(1984) The Killing Fields

as Sydney Schanberg

(1980) Heaven's Gate

as Frank Canton

(1974) The Great Gatsby

as Nick Carraway

(1986) Hannah and Her Sisters

as David (uncredited)

(1989) Crimes and Misdemeanors

as Ben

(1994) Serial Mom

as Eugene Sutphin

(1987) September

as Peter

(1977) Capricorn One

as Lt. Col. Peter Willis

(1980) Hopscotch

as Jack Cutter

(2003) Le Divorce

as Chester Walker

(1985) Warning Sign

as Cal Morse

(1975) Rancho Deluxe

as Cecil Colson

(1978) Interiors

as Mike

(1995) The Journey of August King

as Mooney Wright

(2002) The Matthew Shepard Story

as Dennis Shepard

(1997) Shadow Conspiracy

as The President

(1991) The Man in the Moon

as Matthew Trant

(1991) Mindwalk

as Jack Edwards

(2010) The Rally to Restore Sanity and/or Fear

as Self

(1989) Welcome Home

as Woody

(1973) The Glass Menagerie

as Tom Wingfield

(1969) Generation

as Desmond

(1994) The Enemy Within

as President William Foster

(1974) Reflections of Murder

as Michael Elliott

(1996) The Proprietor

as Harry Bancroft

(2024) Merchant Ivory

as Self

(1979) Eagle's Wing

as White Bull

(1986) The Fifth Missile

as Capt. Allard Renslow

(1987) Swimming to Cambodia

as Additional cast from 'The Killing Fields' (archive footage)

(1982) Games Mother Never Taught You

as David Bentells

(1975) Journey into Fear

as Mr. Graham

(1987) The Room Upstairs

as Travis Coles

(1998) Miracle at Midnight

as Dr. Karl Koster

(1969) Three

as Taylor

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

as Jim Delmore

(1995) Nixon

as Richard Helms

(1989) Lantern Hill

as Andrew Stuart

(1972) Mahoney's Last Stand

as Felix

(2024) A Case for Love

as Self

(1994) David's Mother

as John Nils

(1993) I'll Fly Away: Then and Now

as Forrest Bedford

(1983) Dempsey

as Doc Kearns

(1980) Sweet William

as William McClusky

(1994) Assault at West Point: The Court-Martial of Johnson Whittaker

as Daniel Chamberlain

(1970) Cover Me Babe

as Cameraman

(1990) Night of 100 Stars III

as Self

(1971) Who Killed Mary Whats'ername?

as Alex Monte

(2015) Please Be Normal

as Dad

(2016) Anesthesia

as Prof. Walter Zarrow

(1984) The Boy Who Loved Trolls

as Ofoeti

(1986) Flagrant désir

as Inspecteur Gerry Morrison

(1985) Love Lives On

as Bernie

(1998) Exiled

as Jack McCoy

(2024) The Six Triple Eight

as Franklin Delano Roosevelt

(1986) Just Between Friends

as Harry Crandall

(1993) A Captive in the Land

as Royce

(1973) Much Ado About Nothing

as Benedick

(1972) Savages

as James, the Limping Man

(2000) A House Divided

as David Dickson

(2016) Miss Sloane

as George Dupont

(1995) Amazing Stories: The Movie IV

as (archive footage)

(1967) Fitzwilly

as Oliver

(1987) Devil's Paradise

as Jones

(1966) The Plastic Dome of Norma Jean

as Andy

(1976) Sweet Revenge

as Le Clerq

(1985) Finnegan Begin Again

as Paul Broadbent

(1983) In Defense of Kids

as Paul Wilcox

(2017) Monkey Business: The Adventures of Curious George's Creators

as Narrator (voice)

(2018) On the Basis of Sex

as Erwin Griswold

(2020) The Man in the Woods

as Headmaster Waldorf

(1994) Tennessee Williams: Orpheus of the American Stage

as Tom Wingfield (archive footage)

(2018) The Mayo Clinic

as Charlie Mayo (voice)

(2006) The Best of The Tony Awards: The Plays

as John Honeyman (segment "A Walk in the Woods")

(1988) A Walk in the Woods

as John Honeyman

(1999) In Bad Taste

as Self

(2018) Jane Fonda in Five Acts

as Self - Actor

(2015) Dean Smith

as Narrator

(2017) Dateline: Saigon

as Narrator (voice)

(1992) Earth and the American Dream

as Reader (voice)

(1980) Friendly Fire

as C.D.B. Bryan

(2021) Kurt Vonnegut: Unstuck in Time

as Self (voice)

(1999) Moment of Impact: Stories of the Pulitzer Prize Photographs

as Self / Host / Narrator

(2020) Gatsby in Connecticut: The Untold Story

as Self

(2003) The Commission

as J. Lee Rankin

(1999) The Unfinished Journey

as Narrator (voice)

(2015) And It Was Good

as Judge Alexander Baas / Doctor / Gravedigger

Rain Falls from Earth: Surviving Cambodia's Darkest Hour

as Self (voice)

(2004) Hammer and Cycle

as Self - Narrator

(1999) Here Am I, Send Me: The Story of Jonathan Daniels

as Narrator

Carousel

as ---

(1999) Law and Order: Justice

as Jack McCoy

(1990) Law & Order

as Jack McCoy

(1982) Q.E.D.

as ---

(1989) Tales from the Crypt

as G.G. Devoe (segment "As Ye Sow")

(1984) Jeopardy!

as Self

(2007) Masters of Science Fiction

as ---

(2005) The Colbert Report

as ---

(1991) I'll Fly Away

as Forrest Bedford

(1993) Homicide: Life on the Street

as Jack McCoy

(1951) Hallmark Hall of Fame

as Travis Coles

(1980) Oppenheimer

as Robert Oppenheimer

(1990) The Civil War

as Abraham Lincoln

(1997) The View

as Self

(2012) The Newsroom

as Charlie Skinner

(1961) Dr. Kildare

as Mark

(1997) Thomas Jefferson

as Thomas Jefferson (voice)

(2015) Grace and Frankie

as Sol Bergstein

(1999) Family Guy

as Bruce Kaplan (voice)

(1985) Amazing Stories

as Jordan Manmouth

(2023) Liv Ullmann: A Road Less Travelled

as Self

(1988) Lincoln

as Abraham Lincoln

(1995) Time Life's Lost Civilizations

as Narrator

(2013) Jo

as ---

(2015) The Late Show with Stephen Colbert

as Self

(1997) Lewis & Clark - The Journey of the Corps of Discovery

as Thomas Jefferson (voice)

(1989) The Nightmare Years

as Bill Shirer

(1999) Law & Order: Special Victims Unit

as Jack McCoy

(2005) Law & Order: Trial by Jury

as Jack McCoy

(2017) Godless

as Marshall John Cook

(1975) People's Choice Awards

as Self - Presenter

(2022) The Dropout

as George Shultz

(1997) The View

as Self - Guest

(1975) Saturday Night Live

as Self - Cameo (uncredited)

(2011) Prohibition

as Reader (voice)

(1992) HBO First Look

as ---