Divorce, Le (2003) .... Father

Commission, The (2002)

Matthew Shepard Story, The (2002) (TV) .... Dennis Shepard

In Bad Taste (2000) .... Himself

House Divided, A (2000) (TV) .... David Dickson

Unfinished Journey, The (1999) (voice) .... Narration

Exiled (1998) (TV) .... Executive ADA Jack McCoy

... aka Exiled: A Law & Order Movie (1998) (TV) (USA: promotional title)

Miracle at Midnight (1998) (TV) .... Dr. Karl Koster

"Thomas Jefferson" (1997) (mini) (voice) .... Thomas Jefferson

Lewis & Clark: The Journey of the Corps of Discovery (1997) (TV) (voice) .... Thomas Jefferson

Liv Ullmann scener fra et liv (1997)

Shadow Conspiracy (1997) .... President

Proprietor, The (1996) .... Harry Bancroft

... aka Propriétaire, La (1996) (France)

"Visionaries, The" (1995) .... Host/narrator

Nixon (1995) (scenes deleted) .... Richard Helms, CIA Director

Journey of August King, The (1995) .... Mooney Wright

"Lost Civilizations" (1995) .... Host/Narrator

"Law & Order" (1990) .... Executive ADA Jack McCoy (1994-)

Gala for the President at Ford's Theatre, A (1994) (TV) .... Himself

Serial Mom (1994) .... Eugene Sutphin, D.D.S.

David's Mother (1994) (TV) .... John Nils

Assault at West Point: The Court-Martial of Johnson Whittaker (1994) (TV) .... Daniel Chamberlain ... aka Assault at Westpoint (1994) (TV) (USA: short title)

Enemy Within, The (1994) (TV) .... President William Foster

Dog Race in Alaska, A (1993)

I'll Fly Away: Then and Now (1993) (TV) .... Forrest Bedford

"Warburg: A Man of Influence" (1991) (mini)

Man in the Moon, The (1991) .... Matthew Trant

"I'll Fly Away" (1991) .... D.A. Forrest Bedford

Captive in the Land, A (1990) .... Royce

Lantern Hill (1990) (TV) .... Andrew Stuart ... aka Jane of Lantern Hill (1990) (TV)

"Civil War, The" (1990) (mini) (voice) .... President Abraham Lincoln ... aka "American Civil War, The" (1990) (mini) (UK)

Mindwalk (1990) .... Jack Edwards

"Nightmare Years, The" (1989) (mini) .... Bill Shirer

Crimes and Misdemeanors (1989) .... Ben

Welcome Home (1989) .... Woody

Hostile Witness (1988) .... Jim Delmore

Lincoln (1988) (TV) .... Abraham Lincoln ... aka Gore Vidal's Lincoln (1988) (TV)

Terrorist on Trial: The United States vs. Salim Ajami (1988) (TV) .... James Delmore

Teufels Paradies, Des (1987) .... Mr. Jones ... aka Devil's Paradise (1987) (USA)

September (1987) .... Peter

Swimming to Cambodia (1987) (archive footage) .... Additional cast from 'The Killing Fields' ... aka Spalding Gray's Swimming to Cambodia (1987) (USA: complete title)

Room Upstairs, The (1987) (TV) .... Travis Coles

Just Between Friends (1986) .... Harry Crandall

Fifth Missile, The (1986) (TV) .... Allard Renslow ... aka Operation Fire (1986) (TV) (Europe: video box title English title)

Hannah and Her Sisters (1986) (uncredited) .... David Tolchin

Flagrant désir (1985) .... Gerry Morrison ... aka Certain Desire, A (1985) ... aka Flagrant Desire (1985) ... aka Trade Secrets (1985) (USA: TV title)

Warning Sign (1985) .... Cal Morse

Love Lives On (1985) (TV) .... Bernie

Finnegan Begin Again (1985) (TV) .... Paul Broadbent

Killing Fields, The (1984) .... Sydney Schanberg

Boy Who Loved Trolls, The (1984) (TV) .... Ofoeti

Dempsey (1983) (TV) .... Doc Kearns

In Defense of Kids (1983) (TV) .... Paul

"Freedom to Speak" (1982) (mini) .... Theodore Roosevelt

Games Mother Never Taught You (1982) (TV) .... David Bentells

"Q.E.D." (1982) .... Quentin E. Deverill ... aka "Mastermind" (1982)

Heaven's Gate (1980) .... Frank Canton ... aka Johnson County Wars (1980)

"Oppenheimer" (1980) (mini) .... J. Robert Oppenheimer

Hopscotch (1980) .... Cutter

Sweet William (1980) .... William

Eagle's Wing (1979) .... White Bull

Friendly Fire (1979) (TV) .... C.D.B. Bryan

Capricorn One (1978) .... Lieutenant Colonel Peter Willis

Interiors (1978) .... Mike

Sweet Revenge (1977/I) .... Le Clerq

Journey Into Fear (1975) .... Mr. Graham

... aka Burn Out (1975)

Rancho Deluxe (1975) .... Cecil Colson

Reflections of Murder (1974) (TV) .... Michael Elliott

Great Gatsby, The (1974) .... Nick Carraway, Wall St. Bond Salesman/Narrator

Glass Menagerie, The (1973) (TV) .... Tom Wingfield

Much Ado About Nothing (1973/I) (TV) .... Benedick

Mahoney's Estate (1972) .... Felix ... aka Mahoney's Last Stand (1972) (Canada: English title) Savages (1972) .... James, the limping man

Who Killed Mary What's 'Er Name? (1971) .... Alex ... aka Death of a Hooker (1971)

Cover Me Babe (1970) .... Cameraman ... aka Run Shadow Run (1970)

Three (1969/I) .... Taylor

Generation (1969) .... Desmond

... aka Time for Caring, A (1969)

... aka Time for Giving, A (1969) (UK)

Fitzwilly (1967) .... Oliver ... aka Fitzwilly Strikes Back (1967) (UK) ... aka Garden of Cucumbers, A (1967)

Plastic Dome of Norma Jean, The (1965) .... Andy "Family Guy" (1999) playing "Dr. Kaplan" (voice) in episode: "Road To Rhode Island" (episode # 2.13) 30 May 2000
"Family Guy" (1999) playing "Dr. Kaplan" in episode: "Brian In Love" (episode # 1.11) 7 March 2000
"Law & Order: Special Victims Unit" (1999) playing "Exec. Asst. D.A. Jack McCoy" in episode: "Entitled: Part 1" (episode # 1.15) 18 February 2000
"Homicide: Life on the Street" (1993) playing "Exec. Asst. D.A. Jack McCoy" in episode: "Sideshow: Part 2" (episode # 7.15) 19 February 1999
"Great Books" (1993) playing "Interview" in episode: "The Great Gatsby" 1999
"Homicide: Life on the Street" (1993) playing "Exec. Asst. D.A. Jack McCoy" in episode: "Baby, It's You: Part 2" (episode # 6.5) 14 November 1997
"Tales from the Crypt" (1989) playing "G.G. Devoe" in episode: "As Ye Sow" (episode # 5.2) 2 October 1993
"Amazing Stories" (1985) playing "Jordan Manmouth" in episode: "Mirror, Mirror ..." (episode # 1.19) 9 March 1986
"Dr. Kildare" (1961) playing "Mark" in episode: "Enough La Boheme for Everybody" (episode # 5.8) 11 October 1965
"Dr. Kildare" (1961) playing "Mark" in episode: "Life in the Dance Hall" (episode # 5.6) 28 September 1965