Brian Cox
- Glenrothan
2026 Director
- Super Troopers 3
2026 Captain O’Hagan
- The Sunrise File
2026 Oded Ailam (voice)
- The Parenting
2025 Frank
- The Electric State
2025 Popfly (voice)
- AMR: Dying to Change the World
2025 AMR
- Raoul Wallenberg: Missing Inaction
2025 Gustaf Wallenberg (voice)
- Seven Jewish Children
2025 Executive Producer
- Little Wing
2024 Executive Producer
- The Lord of the Rings: The War of the Rohirrim
2024 Helm Hammerhand (voice)
- That Christmas
2024 Santa (voice)
- Skelly
2024 Grandpa
- An Interview with Brian Cox
2023 Himself
- Quasi
2023 Narrator (voice)
- Bill Douglas: My Best Friend
2023 Narrator (voice)
- Mending the Line
2023 Ike Fletcher
- Prisoner's Daughter
2023 Max
- The Independent
2022 Nick Booker
- Separation
2021 Rivers
- Oleg: The Oleg Vidov Story
2021 Narrator (voice)
- Last Moment of Clarity
2020 Gilles
- The Bay of Silence
2020 Milton
- Lawrence After Arabia
2020 Father (Voice)
- John Rebus: The Lockdown Blues
2020 John Rebus
- Pretenders
2019 Henry
- Strange but True
2019 Bill
- Remember Me
2019 Shane
- The Last Right
2019 Father Reilly
- Super Troopers 2
2018 Captain O'Hagan
- The Etruscan Smile
2018 Rory MacNeil
- Kubrick by Candlelight
2018 The Narrator
- Widdershins
2018 voice
- Churchill
2017 Winston Churchill
- Vegalta: Soccer, Tsunami and the Hope of a Nation
2017 Narrator
- Bob the Builder: Mega Machines
2017 Conrad / Crunch (voice)
- An Evening with Brian Cox
2017 Himself
- The Carer
2016 Sir Michael
- Morgan
2016 Jim Bryce
- The Autopsy of Jane Doe
2016 Tommy Tilden
- Pixels
2015 Admiral Porter
- Forsaken
2015 James McCurdy
- Pacific Warriors
2015 Narrator
- Andrew Carnegie: Rags to Riches, Power to Peace
2015 Andrew Carnegie (voice)
- Killing Thyme
2015 Norman
- The Anomaly
2014 Dr. Langham
- The Gospel of John
2014 Narrator (voice) – King James Version
- Her
2013 Alan Watts (voice)
- An Adventure in Space and Time
2013 Sydney Newman
- The Curse of Edgar
2013 Edgar Hoover
- Anna
2013 Sebastian
- Believe
2013 Matt Busby
- Blumenthal
2013 Harold Blumenthal
- RED 2
2013 Ivan
- The Campaign
2012 Raymond
- Blood
2012 Lenny Fairburn
- I Missed My Mother's Funeral
2012 Old Man
- All at Sea
2012 Wally
- Ironclad
2011 Albany
- The Veteran
2011 Gerry
- Coriolanus
2011 Menenius
- The Key Man
2011 Irving
- Rise of the Planet of the Apes
2011 John Landon
- Exit Humanity
2011 Malcolm Young (voice)
- Edwin Boyd: Citizen Gangster
2011 Glover
- RED
2010 Ivan Simanov
- On Expenses
2010 Michael Martin
- As Good As Dead
2010 Reverand Kalahan
- Fantastic Mr. Fox
2009 Action 12 Reporter (voice)
- The Good Heart
2009 Jacques
- Tell-Tale
2009 Van Doren
- Scooby-Doo! and the Samurai Sword
2009 Green Dragon (voice)
- Red
2008 Associate Producer
- The Escapist
2008 Executive Producer
- Agent Crush
2008 Spanners (voice)
- The Color of Magic - Die Reise des Zauberers Teil 1
2008 Narrator
- The Color of Magic - Die Reise des Zauberers Teil 2
2008 Narrator
- Zodiac
2007 Melvin Belli
- Trick 'r Treat
2007 Mr. Kreeg
- Battle for Terra
2007 General Hemmer (voice)
- The Secret of the Nutcracker
2007 Drosselmeyer
- The Water Horse
2007 Old Angus
- A Woman in Winter
2007 Dr. Hunt
- Shoot on Sight
2007 Daniel Tennant
- The Bourne Ultimatum
2007 Ward Abbott (voice) (archive footage) (uncredited)
- Running with Scissors
2006 Dr. Finch
- The Flying Scotsman
2006 Douglas Baxter
- The Outsiders
2006 Gabriel
- Red Eye
2005 Joe Reisert
- The Ringer
2005 Gary Barker
- Hitler in Colour
2005 Narrator
- Match Point
2005 Alec Hewett
- The Strange Case of Sherlock Holmes & Arthur Conan Doyle
2005 Joseph Bell
- Blue/Orange
2005 Dr. Robert Smith
- Troy
2004 Agamemnon
- The Bourne Supremacy
2004 Ward Abbott
- The Reckoning
2004 Tobias
- Unforgivable Blackness: The Rise and Fall of Jack Johnson
2004 Other Voices (voice)
- X2
2003 William Stryker
- Sin
2003 Captain Oakes
- The Ring
2002 Richard Morgan
- 25th Hour
2002 James Brogan
- The Bourne Identity
2002 Ward Abbott
- Adaptation.
2002 Robert McKee
- Bug
2002 Cyr
- The Rookie
2002 Jim Morris Sr.
- Smallpox 2002: Silent Weapon
2002 Narrator
- Rasputin: The Devil in the Flesh
2002 Narrator
- Aleister Crowley: The Wickedest Man in the World
2002 Narrator
- The Biographer
2002 Michael O'Mara
- Loch Lomond: Legend of the Loch
2002 Narrator
- Super Troopers
2001 Captain O'Hagen
- L.I.E.
2001 Big John Harrigan
- The Affair of the Necklace
2001 Minister Breteuil
- Strictly Sinatra
2001 Chisolm
- Inside 'Manhunter'
2001 Himself
- Complicity
2000 Inspector McDunn
- Mad About Mambo
2000 Sidney McLoughlin
- Longitude
2000 Lord Morton
- Saltwater
2000 George Beneventi
- A Shot at Glory
2000 Martin Smith
- The Invention of Dr. Morel
2000 Dr. Morel
- The Minus Man
1999 Doug
- The Corruptor
1999 Sean Wallace
- For Love of the Game
1999 Gary Wheeler
- The History of the British Police Force
1999 Narrator (voice)
- Poodle Springs
1998 Clayton Blackstone
- Rushmore
1998 Dr. Nelson Guggenheim
- Desperate Measures
1998 Captain Jeremiah Cassidy
- Merchants of Venus
1998 Uncle Vladimir
- Battle of the Clans
1998 Narrator
- Kiss the Girls
1997 Chief Hatfield, Durham PD
- The Boxer
1997 Joe Hamill
- Sharpe: The Legend
1997 Hogan
- Food for Ravens
1997 Aneurin Bevan
- The Long Kiss Goodnight
1996 Dr. Nathan Waldman
- Chain Reaction
1996 Lyman Earl Collier
- The Glimmer Man
1996 Mr. Smith
- Witness Against Hitler
1996 Judge Freisler
- Braveheart
1995 Argyle Wallace
- Rob Roy
1995 Killearn
- Iron Will
1994 Angus McTeague
- The Maltese Double Cross
1994 Narrator (voice)
- Prince of Jutland
1994 Aethelwine
- Grushko
1994 Colonel Yevgeni Grushko
- The Negotiator
1994 Charlie King
- Sharpe's Eagle
1993 Major Michael Hogan
- Sharpe's Rifles
1993 Major Michael Hogan
- The Lost Language of Cranes
1992 Owen Benjamin
- The Cutter
1992
- Six Characters in Search of An Author
1992 The Director
- Deceptions
1992 Carlton Heard
- Red Fox
1991 Geoffrey Harrison
- Hidden Agenda
1990 Peter Kerrigan
- Secret Weapon
1990 Andrew Neil
- The Blasphemers' Banquet
1989 Rev. Wallace (voice)
- Murder on the Moon
1989 Voronov
- Directed by Andrei Tarkovsky
1988 Voiceover Narrator
- Beryl Markham: A Shadow on the Sun
1988 Jack Purves
- Shoot for the Sun
1987 Dunny
- Rat in the Skull
1987 Detective Inspector Nelson
- Gramsci: Everything that Concerns People
1987 Narrator
- Manhunter
1986 Dr. Hannibal Lecktor
- Home Cooking
1986 Vic
- Florence Nightingale
1985 Dr. McGregor
- The Cantor of St Thomas's
1985 Johann Sebastian Bach
- Pope John Paul II
1984 Father Góra
- King Lear
1983 Burgundy
- The Privilege
1982 Young Laird
- A Cotswold Death
1982 Dr. Gillespie
- Dalhousie's Luck
1980 Dalhousie
- Clay, Smeddum and Greenden
1976 George Simpson
- In Celebration
1975 Steven Shaw
- The Changeling
1974 Alsemero
- Nicholas and Alexandra
1971 Trotsky
- The Year of the Sex Olympics
1968 Lasar Opie
- A Knight in Tarnished Armour
1965 Nelson
- A Modern Magician
The Voice
- Wittgenstein's Poker
Bertrand Russell (voice)
- Old Pals
Jimmy
- Super Troopers 4
Captain O'Hagan
