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| Title | Year | Status | Character |
|---|
| Why Him? | 2016 | performer: "Sleigh Ride" |
| Tennis: Eastbourne | 2016 | TV Series performer - 1 episode |
| Sam | 2016 | TV Series performer - 6 episodes |
| 3 Generations | 2015 | performer: "Fit In" / writer: "Fit In" |
| Tinker Bell and the Legend of the NeverBeast | 2014 | Video performer: "Float", "Strange Sight", "1000 Years" |
| Love, Rosie | 2014 | performer: "Suddenly I See" - as K T Tunstall / writer: "Suddenly I See" - as K T Tunstall |
| Million Dollar Arm | 2014 | performer: "We Could Be Kings" - as KT Tunstall / producer: "We Could Be Kings" - as KT Tunstall / writer: "We Could Be Kings" - as KT Tunstall |
| Guapas | TV Series performer - 2 episodes, 2014 writer - 2 episodes, 2014 |
| Winter's Tale | 2014 | performer: "Miracle" / producer: "Miracle" / writer: "Miracle" |
| Conan | TV Series performer - 1 episode, 2011 writer - 1 episode, 2011 |
| Dancing with the Stars | 2011 | TV Series writer - 1 episode |
| The Tonight Show with Jay Leno | TV Series performer - 1 episode, 2010 writer - 1 episode, 2010 |
| Holby City | 2010 | TV Series performer - 1 episode |
| White Face | 2010 | Short "Suddenly I See" |
| 90210 | 2010 | TV Series 1 episode |
| Miranda | TV Series performer - 1 episode, 2009 writer - 1 episode, 2009 |
| Karaoke Revolution | 2009 | Video Game performer: "Black Horse And The Cherry Tree" / writer: "Black Horse And The Cherry Tree" - as Katie Tunstall |
| Chiamatemi Giò | TV Series performer - 3 episodes, 2009 writer - 3 episodes, 2009 |
| Volverte a ver | 2008 | performer: "Hopeless" / writer: "Hopeless" |
| Machen wir's auf Finnisch | 2008 | TV Movie performer: "Suddenly I See" / writer: "Suddenly I See" |
| Três Irmãs | 2008 | TV Series performer: "Little Favours" / writer: "Little Favours" |
| The X Factor | TV Series performer - 1 episode, 2008 writer - 1 episode, 2008 |
| Schlaflos in Oldenburg | 2008 | TV Movie performer: "Miniature Desaster" / writer: "Miniature Desaster" |
| The Women | 2008/I | performer: "Someday Soon" - as KT Tunstall / writer: "Someday Soon" - as Katie Tunstall |
| Gavin & Stacey | TV Series 2 episodes, 2007 - 2008 performer - 1 episode, 2007 |
| It Takes Two | 2008 | TV Series writer - 1 episode |
| Cover Art | 2008 | TV Series short performer - 1 episode |
| Idols | 2005-2007 | TV Series writer - 2 episodes |
| L'isola dei famosi | TV Series performer - 1 episode, 2007 writer - 1 episode, 2007 |
| Ruby Blue | 2007 | performer: "Warm" / writer: "Warm" |
| Alles is liefde | 2007 | performer: "Other Side of the World" / writer: "Other Side of the World" |
| Cold Case | 2007 | TV Series performer - 1 episode |
| Side Order of Life | 2007 | TV Series performer - 1 episode |
| Yu Yu Hakusho Abridged | 2007 | TV Series performer - 1 episode |
| Are We Done Yet? | 2007 | performer: "Black Horse & The Cherry Tree" / writer: "Black Horse & The Cherry Tree" |
| Because I Said So | 2007 | performer: "Black Horse and a Cherry Tree" / writer: "Black Horse and a Cherry Tree" |
| Austin City Limits | 2006 | TV Series documentary performer - 1 episode |
| 3 lbs. | TV Series performer - 1 episode, 2006 writer - 1 episode, 2006 |
| Criminal Minds | 2006 | TV Series writer - 1 episode |
| Man of the Year | 2006 | performer: "Black Horse And The Cherry Tree" / writer: "Black Horse And The Cherry Tree" - as Katie Tunstall |
| Ugly Betty | 2006 | TV Series performer - 1 episode |
| Dancing with the Stars | 2006 | TV Series writer - 1 episode |
| Torvill & Dean's Dancing on Ice | TV Series performer - 2 episodes, 2006 writer - 2 episodes, 2006 |
| So You Think You Can Dance | TV Series performer - 8 episodes, 2006 writer - 5 episodes, 2006 |
| The Devil Wears Prada | 2006 | performer: "Suddenly I See" 2005 - as KT Tunstall / writer: "Suddenly I See" 2005 - as KT Tunstall |
| Windfall | 2006 | TV Series performer: "Suddenly I See" |
| Grey's Anatomy | TV Series performer - 4 episodes, 2005 - 2006 writer - 3 episodes, 2005 - 2006 |
| Pepper Dennis | TV Series performer - 1 episode, 2006 writer - 1 episode, 2006 |
| SingStar Rocks! | 2006 | Video Game performer: "Black Horse And The Cherry Tree" / writer: "Black Horse And The Cherry Tree" |
| Conviction | 2006 | TV Series performer - 2 episodes |
| The Loop | 2006 | TV Series 1 episode |
| Belíssima | 2005 | TV Series performer: "Suddenly I See" |
| Nationwide Mercury Prize 2005 | 2005 | TV Special performer: "Black Horse And The Cherry Tree" / writer: "Black Horse And The Cherry Tree" |
| The 4400 | 2005 | TV Series 1 episode |
| Como uma Onda | 2004 | TV Series performer: "Other Side of the World" |