Filmography37 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2026 | MISCAST26Movie | — | 40 |
| 2024 | TherapussSeries | Self | 38 |
| 2023 | TIME100: The World's Most Influential PeopleMovie | Self - Performer | 37 |
| 2022 | Spring Awakening: Those You've KnownMovie | Self - Wendla | 36 |
| 2020 | The Drew Barrymore ShowSeries | Self | 34 |
| 2019 | The Kelly Clarkson ShowSeries | Self - Musical Guest | 33 |
| 2019 | A Little Late with Lilly SinghSeries | Self | 33 |
| 2019 | Same Time, Next ChristmasMovie | Olivia Anderson | 33 |
| 2018 | American IdolSeries | Self - Special Guest | 32 |
| 2017 | Carpool Karaoke: The SeriesSeries | Self | 31 |
| 2016 | ChelseaSeries | Self | 30 |
| 2015 | The Late Show with Stephen ColbertSeries | Self - Guest | 29 |
| 2015 | Scream QueensSeries | Hester Ulrich | 29 |
| 2014 | The Tonight Show Starring Jimmy FallonSeries | Self - Musical Guest | 28 |
| 2014 | Late Night with Seth MeyersSeries | Self | 28 |
| 2014 | Legends of Oz: Dorothy's ReturnMovie | Dorothy (voice) | 28 |
| 2011 | Glee: The Concert MovieMovie | Rachel Berry | 25 |
| 2011 | The Glee ProjectSeries | Self | 25 |
| 2011 | New Year's EveMovie | Elise | 25 |
| 2011 | Glee EncoreMovie | Rachel Berry | 25 |
| 2010 | Who Do You Think You Are?Series | Self | 24 |
| 2010 | ConanSeries | Self | 24 |
| 2009 | GleeSeries | Rachel Berry | 23 |
| 2009 | The Cleveland ShowSeries | — | 23 |
| 2009 | Watch What Happens Live with Andy CohenSeries | Self - Guest | 23 |
| 2009 | The Dr. Oz ShowSeries | Self | 23 |
| 2008 | Sons of AnarchySeries | Gertie | 22 |
| 2006 | Spring AwakeningMovie | Wendla Bergmann | 20 |
| 2005 | Broadway's Lost Treasures III: The Best of The Tony AwardsMovie | The Little Girl (segment "Ragtime") (archive footage) | 19 |
| 2003 | The Ellen DeGeneres ShowSeries | Self | 17 |
| 1999 | Third WatchSeries | Sammi | 13 |
| 1999 | Teen Choice AwardsSeries | Self - Presenter | 13 |
| 1998 | Creating RagtimeMovie | The Little Girl | 12 |
| 1996 | The Daily ShowSeries | Self | 10 |
| 1989 | The SimpsonsSeries | Sarah (voice) | 3 |
| 1988 | LIVE with Kelly and MarkSeries | Self - Guest | 2 |
| 1975 | People's Choice AwardsSeries | Self - Presenter | — |