| The Gabby Petito Story | 2022 | Director | Director |
| i, WITNESS Video | 2006 | Director | Director |
| The Chronology of Water | 2025 | Actress | Claudia |
| Mayfair Witches | 2025 | Actress | Gifford Mayfair |
| The Midway Point | 2024 | Actress | Cristina |
| The Gabby Petito Story | 2022 | Actress | Nichole Schmidt |
| Overleaper | 2022 | Actress | Audrey Beach |
| 13 Minutes | 2021 | Actress | Jess |
| The Walking Dead | 2019–2020 | Actress | Mary |
| Above Suspicion | 2019 | Actress | Jolene |
| Kindred Spirits | 2019 | Actress | Chloe |
| The Last Black Man in San Francisco | 2019 | Actress | Becca |
| Affairs of State | 2018 | Actress | Callie |
| The Etruscan Smile | 2018 | Actress | Emily |
| The Competition | 2018 | Actress | Lauren |
| Colony | 2016 | Actress | Morgan |
| World Gone Water Short | 2015 | Actress | Narrator (voice) |
| Petunia | 2012 | Actress | Vivian Petunia |
| Pregnancy Pact | 2010 | Actress | Sidney Bloom |
| Deadline | 2009 | Actress | Lucy |
| Winter of Frozen Dreams | 2009 | Actress | Barbara Hoffman |
| Train | 2008 | Actress | Alex |
| Dark Corners | 2006 | Actress | Susan Hamilton |
| My Life as a Teenage Robot: Escape from Cluster Prime | 2005 | Actress | Vega (voice) |
| Slingshot | 2005 | Actress | April |
| My Life as a Teenage Robot | 2005 | Actress | Vega (voice) |
| The Dot | 2004 | Actress | Narrator (voice) |
| Silver City | 2004 | Actress | Karen Cross |
| Limp Bizkit: Eat You Alive | 2003 | Actress | Woman |
| Homeless to Harvard: The Liz Murray Story | 2003 | Actress | Liz Murray |
| Night Visions | 2002 | Actress | Susan Thornhill (segment "The Maze") |
| Shadow Realm | 2002 | Actress | Susan Thornhill |
| Moby: We Are All Made of Stars | 2002 | Actress | Thora Birch |
| Ghost World | 2001 | Actress | Enid |
| The Hole | 2001 | Actress | Liz |
| Dungeons & Dragons | 2000 | Actress | Empress Savina |
| The Smokers | 2000 | Actress | Lincoln Roth |
| Anywhere But Here | 1999 | Actress | Mary (uncredited) |
| American Beauty | 1999 | Actress | Jane Burnham |
| Night Ride Home | 1999 | Actress | Clea |
| Touched by an Angel | 1997 | Actress | Erin |
| Promised Land | 1997 | Actress | Allison Rhodes |
| Alaska | 1996 | Actress | Jessie Barnes |
| Blackbird Hall TV Movie | 1995 | Actress | |
| Now and Then | 1995 | Actress | Teeny |
| The Outer Limits | 1995 | Actress | Aggie Travers |
| Clear and Present Danger | 1994 | Actress | Sally Ryan |
| Monkey Trouble | 1994 | Actress | Eva |
| Monty | 1994 | Actress | Ann Sherman |
| Hocus Pocus | 1993 | Actress | Dani Dennison |
| The Itsy Bitsy Spider | 1992 | Actress | Little Girl (voice) |
| Patriot Games | 1992 | Actress | Sally Ryan |
| All I Want for Christmas | 1991 | Actress | Hallie O'Fallon |
| Paradise | 1991 | Actress | Billie Pike |
| Parenthood | 1990–1991 | Actress | Taylor Buckman (as Thora) |
| Amen | 1991 | Actress | Brittany (as Thora) |
| Married People | 1990 | Actress | Emily (as Thora) |
| Dark Avenger | 1990 | Actress | Susie Donovan (as Thora) |
| Doogie Howser, M.D. | 1989 | Actress | Megan (as Thora) |
| Day by Day | 1988–1989 | Actress | Molly Farrell (as Thora) |
| Purple People Eater | 1988 | Actress | Molly Johnson (as Thora) |
| The Gabby Petito Story | 2022 | Producer | co-executive producer |
| The Competition | 2018 | Producer | producer |
| Petunia | 2012 | Producer | producer |
| Mickey's Magical Christmas: Snowed in at the House of Mouse | 2001 | Soundtrack | performer: "The Best Christmas of All" |
| Day by Day | 1988–1989 | Soundtrack | performer: "My Generation" |
| Celebrity Chatter and Things that Matter with Elijah Podcast Series | 2023 | Self | Self - Guest |
| Entertainment Tonight | 2000–2022 | Self | Self |
| Paltrocast with Darren Paltrowitz | 2022 | Self | Self |
| Sci-Fi Talk | 2022 | Self | Self |
| Dead Talk Live | 2022 | Self | Self - Guest |
| Mena Suvari Book Signing & Interview: The Great Peace Video | 2021 | Self | Self |
| In Search of the Sanderson Sisters: A Hocus Pocus Hulaween Takeover | 2020 | Self | Dani |
| Mornings | 2020 | Self | Self |
| WTF with Marc Maron | 2020 | Self | Self - Guest |
| Talking Dead | 2019–2020 | Self | Self |
| KTLA Morning News | 2019 | Self | Self |
| The Last Black Man In San Francisco: Red Carpet Short | 2019 | Self | Self |
| The Hocus Pocus 25th Anniversary Halloween Bash | 2018 | Self | Self |
| 25th Annivesary: Hocus Pocus - Opening Night at the El Captan Theatre, Hollywood Video | 2018 | Self | Self |
| NECN Morning TV Series | 2018 | Self | Self |
| 'Hocus Pocus' 25th Anniversary Panel at Midsummer | 2018 | Self | Self (uncredited) |
| Rama's Screen TV Series | 2018 | Self | Self |
| The Night Time Show | 2018 | Self | Self - Guest |
| 7th AACTA Awards TV Special | 2017 | Self | Self |
| A Great Big Story: Then & Now with Thora Birch TV Movie | 2017 | Self | Self |
| Art as Dialogue | 2017 | Self | Self |
| CU@USC TV Series | 2017 | Self | Self |
| 'Hocus Pocus' 20th Anniversary Video | 2013 | Self | Self (uncredited) |
| Cinerama Dome's 50th Anniversary Celebration Video | 2013 | Self | Self |
| Petunia LA Premiere at OUTFEST 2012 TV Special | 2012 | Self | Self |
| Tom Green's House Tonight | 2006 | Self | Self |
| Headline News | 2006 | Self | Self (uncredited) |
| 50 Cutest Child Stars: All Grown Up | 2005 | Self | Self |
| The Girls Next Door | 2005 | Self | Self (uncredited) |
| Punk'd | 2005 | Self | Self |
| Hollywood Greats | 2005 | Self | Self |
| The 55th Annual Primetime Emmy Awards | 2003 | Self | Self - Nominee |
| The John Walsh Show | 2003 | Self | Self - Guest |
| Jimmy Kimmel Live! | 2003 | Self | Self - Guest |
| The 2003 IFP Independent Spirit Awards | 2003 | Self | Self (uncredited) |
| Making of 'Ghost World' | 2002 | Self | Self |
| Gala Paramount Pictures Celebrates 90th Anniversary with 90 Stars for 90 Years | 2002 | Self | Self |
| The 2002 IFP/West Independent Spirit Awards | 2002 | Self | Self - Audience Member |
| Playboy: Inside the Playboy Mansion | 2002 | Self | Self |
| The 59th Annual Golden Globe Awards | 2002 | Self | Self - Nominee |
| Playboy Exposed: Playboy Mansion Parties Uncensored | 2001 | Self | Self |
| Banzai | 2001 | Self | Self |
| The Big Show | 2001 | Self | Self |
| Late Show with David Letterman | 2001 | Self | Self - Guest |
| Politically Incorrect | 2001 | Self | Self |
| The Late Late Show with Craig Kilborn | 2000–2001 | Self | Self - Guest |
| Live Lunch TV Series | 2001 | Self | Self - Interviewee |
| 7th Annual Screen Actors Guild Awards | 2001 | Self | Self - Presenter (uncredited) |
| MTV Europe Music Awards Stockholm | 2000 | Self | Self - Presenter (uncredited) |
| American Beauty: Look Closer... | 2000 | Self | Self - Jane Burnham |
| 2000 Blockbuster Entertainment Awards | 2000 | Self | Self |
| The 72nd Annual Academy Awards | 2000 | Self | Self - Presenter |
| TFI Friday | 2000 | Self | Self |
| Brit Awards 2000 | 2000 | Self | Self - Presenter |
| The Martin Short Show | 1999 | Self | Self - Guest |
| Donny & Marie | 1999 | Self | Self |
| The Tonight Show with Jay Leno | 1992–1999 | Self | Self - Guest |
| 3rd Annual Screen Actors Guild Awards | 1997 | Self | Self |
| The Rosie O'Donnell Show | 1996 | Self | Self - Guest |
| Late Night with Conan O'Brien | 1996 | Self | Self - Guest |
| Movie Magic | 1994 | Self | Self |
| Hocus Pocus: Begin the Magic | 1994 | Self | Self |
| Wogan | 1991 | Self | Self |
| The Chuck Woolery Show | 1991 | Self | Self |
| Paradise : VHS Screener Short | 1991 | Self | Self |
| Entertainment Weekly TV Series | 2022 | Archive Footage | Dani (archive footage) |
| Entertainment Tonight | 2022 | Archive Footage | Self (archive footage) |
| The Walking Dead | 2020 | Archive Footage | Gamma (archive footage, uncredited) |
| The BRITs at 40 | 2020 | Archive Footage | Self (archive footage, uncredited) |
| Six Sides of Katharine Hepburn | 2018 | Archive Footage | Self (archive footage) |
| TruInside | 2016 | Archive Footage | Self (archive footage) |
| 1st AACTA Awards | 2012 | Archive Footage | Sally Ryan (archive footage) |
| Forbes 20 Under 25: Young, Rich and Famous | 2007 | Archive Footage | Enid (archive footage, uncredited) |
| 20 to 1 | 2007 | Archive Footage | Self - Actress (archive footage, uncredited) |
| Video on Trial | 2006 | Archive Footage | Self (archive footage) |
| Limp Bizkit: Greatest Videoz | 2005 | Archive Footage | Thora Birch (archive footage) |
| The Hole: Deleted Scenes Video | 2004 | Archive Footage | Liz (archive footage) |
| Celebrities Uncensored | 2004 | Archive Footage | Self (archive footage, uncredited) |
| The Making of 'Dungeons and Dragons' | 2001 | Archive Footage | Empress Savina (archive footage, uncredited) |
| The Secret World of Spying | 1992 | Archive Footage | Sally Ryan (archive footage) |