (1985) | Ambrose Cavender | TV Show |
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| Tartuffe (1978) | Valere | TV Movie |
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| The Best of Families (1977) | Teddy Wheeler | TV Movie |
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| Great Performances (1976) | Arthur | TV Show |
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| Valley Forge (1975) | Marquis de Lafayette | TV Movie |
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| Monkeys in the Attic (1974) | Eric | Movie |
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| ABC Afterschool Specials (1974) | Christian de Neuvillette | TV Show |
|
| Jack: A Flash Fantasy (1974) | Jack of Hearts | TV Movie |
|
| Godspell: A Musical Based on the Gospel According to St. Matthew (1973) | Jesus | Movie |
|
Film & TV List | Role | Media |
|
| The Late Late Show with Craig Ferguson (2010) | Himself - At 'You Again' Premiere | TV Show |
|
| The View (2006) | Himself | TV Show |
|