| Movie | 2007 | Mrs. Ratcliffe's Revolution | Dorothy Ratcliffe | |
| Movie | 2006 | Sixty Six | Aunt Lila | |
| Movie | 2006 | Love and Other Disasters | Tallulah Wentworth | |
| Movie | 2013 | Doctor Who Live: The Afterparty | Donna Noble (archive footage) | |
| Movie | 2012 | The Women of Doctor Who | Donna Noble (archive footage) | |
| Movie | 2014 | Doctor Who: The Ultimate Companion | Donna Noble (archive footage) | |
| Movie | 2007 | David Tennant's Video Diary | Self | |
| Movie | 2021 | Monster Family 2 | Baba Yaga (voice) | |
| Movie | 2006 | Starter for 10 | Julie Jackson | |
| Movie | 2010 | Gulliver's Travels | Queen Isabel | |
| Movie | 2015 | Not Sophie's Choice | Mummy | |
| Movie | 2006 | Scenes of a Sexual Nature | Sara | |
| Movie | 2010 | The One Ronnie | Sue | |
| Movie | 2007 | The Bad Mother's Handbook | Karen Cooper | |
| Movie | 2009 | The Catherine Tate Show: Nan's Christmas Carol | Joannie Taylor | |
| Movie | 2013 | Catherine Tate's Nan vs Holby City | Nan | |
| Movie | 2018 | Saving the British Bulldog | Self - Presenter | |
| Movie | 2009 | Doctor Who: Music of the Spheres - Doctor Who at the Proms 2008 | Self - Guest Presenter | |
| Movie | 2020 | The Big Night In | Lauren Cooper | |
| Movie | 2015 | Little Britain Sketch | Sister | |
| Movie | 2011 | The Ballad of Russell & Julie | Julie Gardner / Self | |
| Movie | 2016 | Bruce's Hall of Fame with Alexander Armstrong | Self | |
| Movie | 2015 | Dara Ó Briain Meets Stephen Hawking | Self | |
| Movie | 2017 | Comic Relief: Red Nose Day | Lauren Cooper | |
| Movie | 2011 | Catherine Tate: Laughing at the Noughties | Self - Presenter | |
| Movie | 2013 | Frost on Sketch Shows | Self | |
| Movie | 2013 | Khumba | Nora (voice) | |
| Movie | 2011 | Much Ado About Nothing | Beatrice | |
| Movie | 2011 | The Itch of the Golden Nit | Stella (voice) | |
| Movie | 2012 | The Secret Policeman's Ball | Self | |
| Movie | 2023 | Rally Road Racers | Juni Hakansdotter (voice) | |
| Movie | 2006 | Doctor Who: The Runaway Bride | Donna Noble | |
| Movie | 2014 | 50 Years of BBC Two Comedy | Self | |
| Movie | 2014 | Nativity 3: Dude, Where's My Donkey?! | Sophie | |
| Movie | 2023 | imagine… Russell T Davies: The Doctor and Me | Self | |
| Movie | 2015 | The Vote | Kirsty Henderson | |
| Movie | 2015 | Unity | Narrator (voice) | |
| Movie | 2015 | SuperBob | Theresa | |
| Movie | 2016 | Billionaire Boy | Sapphire Diamond | |
| Movie | 2016 | Do Not Disturb | Anna | |
| Movie | 2016 | Shakespeare Live! From the RSC | Self - Host | |
| Movie | 2009 | Now That’s What I Call Comedy | Lauren | |
| Movie | 2023 | Doctor Who: 60th Anniversary Specials | Donna Noble (archive footage) | |
| Movie | 2024 | Doctor Who at the Proms | Self - Host / Donna Noble (archive footage) | |
| Movie | 1994 | Milner | Jesson's P.A. | |
| Movie | 2017 | Perfect Roast Potatoes | Tamara | |
| Movie | 2017 | Monster Family | Baba Yaga (voice) | |
| Movie | 2015 | Michael McIntyre's Easter Night at the Coliseum | Self | |
| Movie | 2011 | Monte Carlo | Alicia Winthrop Scott | |
| Movie | 2018 | Leading Lady Parts | Boss | |
| Movie | 2014 | Catherine Tate's Nan | Nan | |
| Movie | 2022 | The Nan Movie | Nan / Joanie | |
| Movie | 2010 | The Royle Family: Behind the Sofa | Self | |
| Movie | 2024 | Joan Rivers at the BBC | Self (archive footage) | |
| Movie | 2010 | Doctor Who: Meanwhile in the TARDIS: Part 2 | Donna Noble (archive footage) | |
| Movie | 2014 | Asterix: The Mansions of the Gods | Dulcia (voice UK Dub) | |
| TV Show | 1988 | This Morning | Self - Guest | 1 |
| TV Show | 1998 | Big Train | | 7 |
| TV Show | 2006 | The One Show | Self - Guest | 1 |
| TV Show | 2001 | Friday Night with Jonathan Ross | Self - Guest | 3 |
| TV Show | 1984 | The Bill | | 1 |
| TV Show | 2005 | The Office | Nellie Bertram | 34 |
| TV Show | 2005 | The Friday Night Project | Self - Host | 1 |
| TV Show | 2005 | Bleak House | Mrs. Chadband | 1 |
| TV Show | 2005 | Top of the Pops Reloaded | Self | 1 |
| TV Show | 2004 | The Catherine Tate Show | Joannie Taylor / Lauren Cooper | 18 |
| TV Show | 2006 | The Charlotte Church Show | Self | 1 |
| TV Show | 2013 | Psychobitches | Various Roles | 11 |
| TV Show | 2002 | Wild West | Angela Phillips | 12 |
| TV Show | 2001 | Attention Scum | | 6 |
| TV Show | 2009 | The Justin Lee Collins Show | Self | 1 |
| TV Show | 2009 | Genius with Dave Gorman | | 1 |
| TV Show | 2005 | Doctor Who | Donna Noble | 13 |
| TV Show | 2003 | Spine Chillers | | 1 |
| TV Show | 2015 | Catherine Tate's Nan | Nan | 2 |
| TV Show | 1996 | Never Mind the Buzzcocks | Self - Panellist | 1 |
| TV Show | 2007 | The Graham Norton Show | Self | 7 |
| TV Show | 2014 | Alan Davies: As Yet Untitled | Self | 1 |
| TV Show | 2009 | Doctor Who Greatest Moments | Self | 1 |
| TV Show | 2022 | Hard Cell | Laura / Ros / Ange / Big Viv / Marco / Anne Marie | 6 |
| TV Show | 2010 | Channel 4's Comedy Gala | Nan | 1 |
| TV Show | 2010 | Little Crackers | Josephine | 1 |
| TV Show | 2004 | Agatha Christie's Marple | Mitzi Kosinski | 1 |
| TV Show | 2013 | 8 Out of 10 Cats Does Countdown | Self | 1 |
| TV Show | 2022 | Sunday with Laura Kuenssberg | | 1 |
| TV Show | 2014 | Duck Quacks Don't Echo | | 1 |
| TV Show | 2005 | Doctor Who Confidential | Self | 13 |
| TV Show | 1994 | Room 101 | Self | 1 |
| TV Show | 2017 | DuckTales | Magica De Spell (voice) | 9 |
| TV Show | 2016 | Michael McIntyre's Big Show | Self - Performer | 1 |
| TV Show | 2023 | Queen of Oz | Georgiana | 6 |
| TV Show | 1996 | Never Mind the Buzzcocks | Self - Host | 1 |
| TV Show | 2013 | Big School | Miss Sarah Postern | 12 |
| TV Show | 2017 | Let's Sing and Dance for Comic Relief | Self | 1 |
| TV Show | 2002 | Dawn French's Girls Who Do Comedy | | 3 |
| TV Show | 1956 | Eurovision Song Contest | Self - UK’s Spokesperson | 1 |
| TV Show | 2013 | The Last Leg | Self | 2 |
| TV Show | 2025 | Going Dutch | Katja Vanderhoff | 6 |
| TV Show | 2005 | The Friday Night Project | Self | 1 |
| TV Show | 1989 | Surgical Spirit | Girlfriend | 1 |
| TV Show | 2006 | More Dawn French's Girls Who Do: Comedy | Self | 1 |
| TV Show | 1998 | Barking | Various | 6 |
| TV Show | 2005 | Twisted Tales | Wendy Midwich | 1 |
