| Movie | 2021 | You, Me and the Christmas Trees | Olivia Arden | |
| Movie | 2002 | Jane White Is Sick & Twisted | Tiffany | |
| Movie | 2007 | Hack! | Emily Longley | |
| Movie | 2004 | Quiet Kill | Pet Shop Girl | |
| Movie | 1992 | Sidekicks | Lauren | |
| Movie | 2022 | The Winter Palace | Emily Miller | |
| Movie | 2023 | Swing Into Romance | Christine Sims | |
| Movie | 2018 | LEGO DC Super Hero Girls: Super-Villain High | Frost | |
| Movie | 2019 | Bongee Bear and the Kingdom of Rhythm | Brittany (voice) | |
| Movie | 2010 | Superman/Shazam!: The Return of Black Adam | Sally (voice) | |
| Movie | 2008 | Heatstroke | Caroline | |
| Movie | 1990 | Camp Cucamonga | Lindsey Scott | |
| Movie | 2004 | Raising Genius | Lacy Baldwin | |
| Movie | 2006 | Inspector Mom | Maddie Monroe | |
| Movie | 2002 | Reality School | Sexy Sally | |
| Movie | 2012 | Love at the Christmas Table | Kat | |
| Movie | 2007 | Inspector Mom: Kidnapped in Ten Easy Steps | Maddie Monroe | |
| Movie | 2023 | A Royal Date for Christmas | Bella Sparks | |
| Movie | 2013 | Tasmanian Devils | Alex | |
| Movie | 2021 | The Palindromists | Self | |
| Movie | 2016 | DC Super Hero Girls: Hero of the Year | Frost (voice) | |
| Movie | 2012 | Flatland²: Sphereland | Aero (voice) | |
| Movie | 2005 | Path of Destruction | Katherine Stern | |
| Movie | 2018 | DC Super Hero Girls: Legends of Atlantis | Frost (voice) | |
| Movie | 2013 | The Wrong Woman | Ellen | |
| Movie | 1996 | Justice for Annie | Annie Mills Carman | |
| Movie | 2009 | 21 and a Wake-Up | Jenny Valentine | |
| Movie | 2022 | Christmas at the Drive-In | Sadie Walker | |
| Movie | 2008 | Naked Movie | Self | |
| Movie | 2001 | Good Neighbor | Molly Wright | |
| Movie | 2014 | Where Hope Grows | Susan Malcolm | |
| Movie | 2015 | Perfect Match | Jessica | |
| Movie | 2002 | The Year That Trembled | Pam Hatch | |
| Movie | 2015 | Crown for Christmas | Allie Foster | |
| Movie | 2016 | Wedding Bells | Molly Quinn | |
| Movie | 2024 | A Cinderella Christmas Ball | Chelsea Jones | |
| Movie | 2016 | My Christmas Dream | Christina | |
| Movie | 1994 | Moment of Truth: Cradle of Conspiracy | Kristin Guthrie | |
| Movie | 2017 | Mommy I Didn't Do It | Ellen Plainview | |
| Movie | 2017 | The Jetsons & WWE: Robo-WrestleMania | Judy Jetson (voice) | |
| Movie | 2017 | Campfire Kiss | Dana | |
| Movie | 2017 | Coming Home for Christmas | Lizzie Richfield | |
| Movie | 2017 | DC Super Hero Girls: Intergalactic Games | Frost (voice) | |
| Movie | 2010 | Scooby-Doo! Abracadabra-Doo | Madelyn Dinkley (voice) | |
| Movie | 2018 | Very, Very, Valentine | Helen | |
| Movie | 2012 | Mancation | Rebecca | |
| Movie | 2018 | Love in Design | Hannah McElroy | |
| Movie | 2018 | Christmas at Grand Valley | Kelly | |
| Movie | 2001 | Speechless... | Dana Woodman | |
| Movie | 2019 | Love and Sunshine | Ally Craig | |
| Movie | 2019 | Christmas at Dollywood | Rachel Lewis | |
| Movie | 2019 | MatchMaker Mysteries: A Killer Engagement | Angie Dove | |
| Movie | 2010 | DC Showcase Original Shorts Collection | Sally (segment "The Return of Black Adam") (voice) | |
| Movie | 2020 | MatchMaker Mysteries: A Fatal Romance | Angie Dove | |
| Movie | 2020 | Christmas She Wrote | Kaleigh | |
| Movie | 2020 | 2020 Hallmark Movies & Mysteries Preview Special | Self | |
| Movie | 2020 | The Library That Dolly Built | Narrator | |
| Movie | 2002 | Sex and the Teenage Mind | Debbie | |
| Movie | 2021 | MatchMaker Mysteries: The Art of the Kill | Angie Dove | |
| Movie | 2001 | XCU: Extreme Close Up | Sarah | |
| Movie | 2009 | Girls on the Go: First Date | Katerina Metropoulos | |
| Movie | 2025 | Grounded in Love | Annie | |
| Movie | 2004 | Intermission | Sleepwalker | |
| Movie | 2025 | Have We Met This Christmas? | Katie Stone | |
| Movie | N/A | Inspector Mom - Mother Goose Murder | Maddie Monroe | |
| TV Show | 2005 | How I Met Your Mother | Trudy | 2 |
| TV Show | 2007 | The Big Bang Theory | Abby | 1 |
| TV Show | 1999 | The West Wing | Elsie Snuffin | 8 |
| TV Show | 1985 | The Twilight Zone | Nola (Age 10) (segment "Her Pilgrim Soul") | 1 |
| TV Show | 1997 | King of the Hill | Misty (voice) | 1 |
| TV Show | 1996 | The Jamie Foxx Show | | 1 |
| TV Show | 2002 | Kim Possible | | 1 |
| TV Show | 1997 | 101 Dalmatians: The Series | | 1 |
| TV Show | 2000 | The Weekenders | | 2 |
| TV Show | 1994 | Babylon 5 | Aria Tensus | 1 |
| TV Show | 1988 | The Wonder Years | Gwendolyn 'Winnie' Cooper | 115 |
| TV Show | 2003 | NCIS | Erin Kendall | 1 |
| TV Show | 2003 | Lilo & Stitch: The Series | (voice) | 1 |
| TV Show | 2008 | Brink | | 36 |
| TV Show | 2010 | Young Justice | M'gaan M'orzz / Megan Morse / Miss Martian (voice) | 98 |
| TV Show | 2000 | Static Shock | Frieda (voice) | 15 |
| TV Show | 2001 | Justice League | Sapphire Stagg (voice) | 1 |
| TV Show | 2001 | Justice League | Sapphire Stagg / Bystander (voice) | 1 |
| TV Show | 2000 | Strong Medicine | Natalie Pascal | 1 |
| TV Show | 2011 | Impractical Jokers | Self | 2 |
| TV Show | 2004 | Game Over | Elsa (voice) | 1 |
| TV Show | 2008 | Random! Cartoons | Katerina Metropoulos (voice) | 1 |
| TV Show | 2005 | Dancing with the Stars | Self - Contestant | 8 |
| TV Show | 1989 | The Super Mario Bros. Super Show! | | 1 |
| TV Show | 2015 | Project Mc² | The Quail | 15 |
| TV Show | 2014 | The Tonight Show Starring Jimmy Fallon | Self | 1 |
| TV Show | 2021 | Home Economics | Allison | 2 |
| TV Show | 2002 | Cyberchase | Wanda (voice) | 1 |
| TV Show | 2010 | Young Justice | Tuppence Terror / Megan Wheeler (voice) | 1 |
| TV Show | 2010 | Young Justice | Back-up Singer (voice) | 1 |
| TV Show | 2010 | Young Justice | Marie Logan / Megan Wheeler (voice) | 2 |
| TV Show | 2010 | Young Justice | Angel O'Day (voice) | 1 |
| TV Show | 2010 | Young Justice | Moira Malone (voice) | 1 |
| TV Show | 2016 | Milo Murphy's Law | Veronica (voice) | 1 |
| TV Show | 1997 | King of the Hill | Sharona (voice) | 1 |
| TV Show | 2021 | Home Town: Ben's Workshop | Danica McKellar | 1 |
| TV Show | 2003 | Eve | Claudia | 1 |
| TV Show | 1997 | Working | Jolie | 2 |
| TV Show | 1990 | Captain Planet and the Planeteers | Lisa | 1 |
| TV Show | 1985 | The Twilight Zone | Deidre Dobbs (segment "Shelter Skelter") | 1 |
| TV Show | 2010 | G.I. Joe: Renegades | Sister Leia/Woman | 1 |
| TV Show | 2001 | The Division | Wendy | 1 |
| TV Show | 2000 | Even Stevens | Sandrine | 1 |
| TV Show | 1999 | Futurama | Dancia McKellar's Head (voice) | 1 |
| TV Show | 2005 | Dancing with the Stars | Self - Audience Member | 1 |
| TV Show | 2008 | The Secret Life of the American Teenager | Danica McKellar | 1 |
| TV Show | 2008 | Free Radio | Self | 1 |
