- Touché
2026 Narrator (voice)
- Frank and Percy
2026
- The Three Urns
2026 Bookseller
- Joke
2026
- Hexed
2026 Elias Quire (voice)
- Rik Mayall's Sketches: Rare And Unseen
2026 Narrator (voice)
- Time Travel Is Dangerous!
2025 Narrator (voice)
- A Friend of Dorothy
2025 Dickie
- The Castle, Rebuilding History
2025 Narrator
- Recall Me Maybe
2025 Kevin
- Christmas Karma
2025 Radio Presenter (Voice)
- We Work for the Dead
2024 Pruitt (voice)
- Treasure
2024 Edek
- Black Samphire
2024 Mari's Boss
- Bottom: Exposed
2024 Narrator (voice)
- Doctor Who at the Proms
2024 C (archive footage)
- About a Hero
2024
- U.Me: The Musical
2024 Narrator
- Mind Games - The Experiment
2023 Narrator
- Red, White & Royal Blue
2023 King James III
- The Canterville Ghost
2023 Executive Producer
- The Inventor
2023 Leonardo da Vinci (voice)
- John Craxton: A Life of Gifts
2023 John Craxton (Voice)
- Harry Potter 20th Anniversary: Return to Hogwarts
2022 Chapter Passages Narrator (voice)
- Mr Bear's Christmas
2022 Narrator
- It's Always Something
2021 Narrator
- Night of the Living Dread
2021 Meditation Guru (voice)
- Dancing on Thin Ice with Torvill & Dean
2021 Narrator
- The Picture of Dorian Gray
2021 The Interviewer
- Firebird
2021 Thanks
- The Big Night In
2020 Lord Melchett
- Tomorrow
2019 Chris
- Missing Link
2019 Lord Piggot-Dunceby (voice)
- Almost Human
2019 Narrator
- Dancing with the Birds
2019 Narrator
- Mankind
2019 Executive Producer
- Ponyboi
2019 Executive Producer
- The Con Is On
2018 Sidney
- Duck Duck Goose
2018 Frazier (voice)
- M. C. Escher: Journey to Infinity
2018 M. C. Escher (voice)
- Dead in a Week (Or Your Money Back)
2018 Executive Producer
- The Hippopotamus
2017 Novel
- Love & Friendship
2016 Mr. Johnson
- Alice Through the Looking Glass
2016 Cheshire Cat (voice)
- The Man Who Knew Infinity
2016 Sir Francis Spring
- Pocoyo's Halloween
2016 Narrator
- Santa Forgot
2016 Narrator
- Wild Africa / Tiny Giants
2016 Narrator (Tiny Giants)
- Tickled
2016 Executive Producer
- Rocky Horror Show Live
2015 Narrator
- Wimbledon: 2015 Official Film Review
2015 Narrator
- Nightstand
2015 Executive Producer
- That Sugar Film
2014 The Sugar Family Sketch
- The Hobbit: The Battle of the Five Armies
2014 Master of Laketown
- Tiny Giants 3D
2014 Narrator
- Mahout: The Great Elephant Walk
2014 Narrator
- Marked
2014 Father Christmas
- The Hobbit: The Desolation of Smaug
2013 The Master of Laketown
- The Look of Love
2013 Barrister
- Sir David Frost: That Was the Life That Was
2013 Narrator
- The Lonely Dodo
2013 Narrator/Mascarene Grass Frog
- Super Clyde
2013 Randolph
- A Liar's Autobiography: The Untrue Story of Monty Python's Graham Chapman
2012 Oscar Wilde (voice)
- Doors Open
2012 Executive Producer
- Cicada Princess
2012 Narrator (voice)
- Twelfth Night
2012 Malvolio
- Walking the Dogs
2012 Executive Producer
- March of the Dinosaurs
2011 Narrator (UK)
- The Borrowers
2011 Professor Mildeye
- Benjamin Sniddlegrass and The Cauldron of Penguins
2011 The Narrator
- Holy Flying Circus
2011 God
- Sherlock Holmes: A Game of Shadows
2011 Mycroft Holmes
- Ocean Giants
2011 Narrater
- Let Them Talk: A Celebration of New Orleans Blues
2011 Executive Producer
- Hugh Laurie: Down by the River
2011 Executive Producer
- Alice in Wonderland
2010 Cheshire Cat (voice)
- Stephen Fry Live at the Sydney Opera House
2010 Stephen Fry
- Lost Connection
2010 Dad
- House of Boys
2009 Dr. Marsh
- Spectacled Bears: Shadows of the Forest
2008 Narrator
- Tales of the Riverbank
2008 Owl (voice)
- Pocoyo: Fun & Dance with Pocoyo
2008 Narrator
- Pocoyo & the Space Circus
2008 Narrator (English)
- Last of the Dambusters
2008 Narrator
- Me and My Girl
2008 Additional Writing
- St Trinian's
2007 Stephen Fry
- Eichmann
2007 Minister Tormer
- Snow White: The Sequel
2007 The Narrator (voice)
- Stephen Fry: HIV & Me
2007 Writer
- V for Vendetta
2006 Deitrich
- Stormbreaker
2006 Smithers
- The Transporters
2006 Narrator
- V for Vendetta: Unmasked
2006 Deitrich
- The Magic Flute
2006 Writer
- A Cock and Bull Story
2005 Patrick Curator / Parson Yorick
- MirrorMask
2005 Librarian
- Tom Brown's Schooldays
2005 Dr. Thomas Arnold
- Meet Pocoyo!
2005 Narrator
- Pocoyo & Friends
2005 Narrator
- The Hitchhiker's Guide to the Galaxy
2005 Narrator / The Guide (voice)
- The Funny Blokes of British Comedy
2005 General Sir Anthony Melchett (archive footage) (uncredited)
- Tooth
2004 Pedro
- The Life and Death of Peter Sellers
2004 Maurice Woodruff
- A Bear Named Winnie
2004 Protheroe
- The Two Loves of Anthony Trollope
2004 Narrator
- Bright Young Things
2003 Director
- Le Divorce
2003 Piers Janely
- The Biggest Nose in Borneo
2003 Narrator
- Thunderpants
2002 Sir Anthony Silk
- Surrealissimo: The Trial of Salvador Dali
2002 Andre Breton
- Doctor Who: Death Comes to Time
2002 The Minister of Chance
- The Discovery of Heaven
2001 Onno Quist
- Gosford Park
2001 Inspector Thompson
- Four Play
2001 Nigel Steele
- Funny Old World
2001 Narrator (voice)
- Funny Old World 2
2001 Narrator (voice)
- Funny Old World 3
2001 Narrator (voice)
- Funny Old World 4
2001 Narrator (voice)
- Funny Old World 5
2001 Narrator (voice)
- J.K. Rowling - Harry Potter and Me
2001 Narrator of the Audiobooks
- Lucky Break
2001 Book
- Whatever Happened to Harold Smith?
2000 Dr. Peter Robinson
- Longitude
2000 Sir Kenelm Digby
- Relative Values
2000 Frederick Crestwell
- Sabotage!!
2000 Wellington
- Best
2000 Frazer Crane
- Blackadder: Back & Forth
1999 Melchett
- The Tichborne Claimant
1999 Hawkins
- A Civil Action
1998 Pinder
- Wilde
1997 Oscar Wilde
- Spice World
1997 Judge
- The Wind in the Willows
1996 The Judge
- Cold Comfort Farm
1995 Mybug
- The Steal
1995 Wimborne
- Sense and Sensibility
1995 Thanks
- I.Q.
1994 James Morland
- Stalag Luft
1993 Wing Commander James Forrester
- Camp Christmas
1993 Santa Claus
- Peter's Friends
1992 Peter Morton
- Common Pursuit
1992
- Old Flames
1990 Daniel Davenport
- A Fish Called Wanda
1988 Hutchison
- A Handful of Dust
1988 Reggie
- Blackadder's Christmas Carol
1988 Lords Melchett / Frondo
- Blackadder: The Cavalier Years
1988 King Charles I
- Kung-Fu Master!
1988 himself (footage)
- The Laughing Prisoner
1987 Writer
- The Good Father
1985 Creighton
- The Cellar Tapes
1982 Writer
- Chariots of Fire
1981 Cambridge Student at Society Day (uncredited)
- Black Samphire
Executive Producer
- This Is Soho
Narrator (voice)
- Red, White & Royal Wedding
King James III
- The Liar
Executive Producer
- The Eden Express
Executive Producer
