- The Loud House Movie
2026 Angus (voice)
- Doctor Who: The Satan Pit
2026 The Doctor (archive footage)
- The Thursday Murder Club
2025 Ian
- Macbeth
2025 Macbeth
- Doctor Who: Wish World & The Reality War
2025 The Doctor / The Doctor (archive footage) (uncredited)
- Doctor Who at the Proms
2024 The Doctor (14) (10) (archive footage)
- Doctor Who Children in Need Special 2023
2023 The Doctor
- Doctor Who: The Bedtime Story
2023 The Doctor
- National Theatre Live: Good
2023 Professor John Halder/Johnny
- Doctor Who: 60th Anniversary Specials
2023 The Doctor (archive footage)
- The Amazing Maurice
2022 Dangerous Beans (voice)
- Chip 'n Dale: Rescue Rangers
2022 Scrooge McDuck (voice)
- The Paloni Show! Halloween Special!
2022 Roach Chef (voice)
- The Big Night In
2020 Mr. Logan
- Heart to Heart
2020 Heart
- Good Omens: Lockdown
2020 Crowley (voice)
- The Real Des: The Dennis Nilsen Story
2020 Narrator (voice)
- Screening
2020 Timothy
- How to Train Your Dragon: The Hidden World
2019 Spitelout / Ivar the Whitless (voice)
- Spy in the Snow
2018 Narrator
- You, Me and Him
2018 John
- Mary Queen of Scots
2018 John Knox
- Bad Samaritan
2018 Cale Erendreich
- The Highway Rat
2018 The Highway Rat (voice)
- DuckTales: Destination Adventure!
2018 Scrooge McDuck (voice)
- Mad to Be Normal
2017 RD Laing
- Ferdinand
2017 Angus (voice)
- Fireman Sam: Alien Alert! The Movie
2017 Buck Douglas (voice)
- Derren Brown: Pushed to the Edge
2016 Himself
- Einstein 100
2016 Narrator
- Mickey Mouse Clubhouse: Mickey's Monster Musical
2015 Igor the Door (voice)
- 96 Ways to Say I Love You
2015 Mark
- Dames of Classic Drama at the BBC
2015 Narrator
- Knights of Classic Drama at the BBC
2015 Narrator
- Inside Einstein's Mind: The Enigma of Space and Time
2015 Narrator (Voice UK)
- Doctor Who: The Husbands of River Song
2015 The Doctor (10) (picture) (uncredited)
- Postman Pat: The Movie
2014 Wilf (voice)
- What We Did on Our Holiday
2014 Doug McLeod
- Wings 3D
2014 Narrator (voice)
- Doctor Who Live: The Afterparty
2013 The Doctor (archive footage)
- Earthflight
2013 Himself - Narrator
- RSC Live: Richard II
2013 Richard II
- The Day of the Doctor: Cinema Intro
2013 The Doctor (10)
- Doctor Who: The Day of the Doctor
2013 The Doctor (10)
- The Science of Doctor Who
2012 The Doctor (archive footage)
- The Pirates! In an Adventure with Scientists!
2012 Charles Darwin (voice)
- Nativity 2: Danger in the Manger!
2012 Donald / Roderick Peterson
- So You Want To Be A Pirate!
2012 Charles Darwin
- The Decoy Bride
2011 James Arber
- United
2011 Jimmy Murphy
- Polar Bear: Spy on the Ice
2011 Narrator
- Fright Night
2011 Peter Vincent
- The Ballad of Russell & Julie
2011 Russell T. Davies / Self
- The Itch of the Golden Nit
2011 Radio Newsreader / Stretchy McStretch (voice)
- Much Ado About Nothing
2011 Benedick
- Lachlan Macquarie: The Father of Australia
2011 Narrator
- Gerry Rafferty: Right Down the Line
2011 Narrator
- Come in Number Five
2011 Presenter
- Stealing Shakespeare
2010 Narrator
- How to Train Your Dragon
2010 Spitelout (voice)
- Doctor Who: The End of Time
2010 The Doctor
- Hamlet
2009 Hamlet
- Glorious 39
2009 Hector
- St Trinian's 2: The Legend of Fritton's Gold
2009 Captain Lord Pomfrey / Sir Piers Pomfrey
- Doctor Who: The Waters of Mars
2009 The Doctor
- Doctor Who: Planet of the Dead
2009 The Doctor
- The Catherine Tate Show: Nan's Christmas Carol
2009 Ghost of Christmas Present
- Monty Python in Aberystwyth
2009 Narrator
- Einstein and Eddington
2008 Arthur Eddington
- Human Footprint
2008 Narrator (self)
- Doctor Who: Music of the Spheres - Doctor Who at the Proms 2008
2008 The Doctor (Uncredited)
- Doctor Who: The Next Doctor
2008 The Doctor
- David Tennant's Video Diary
2007 Director
- Learners
2007 Chris
- Doctor Who: Voyage of the Damned
2007 The Doctor
- Recovery
2007 Alan Hamilton
- Doctor Who: Time Crash
2007 The Doctor (10)
- Doctor Who: The Infinite Quest
2007 The Doctor (voice)
- Doctor Who: The Runaway Bride
2006 The Doctor
- The Chatterley Affair
2006 Richard Hoggart
- Harry Potter and the Goblet of Fire
2005 Barty Crouch Junior
- The Quatermass Experiment
2005 Doctor Gordon Briscoe
- Sweetnightgoodheart
2005 Pete
- Doctor Who: The Christmas Invasion
2005 The Doctor
- Traffic Warden
2004 Traffic Warden
- Old Street
2004 Mr. Watson
- The Deputy
2004 Christopher Williams
- Bright Young Things
2003 Ginger Littlejohn
- Nine 1/2 Minutes
2002 Charlie
- The Last September
2000 Captain Gerald Colthurst
- Being Considered
2000
- L.A. Without a Map
1999 Richard
- Bite
1997 Alastair Galbraith
- Jude
1996 Drunk Undergraduate
- Quality Control
1996 Gary Innes
- Spaces
1993 Vinny
- Biting the Hands
1989 3rd Squaddie
- The Amazing Maurice: The Waters of Life
Dangerous Beans (voice)
