2021
Star Trek: Prodigy as Odo (voice)2020
First Cow as Man with Raven2019
Windows on the World as Maury2019
The Circuit as Not available2019
Raising Buchanan as President James Buchanan2016
Certain Women as Albert2016
Blood Stripe as Art2016
Way Out on a Limb as Self2015
This Is Happening as Cal Plotz2014
The Librarians as Mr. McGuire2014
Planes: Fire & Rescue as Concierge (voice)2013
Masters of Sex as Dr. George Papanikolaou2013
Wander Over Yonder as Maurice (voice)2013
The Captains Close Up as Self2013
The Sixth Gun as Von Allen / Montcrief2013
Evermore as Grandpa2012
Ben 10: Omniverse as Azmuth (voice)2012
1600 Penn as Winslow Hannum2012
Get a Life! as Himself2011
The Looney Tunes Show as Pepé Le Pew (voice)2011
The Captains as Self2010
Young Justice as Mark Desmond (voice)2010
Pound Puppies as McLeish (voice)2010
BlackBoxTV Presents as Rudy2009
The Good Wife as Coroner Claypool2009
Archer as Mannfred (voice)2009
Archer as Cardinal Giancarlo Morelli (voice)2009
Warehouse 13 as Hugo Miller2009
Le Door as Le Door2008
Random! Cartoons as Hornswiggle / Apeman #2 (voice)2008
Hornswiggle as Hornswiggle (voice)2008
Dispatches from Nicaragua as Not available2007
Saving Grace as Not available2007
Andrew Jackson: Good, Evil & The Presidency as James Parton (voice)2007
Scooby-Doo: Agence toutou risques, vol. 1 : Le voleur de vélo as (voice)2007
Chill Out, Scooby-Doo! as Alphonse LaFleur (voice)2005
Grey's Anatomy as Neil Sheridan2005
Criminal Minds as Colonel Ron Massey2005
It's Always Sunny in Philadelphia as Dr. Larry Meyers2005
Avatar: The Last Airbender as Mechanist (voice)2005
Avatar: The Last Airbender as Gan Jin Leader (voice)2005
Family Guy Presents: Stewie Griffin: The Untold Story as Odo (voice)2005
Geppetto's Secret as Mr. Sneap2004
Boston Legal as Paul Lewiston2004
Eulogy as Parson Banke2003
Duck Dodgers as McChirpy (voice)2003
Xiaolin Showdown as Master Fung (voice)2003
Trials and Tribble-ations: Uniting Two Legends as Himself2002
Joseph: King of Dreams as Butler (voice)2002
Tarzan & Jane as (voice)2002
Woodrow Wilson as voice2002
Witness to Hope: The Life of Karol Wojtyla, Pope John Paul II as Narrator (voice)2001
Star Trek: Enterprise as Ezral2001
The Legend of Tarzan as Renard Dumont (voice)2001
Disney's House of Mouse as Not available2001
The Princess Diaries as Philippe Renaldi (uncredited)2001
Justice League as Kanjar-Ro / Galius Zed / Guardian of Oa (voice)2001
Justice League as Desaad / General Steppenwolf / Minion (voice)2001
Justice League as Galius Zed / Kalanorian (voice)2001
Burning Down the House as Pierre2000
The Secret Adventures of Jules Verne as Not available2000
The Patriot as Reverend Oliver2000
Altman on His Own Terms as Self2000
Geppetto as Prof Buonragazzo2000
Sally Hemings: An American Scandal as James Callender2000
Enlisted: The Story of 'M*A*S*H' as Self2000
The Little Mermaid II: Return to the Sea as Chef Louis (voice)2000
Sally Hemings: An American Scandal as James Callender1999
Family Guy as Odo (voice)1999
Judging Amy as Judge Jackson Keeler1999
Inspector Gadget as Artemus Bradford1999
Xyber 9: New Dawn as Xyber 9 (voice)1999
We All Fall Down as Tim1998
The Wild Thornberrys as Merrick Dash (voice)1998
An American Tail: The Treasure of Manhattan Island as Dithering (voice)1997
Stargate SG-1 as Alar1997
The Practice as Judge F. Mantz1997
Extreme Ghostbusters as Not available1997
Snide and Prejudice as Dr. Sam Cohen1997
Los Locos as Presidente1997
Cats Don't Dance as Flanigan (voice)1996
Nash Bridges as Not available1996
Captain Simian & the Space Monkeys as Gardener / Alien Gladioluses (voice)1996
The Great War and the Shaping of the 20th Century as Jean Jaures / Mustafa Kemal Ataturk (voice)1996
Richie Rich as Richard Rich, Chef Pierre, Professor Keenbean1995
The Outer Limits as Dlavan1995
Batman Forever as Dr. Burton1995
The Savage Dragon as Horde (voice)1994
Chicago Hope as Not available1994
Aladdin as Nefir Hasenuf (voice)1993
Star Trek: Deep Space Nine as Odo1993
Frasier as William Tewksbury1993
Marsupilami as Chef Louie (voice)1993
Star Trek: Deep Space Nine - Behind the Scenes as Himself1993
The Ballad of Little Jo as Streight Hollander1993
Star Trek: Deep Space Nine - Emissary as Odo1992
Batman: The Animated Series as Dr. March (voice)1992
Raw Toonage as Chef Louie (voice)1992
Lucky Luke as Mr. Edgar Rockbottom / Mendez1992
The Player as René Auberjonois1992
The Sands of Time as Prime Minister1992
Ned Blessing: The True Story Of My Life as Marquis1992
The Lost Language of Cranes as Geoffrey Lane1992
Wild Card as Jake Spence1991
Eerie, Indiana as The Donald1991
Absolute Strangers as Quinn1990
Tom & Jerry Kids Show as Pierre (voice)1989
Doogie Howser, M.D. as Not available1989
The Little Mermaid as Louis (voice)1989
Little Nemo: Adventures in Slumberland as Professor Genius (voice)1989
The Feud as Reverton1989
A Connecticut Yankee in King Arthur's Court as Merlin1988
American Experience as Alexander Hamilton (voice)1988
American Experience as Woodrow Wilson (voice)1988
Longarm as Gov. Lew Wallace1988
Police Academy 5: Assignment Miami Beach as Tony1987
DuckTales as Dr. Nogood (voice)1987
Walker as Maj. Siegfried Hennington1987
My Best Friend Is a Vampire as Modoc1986
L.A. Law as Kevin Richardson1986
Matlock as Not available1986
Wildfire as Not available1986
Blacke's Magic as Not available1986
A Smoky Mountain Christmas as Ned1986
The Christmas Star as Sumner1986
3:15 the Moment of Truth as Horner1985
The Super Powers Team: Galactic Guardians as Desaad (voice)1984
Murder, She Wrote as Prof. Harry Papasian1984
Murder, She Wrote as Homicide Captain Walker Thorn1984
Snorks as Dr. Strangesnork1984
Challenge of the GoBots as Not available1983
Sleeping Beauty as King Boris1982
Faerie Tale Theatre as King Boris1982
Faerie Tale Theatre as King Ulrich1982
The Last Unicorn as The Skull (voice)1982
The Tale of the Frog Prince as King Ulrich1982
The Kid From Nowhere as Howard1982
The Smurfs Christmas Special as Stranger (voice)1980
Where the Buffalo Roam as Harris1980
Beyond Westworld as Power1980
Tenspeed and Brown Shoe as Not available1980
More Wild Wild West as Capt. Sir David Edney1979
Hart to Hart as Donald Springfield1979
Benson as Clayton Endicott III1979
Mrs. Columbo as Not available1979
Stockard Channing: In Just Friends as Not available1979
The Wild Wild West Revisited as Capt. Sir David Edney1979
Once Upon a Midnight Scary as Ichabod Crane1978
Eyes of Laura Mars as Donald Phelps1978
The Dark Secret of Harvest Home as Jack Stump1977
Man from Atlantis as Havergal1977
The Rhinemann Exchange as Dr. Eugene Lyons1976
Charlie's Angels as Terrence1976
Charlie's Angels as Freddie Fortune1976
The Bionic Woman as Not available1976
Baa Baa Black Sheep as Matthew Hooper1976
The Big Bus as Father Kudos1976
King Kong as Roy Bagley1976
Panache as Panache1975
The Jeffersons as Not available1975
Starsky & Hutch as Not available1975
Wonder Woman as Kimball1975
Ellery Queen as Not available1975
The Hindenburg as Major Napier1975
Upcoming Season as Roberts1974
The Rockford Files as Masters1974
Rhoda as Not available1974
Harry O as Not available1974
King Lear as Edgar1974
The Lives of Benjamin Franklin as Not available1973
Super Friends as Desaad (voice)1973
Shirts/Skins as Sidney Krebs1973
Incident at Vichy as Monceau, An Actor1973
The Birdmen as Halden Brevik / Olav Volda1972
The Rookies as Not available1972
Images as Hugh1972
Pete 'n' Tillie as Jimmy Twitchell1971
Great Performances as Edgar1971
McCabe & Mrs. Miller as Sheehan1971
Once Upon a Dead Man as Andre Stryker1971
Teenage Tease as Not available1970
Night Gallery as Not available1970
M*A*S*H as Father John Mulcahy1970
Brewster McCloud as The Lecturer1968
The Mod Squad as Not available1968
Petulia as Fred Six (uncredited)1964
Lilith as Howie (uncredited)1962
The Jetsons as (voice)1956
Tony Awards as Self - NomineeNaN
Cortex as Parks2010
Young Justice In Memory Of1993
Star Trek: Deep Space Nine Director1987
Marblehead Manor Director