Filmography36 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2023 | That '90s ShowSeries | Donna Pinciotti-Forman | 43 |
| 2017 | The HeroMovie | Charlotte Dylan | 37 |
| 2016 | The Girl on the TrainMovie | Cathy | 36 |
| 2015 | Dana White: Lookin' for a FightSeries | — | 35 |
| 2014 | Late Night with Seth MeyersSeries | Self | 34 |
| 2013 | Orange Is the New BlackSeries | Alex Vause | 33 |
| 2013 | Beat Bobby FlaySeries | Self | 33 |
| 2012 | Lay the FavoriteMovie | Holly | 32 |
| 2012 | FOX 25th Anniversary SpecialMovie | Self | 32 |
| 2012 | Men at WorkSeries | Hannah | 32 |
| 2012 | The KitchenMovie | Jennifer | 32 |
| 2009 | CastleSeries | Natalie Rhodes | 29 |
| 2009 | Celebrity Ghost StoriesSeries | Self | 29 |
| 2008 | In Plain SightSeries | Lauren Hefferman | 28 |
| 2007 | October RoadSeries | Hannah Daniels | 27 |
| 2007 | The Chosen OneMovie | Rachel Cruz (voice) | 27 |
| 2006 | KarlaMovie | Karla Homolka | 26 |
| 2006 | Come Early MorningMovie | Kim | 26 |
| 2005 | MediumSeries | Kira Hudack | 25 |
| 2005 | How I Met Your MotherSeries | Karen | 25 |
| 2005 | The Reichen ShowSeries | Self - Guest | 25 |
| 2005 | E! Hollywood Hold'emSeries | — | 25 |
| 2004 | HouseSeries | Frankie | 24 |
| 2004 | Lightning BugMovie | Angevin Duvet | 24 |
| 2003 | The Ellen DeGeneres ShowSeries | Self | 23 |
| 2003 | Punk'dSeries | Self | 23 |
| 2002 | SlackersMovie | Reanna | 22 |
| 2001 | Southlander: Diary of a Desperate MusicianMovie | Seven Equals Five | 21 |
| 1999 | Teen Choice AwardsSeries | Self | 19 |
| 1998 | That '70s ShowSeries | Donna Pinciotti | 18 |
| 1997 | King of the HillSeries | April (voice) | 17 |
| 1997 | The ViewSeries | Self | 17 |
| 1996 | E! True Hollywood StorySeries | Self | 16 |
| 1993 | RawSeries | — | 13 |
| 1993 | Late Night with Conan O'BrienSeries | Self - Guest | 13 |
| 1981 | Entertainment TonightSeries | Self | 1 |