| 2026 | David Attenborough's 100 Years on Planet EarthMovie | Self | 56 |
| 2026 | Saturday Night Live UKSeries | Self - Cameo (uncredited) | 56 |
| 2026 | The Harry Hill ShowSeries | Self | 56 |
| 2026 | Louis Theroux: Inside the ManosphereMovie | Self | 56 |
| 2022 | Louis Theroux InterviewsSeries | Self - Presenter | 52 |
| 2019 | Louis Theroux: Surviving America’s Most Hated FamilyMovie | Himself | 49 |
| 2018 | The Great Celebrity Bake Off for Stand Up To CancerSeries | Self - Guest | 48 |
| 2018 | The Big Narstie ShowSeries | Self | 48 |
| 2017 | The Russell Howard HourSeries | Self | 47 |
| 2016 | My Scientology MovieMovie | Self | 46 |
| 2016 | Louis Theroux: SavileMovie | Self | 46 |
| 2016 | Louis Theroux: Drinking to OblivionMovie | — | 46 |
| 2015 | Hot OnesSeries | Self | 45 |
| 2014 | Chicken Shop DateSeries | Self - Guest (archive footage) | 44 |
| 2013 | Julia Zemiro's Home DeliverySeries | Self | 43 |
| 2013 | The Last LegSeries | Self | 43 |
| 2012 | Louis Theroux: Twilight of the Porn StarsMovie | Himself | 42 |
| 2011 | Louis Theroux: America's Most Hated Family in CrisisMovie | Himself - Presenter | 41 |
| 2011 | Louis Theroux: The Ultra ZionistsMovie | Self | 41 |
| 2011 | Louis Theroux: Miami Mega-JailSeries | Louis Theroux | 41 |
| 2010 | Louis Theroux: America's Medicated KidsMovie | Himself | 40 |
| 2010 | Louis Theroux: The City Addicted to Crystal MethMovie | Himself | 40 |
| 2009 | Louis Theroux: A Place for PaedophilesMovie | Himself | 39 |
| 2008 | Louis Theroux: Law and Disorder in JohannesburgMovie | Himself | 38 |
| 2008 | Louis Theroux: Law and Disorder in PhiladelphiaMovie | Himself | 38 |
| 2008 | Louis Theroux: Behind BarsMovie | Himself | 38 |
| 2007 | The Graham Norton ShowSeries | Self | 37 |
| 2007 | Louis Theroux: The Most Hated Family in AmericaMovie | Himself - Presenter | 37 |
| 2007 | Louis Theroux: Gambling in Las VegasMovie | Self | 37 |
| 2007 | Louis Theroux: Under the KnifeMovie | Himself | 37 |
| 2005 | De Wereld Draait DoorSeries | Self | 35 |
| 2003 | Louis Theroux: Louis and the NazisMovie | Himself | 33 |
| 2003 | Louis Theroux: Louis and the BrothelMovie | Himself | 33 |
| 2001 | Friday Night with Jonathan RossSeries | Self - Guest | 31 |
| 2001 | LorraineSeries | Self | 31 |
| 2000 | When Louis Met... JimmyMovie | self | 30 |
| 2000 | When Louis Met...Series | Himself | 30 |
| 1998 | Louis Theroux's Weird WeekendsSeries | — | 28 |
| 1994 | TV NationSeries | Himself | 24 |
