Actor
- Poe (2010) .... Edgar Allan Poe (rumored)
- A Wing and a Prayer (2010) .... (rumored)
- The Road (2009) .... Man
- The People Speak (2009) .... Himself
- Appaloosa (2008) .... Everett Hitch
- Ceremonia de inauguración - 56º festival internacional de cine de San Sebastián (2008) .... Himself (archive footage) (uncredited)
- Reclaiming the Blade (2008) .... Himself
- An Evening at the Academy Awards (2008) .... Himself
- Live from the Red Carpet: The 2008 Screen Actors Guild Awards (2008) .... Himself
- Good (2008) .... Halder
- Spirit Riders (2008) .... Himself
- Saving the American Wild Horse (2008) .... Himself - Host
- Eastern Promises (2007) .... Nikolai
- Ceremonia de apertura - 55º festival internacional de cine de San Sebastián (2007) .... Himself
- Casting: El camino del éxito (2007) .... Himself (archive footage) (uncredited)
- XXI Premios Anuales de la Academia (2007) .... Himself - Nominee: Best Lead Actor
- Alatriste (2006) .... Diego Alatriste
- Too Commercial for Cannes (2006) .... Himself
- A History of Violence (2005) .... Tom Stall
- Cheshmane John Malkovich 1: Viggo Mortensen (2005) .... Himself (archive footage)
- Ringers: Lord of the Fans (2005) .... Himself
- As Smart As They Are: The Author Project (2005) .... Himself
- HBO First Look A History of Violence (2005) .... Himself
- Hidalgo (2004) .... Frank Hopkins
- America's First Horse: Hidalgo and the Spanish Mustang (2004) ....
- DNZ: The Real Middle Earth (2004) .... Himself / Aragorn (archive footage)
- Ringens disipler (2004) ....
- The Lord of the Rings: The Quest Fulfilled (2003) .... Himself
- The Lord of the Rings: The Return of the King (2003) .... Aragorn
- Filmland (2003) .... Himself (2 episodes, 2003-2004)
- 4Pop (2003) .... Himself (3 episodes, 2003-2004)
- The Lord of the Rings: The Two Towers (2002) .... Aragorn
- Go' aften Danmark (2002) .... Himself - Actor / ... (2 episodes, 2005-2007)
- Lord of the Piercing (2002) .... Aragorn (archive footage)
- Making the Movie (2002) .... Himself
- The Lord of the Rings: The Fellowship of the Ring (2001) .... Aragorn
- A Passage to Middle-earth: Making of 'Lord of the Rings' (2001) .... Himself
- Quest for the Ring (2001) .... Himself / Aragorn / Strider
- 28 Days (2000) .... Eddie Boone
- A Walk on the Moon (1999) .... Walker Jerome
- Psycho (1998) .... Samuel 'Sam' Loomis
- A Perfect Murder (1998) .... David Shaw
- La Pistola de mi hermano (1997) .... Juanito
- G.I. Jane (1997) .... Master Chief
- Albino Alligator (1997) .... Guy Foucard
- The Portrait of a Lady (1997) .... Caspar Goodwood
- Vanishing Point (1997) .... Jimmy Kowalski
- Daylight (1996) .... Roy Nord
- The Passion of Darkly Noon (1996) .... Clay
- The Prophecy (1995) .... Lucifer
- Crimson Tide (1995) .... Lt. Peter 'WEAPS' Ince
- Gimlet (1995) .... Hombre (Man)
- Caiga quien caiga - CQC (1995) .... Himself (1 episode, 2003)
- The Crew (1994) .... Phillip
- Floundering (1994) .... Homeless Man
- Ewangelia wedlug Harry'ego (1994) .... Wes
- American Yakuza (1993) .... Nick Davis / David Brandt
- The Young Americans (1993) .... Carl Frazer
- Carlito's Way (1993) .... Lalin
- Ruby Cairo (1993) .... John E. 'Johnny' Faro
- Boiling Point (1993) .... Ronnie
- The Indian Runner (1991) .... Frank Roberts
- The Reflecting Skin (1990) .... Cameron Dove
- Young Guns II (1990) .... John W. Poe
- Leatherface: Texas Chainsaw Massacre III (1990) .... Tex
- Tripwire (1990) .... Hans
- Prison (1989) .... Burke / Forsythe Electrocution
- Fresh Horses (1988) .... Green
- Salvation! (1987) .... Jerome Stample
- The Purple Rose of Cairo (1985) .... (scenes deleted)
- Witness (1985) .... Moses Hochleitner
- ABC Afterschool Specials High School Narc (1985) .... Tim
- George Washington (1984) .... Lieutenant at LeBoeuf
- The Lord of the Rings: The Return of the King (2003) .... featured soloist
- Thumbsucker (2005) .... special thanks
- The Thin Red Line (1999) .... thanks
- A Perfect Murder (1998) .... thanks: for genereous cooperation in allowing their artwork created in this film


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