Filmography36 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2026 | Holiday Ever After: A Disney World Wish Come TrueMovie | Nicole | 42 |
| 2023 | Special Forces: World's Toughest TestSeries | Self | 39 |
| 2023 | Disney 100: A Century of Dreams – A Special Edition of 20/20Movie | Self | 39 |
| 2023 | Aaron Carter: The Little Prince of PopMovie | Self | 39 |
| 2019 | Christy's Kitchen ThrowbackSeries | Herself - Host | 35 |
| 2019 | Cradles for CashMovie | Gloria | 35 |
| 2017 | Blood CircusMovie | Sherry | 33 |
| 2017 | Big Hero 6 The SeriesSeries | Trina (voice) | 33 |
| 2016 | Christmas All Over AgainMovie | Marilyn | 32 |
| 2016 | Christmas with the AndersonsMovie | Caroline Anderson | 32 |
| 2015 | The Girl in the PhotographsMovie | Britney | 31 |
| 2014 | Deadly DaycareMovie | Gabby | 30 |
| 2013 | InfectedMovie | Kelly (as Christy Carlson Romano) | 29 |
| 2012 | MyMusicSeries | The Devil | 28 |
| 2012 | LoosiesMovie | Carmen | 28 |
| 2010 | Mirrors 2Movie | Jenna McCarty | 26 |
| 2009 | HawthorneSeries | — | 25 |
| 2009 | WolvesbayneMovie | Alex Layton | 25 |
| 2007 | Taking 5Movie | — | 23 |
| 2006 | Casper's Scare SchoolMovie | Mantha (voice) | 22 |
| 2005 | Kim Possible Movie: So the DramaMovie | Kim Possible (voice) | 21 |
| 2005 | Campus ConfidentialMovie | Violet Jacobs | 21 |
| 2004 | SummerlandSeries | Gigi | 20 |
| 2004 | Walt Disney World Christmas Day ParadeMovie | Self | 20 |
| 2003 | Joan of ArcadiaSeries | Officious Hall Monitor God | 19 |
| 2003 | Lilo & Stitch: The SeriesSeries | Kim Possible (voice) | 19 |
| 2003 | Kim Possible: A Sitch in TimeMovie | Kim Possible (voice) | 19 |
| 2003 | Walt Disney World Christmas Day ParadeMovie | Self | 19 |
| 2002 | Kim PossibleSeries | Kim Possible (voice) | 18 |
| 2002 | Cadet KellyMovie | Jennifer | 18 |
| 2000 | Even StevensSeries | Ren Stevens | 16 |
| 2000 | Looking for an EchoMovie | Tina Pirelli | 16 |
| 1999 | Family GuySeries | Quagmire's One-Night-Stand (voice) | 15 |
| 1998 | Henry FoolMovie | Pearl (age 14) | 14 |
| 1998 | Movie SurfersSeries | — | 14 |
| 1996 | Everyone Says I Love YouMovie | Trick-or-Treat Child | 12 |