(1992) Jennifer Eight

as Chief Citrine

(2006) Invincible

as Frank Papale

(1972) Slaughterhouse-Five

as Weary

(1995) The Quick and the Dead

as Eugene Dred

(1998) Mercury Rising

as Lomax

(1991) Rambling Rose

as Dr. Martinson

(1988) Homeboy

as Grazziano

(1993) Gettysburg

as Sergeant Buster Kilrain

(2007) American Loser

as Bert

(1980) The Lathe of Heaven

as Dr. William Haber

(1981) The Funhouse

as The Barker

(2003) Gods and Generals

as Sgt. Buster Kilrain

(2000) Two Family House

as Jim O'Neary

(1984) Flashpoint

as Brook

(1971) Believe in Me

as Clancy

(1996) Calm at Sunset

as Kelley Dobbs

(2002) Mark Twain

as Mark Twain (voice)

(1984) Something About Amelia

as Dr. Kevin Farley

(2000) Sally Hemings: An American Scandal

as Thomas Paine

(1984) Attack on Fear

as Richard Ofshe

(1972) Portnoy's Complaint

as Smolka

(1982) The Elephant Man

as Frederick Treves

(1971) Hogan's Goat

as Peter Boyle

(2019) Prairie Dog Manor

as Narrator

(2001) Black Knight

as King Leo

(1988) Jesse

as Ken Brand

(1996) Lawnmower Man 2: Beyond Cyberspace

as Jonathan Walker

(1991) One Good Cop

as Lt. Danny Quinn

(1992) Breaking the Silence

as DA Jack Hastings

(1990) When Will I Be Loved?

as Jerry Howard

(1988) Funny Farm

as Crum Petree (uncredited)

(1978) F.I.S.T.

as Vince Doyle

(1994) The Whipping Boy

as Hold-Your-Nose-Billy

(1987) The Sun and the Moon

as ---

(1973) Shamus

as The Kid

(2015) The Keepers of the Streak

as Narration

(1977) The Deadliest Season

as George Graff

(1999) The Confession

as Mel Duden

(1973) Mr. Inside/Mr. Outside

as Fence #1

(2018) The Mayo Clinic

as William Worrall Mayo

(2004) Unforgivable Blackness: The Rise and Fall of Jack Johnson

as Other Voices (voice)

(2025) The Gettysburg Address

as Daniel Webster (voice)

(1978) Paradise Alley

as Stitch

(1977) The Gardener's Son

as James Gregg

(2003) Mystic River

as Theo (uncredited)

(2000) Thirteen Days

as Gen. Curtis LeMay

(1983) Rage of Angels

as Ken Bailey

(1977) Johnny, We Hardly Knew Ye

as David F. Powers

(2017) Walden

as Henry David Thoreau

(1987) Star Trek: The Next Generation

as Kahless

(1984) Miami Vice

as Commander Fox

(1997) Oz

as Seamus O'Reilly

(1985) The Equalizer

as John Allenwaite

(2001) Law & Order: Criminal Intent

as Frank McNare

(1995) JAG

as Willie Meizer / Roscoe Martin

(2007) The Bronx Is Burning

as Gabe Paul

(1993) Homicide: Life on the Street

as ---

(1951) Hallmark Hall of Fame

as Kelly Dobbs

(1995) New York News

as ---

(1970) A World Apart

as ---

(1995) Streets of Laredo

as Mox Mox

(2001) Law & Order: Criminal Intent

as Jackie Dooley

(2000) Dark Angel

as Operative at Warehouse

(2002) Mark Twain

as Mark Twain (voice)

(2011) Person of Interest

as George Massey

(2009) The Good Wife

as Jonas Stern

(1983) Rage of Angels

as Ken Bailey

(1979) The Scarlet Letter

as Roger Chillingworth

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

as Patrick Gass

(1990) Law & Order

as Detective John Flynn

(2008) Life on Mars

as Donovan Stamp

(1995) The Outer Limits

as The Control Voice (voice) (uncredited)

(2011) Prohibition

as Reader (voice)

(2000) Sally Hemings: An American Scandal

as Thomas Paine

(2007) The Black Donnellys

as Jenny's Pop

(2019) Prairie Dog Manor

as Narrator

(1971) Great Performances

as Peter Boyle

(1963) Miss USA

as Judge