Filmography80 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2026 | The Fall and Rise of Reggie DinkinsSeries | Arthur Tobin | 37 |
| 2023 | ExtrapolationsSeries | Alpha (voice) (uncredited) | 34 |
| 2023 | Digman!Series | Sebastian Lines (voice) | 34 |
| 2023 | 100 Years of Warner Bros.Series | Self | 34 |
| 2022 | The Lost CityMovie | Abigail Fairfax | 33 |
| 2022 | Harry Potter 20th Anniversary: Return to HogwartsMovie | Self | 33 |
| 2022 | Weird: The Al Yankovic StoryMovie | 'Weird Al' Yankovic | 33 |
| 2020 | Guns AkimboMovie | Miles | 31 |
| 2019 | The Kelly Clarkson ShowSeries | Self | 30 |
| 2019 | Miracle WorkersSeries | Prince Chauncley | 30 |
| 2019 | Miracle WorkersSeries | Reverend Ezekiel Brown | 30 |
| 2018 | 2 Dope QueensSeries | Self | 29 |
| 2017 | Lost in LondonMovie | Daniel Radcliffe | 28 |
| 2016 | Now You See Me 2Movie | Walter Mabry | 27 |
| 2016 | WIRED's Autocomplete InterviewsSeries | Self - Guest | 27 |
| 2016 | ImperiumMovie | Nate Foster | 27 |
| 2016 | Swiss Army ManMovie | Manny | 27 |
| 2015 | The Late Show with Stephen ColbertSeries | Self - Guest | 26 |
| 2015 | TrainwreckMovie | The Dogwalker | 26 |
| 2015 | Hot OnesSeries | Self | 26 |
| 2015 | The GamechangersMovie | Sam Houser | 26 |
| 2015 | Victor FrankensteinMovie | Igor | 26 |
| 2014 | BoJack HorsemanSeries | Daniel Radcliffe (voice) | 25 |
| 2014 | The Tonight Show Starring Jimmy FallonSeries | Self | 25 |
| 2014 | Late Night with Seth MeyersSeries | Self | 25 |
| 2014 | Off Camera with Sam JonesSeries | Self | 25 |
| 2014 | The KumarsSeries | Self | 25 |
| 2014 | Trailblazer HonorsSeries | Self - Presenter | 25 |
| 2013 | HornsMovie | Ignatius Perrish | 24 |
| 2013 | Rick and MortySeries | Knight of the Sun (voice) | 24 |
| 2013 | The FrameSeries | Harry Potter | 24 |
| 2013 | Kill Your DarlingsMovie | Allen Ginsberg | 24 |
| 2013 | The Last LegSeries | Self | 24 |
| 2013 | What IfMovie | Wallace | 24 |
| 2012 | The Woman in BlackMovie | Arthur Kipps | 23 |
| 2012 | Good Mythical MorningSeries | Self | 23 |
| 2012 | A Young Doctor's NotebookSeries | Young Doctor | 23 |
| 2011 | Harry Potter and the Deathly Hallows: Part 2Movie | Harry Potter | 22 |
| 2011 | The Jonathan Ross ShowSeries | Self | 22 |
| 2011 | When Harry Left HogwartsMovie | Self | 22 |
| 2010 | ConanSeries | Guest | 21 |
| 2010 | Harry Potter and the Deathly Hallows: Part 1Movie | Harry Potter | 21 |
| 2010 | Fry and Laurie ReunitedMovie | Self | 21 |
| 2009 | Harry Potter and the Half-Blood PrinceMovie | Harry Potter | 20 |
| 2009 | Watch What Happens Live with Andy CohenSeries | Self - Guest | 20 |
| 2009 | Live from Studio FiveSeries | Self | 20 |
| 2007 | Harry Potter and the Order of the PhoenixMovie | Harry Potter | 18 |
| 2007 | The Graham Norton ShowSeries | Self | 18 |
| 2006 | Rachael RaySeries | — | 17 |
| 2006 | The Children's Party at the PalaceMovie | Harry Potter (Harry Potter) | 17 |
| 2005 | Harry Potter and the Goblet of FireMovie | Harry Potter | 16 |
| 2005 | Robot ChickenSeries | Thomas the Tank Engine / Mullet Kid (voice) | 16 |
| 2005 | The Colbert ReportSeries | Self - Guest | 16 |
| 2005 | ExtrasSeries | Daniel Radcliffe | 16 |
| 2004 | The Magic Touch of Harry PotterMovie | Self | 15 |
| 2004 | Who Do You Think You Are?Series | Self | 15 |
| 2004 | Holly & Stephen's Saturday ShowdownSeries | Self | 15 |
| 2004 | Harry Potter and the Prisoner of AzkabanMovie | Harry Potter | 15 |
| 2003 | The Ellen DeGeneres ShowSeries | Self | 14 |
| 2003 | QISeries | Self | 14 |
| 2002 | Ant & Dec's Saturday Night TakeawaySeries | Self | 13 |
| 2001 | Harry Potter and the Philosopher's StoneMovie | Harry Potter | 12 |
| 2001 | Friday Night with Jonathan RossSeries | Self - Guest | 12 |
| 2001 | The Tailor of PanamaMovie | Mark Pendel | 12 |
| 1999 | Teen Choice AwardsSeries | Self - Presenter | 10 |
| 1999 | The Early ShowSeries | Self - Guest | 10 |
| 1999 | RoveSeries | Self | 10 |
| 1999 | David CopperfieldSeries | Young David Copperfield | 10 |
| 1998 | TRLSeries | — | 9 |
| 1997 | The ViewSeries | Self | 8 |
| 1997 | Leute heuteSeries | Self | 8 |
| 1997 | TaffSeries | self | 8 |
| 1996 | The Daily ShowSeries | Self | 7 |
| 1994 | Inside the Actors StudioSeries | Self | 5 |
| 1992 | The Tonight Show with Jay LenoSeries | — | 3 |
| 1990 | Have I Got News for YouSeries | Self - Host | 1 |
| 1989 | The SimpsonsSeries | Diggs (voice) | — |
| 1988 | LIVE with Kelly and MarkSeries | Self - Guest | — |
| 1975 | Saturday Night LiveSeries | Self - Host | — |
| 0 | Have I Got a Bit More News for YouSeries | Self - Presenter | — |