Filmography38 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2014 | Little House on the Prairie: A Merry Ingalls ChristmasMovie | Mary Ingalls | 52 |
| 2008 | While She Was OutMovie | Cassie (voice) (uncredited) | 46 |
| 2007 | Marco PoloSeries | Mother (voice) (uncredited) | 45 |
| 2006 | 10.5: ApocalypseSeries | Megan Hollister | 44 |
| 2006 | Crazy EightsMovie | Hospital Patient (uncredited) | 44 |
| 2002 | NBC 75th Anniversary SpecialMovie | Self | 40 |
| 2000 | Thin IceMovie | Tanya Ferguson | 38 |
| 1998 | Earthquake in New YorkMovie | Dr. Marilyn Blake | 36 |
| 1996 | E! True Hollywood StorySeries | — | 34 |
| 1994 | Burke's LawSeries | Michelle Ryder | 32 |
| 1993 | Intimate PortraitSeries | Self | 31 |
| 1992 | X-MenSeries | — | 30 |
| 1990 | Dead Men Don't DieMovie | Dulcie Niles | 28 |
| 1988 | The Suicide ClubMovie | Laura Donovan | 26 |
| 1988 | Far NorthMovie | Nurse | 26 |
| 1985 | The EqualizerSeries | Yvette Marcel | 23 |
| 1985 | The New Alfred Hitchcock PresentsSeries | Laura Donovan | 23 |
| 1984 | Murder, She WroteSeries | Eve Crystal | 22 |
| 1984 | Finder of Lost LovesSeries | Nikki Gatos | 22 |
| 1984 | Killing MachineMovie | Kukki | 22 |
| 1984 | Chattanooga Choo ChooMovie | Jennie | 22 |
| 1982 | HotelSeries | — | 20 |
| 1982 | An Innocent LoveMovie | Molly Rush | 20 |
| 1982 | Hollywood’s ChildrenMovie | Self (archive footage) | 20 |
| 1981 | Midnight OfferingsMovie | Vivian Sotherland | 19 |
| 1981 | Happy Birthday to MeMovie | Virginia Wainwright | 19 |
| 1981 | Advice to the LovelornMovie | Maureen Tyler | 19 |
| 1979 | The Survival of DanaMovie | Dana Lee | 17 |
| 1979 | The Little House YearsMovie | Mary Ingalls | 17 |
| 1977 | The Love BoatSeries | Jennifer "Chubs" Smith | 15 |
| 1977 | James at 15Movie | Lacey Stevens | 15 |
| 1976 | Battle of the Network StarsSeries | — | 14 |
| 1976 | The Loneliest RunnerMovie | Nancy Rizzi | 14 |
| 1974 | Little House on the PrairieSeries | Mary Ingalls | 12 |
| 1974 | Little House on the PrairieMovie | Mary Ingalls | 12 |
| 1969 | The Brady BunchSeries | Millicent | 7 |
| 1964 | BewitchedSeries | Girl (uncredited) | 2 |
| 1961 | The Mike Douglas ShowSeries | Self | — |