| Year | Title | Role | Notes |
| 1996 | Pacific Blue | Nikki | Episode: "Wheels of Fire" |
| Home Improvement | Lisa Burton | Episode: "No Place Like Home" |
| 1997 | Just Shoot Me! | Nikki | Episode: "Secretary's Day" |
| Fired Up | Lana | Episode: "The Rules" |
| The Big Easy | Janine Rebbenack | Main role (season 2) |
| 1998 | Astoria | | TV pilot |
| Something So Right | Tina | Episode: "Something About a Double Standard" |
| Early Edition | Emily Harrigan | Episode: "Lt. Hobson, U.S.N." |
| 1999 | Sons of Thunder | Nancy Jones | Episode: "Daddy's Girl" |
| 2000 | Grosse Pointe | Herself | Episode: "Mommy Dearest" |
| 1999–2001 | Popular | Brooke McQueen | Main roleNominated—Teen Choice Award for Television Choice ActressNominated—Young Hollywood Award for Exciting New Face – Female |
| 2002–2003 | ER | Erin Harkins | Recurring role (season 9) |
| 2003–2004 | Line of Fire | Paige Van Doren | Main role |
| 2004 | Capital City | Paige Armstrong | TV pilot |
| Nip/Tuck | Naomi Gaines | Episode: "Naomi Gaines" |
| 2005 | Hitched | Emily | TV pilot |
| 2005–2007 | Crossing Jordan | Det. Tallulah "Lu" Simmons | Main role (seasons 5–6) |
| 2007 | CSI: Miami | Beth Selby/Cayla Selby/Ashley Whitford | Episode: "Triple Threat" |
| Entourage | Laurie | Episode: "Gotcha" |
| Atlanta | Jessica | TV pilot |
| 2009 | Kings | Katrina Ghent | Recurring role |
| 2009–2010, 2015 | The League | Meegan Eckhart | Recurring role |
| 2012 | GCB | Amanda Vaughn | Main role |
| 2014 | The Following | Jana Murphy | 2 episodes |
| 2014–2015 | About a Boy | Dakota | Recurring role |
| 2015 | The Odd Couple | Casey | Recurring role |
| Salem Rogers: Model of the Year 1998 | Salem Rogers | Main role |
| 2016–2017 | Rhett & Link's Buddy System | Aimee Brells | Recurring (season 1); guest (season 2) |
| 2016–2020 | American Housewife | Viv | Recurring role |
| 2017–2018 | Nobodies | Sam | 12 episodes |
| 2020 | Home Movie: The Princess Bride | Princess Buttercup | Episode: "Chapter Five: Life Is Pain" |
| 2021 | Jupiter's Legacy | Grace Sampson | Main role |
| What If...? | Christine Everhart (voice) | Episodes: "What If... Doctor Strange Lost His Heart Instead of His Hands?" & What If... Killmonger Rescued Tony Stark?" |
| Love Life | Becca Evans | Recurring role (season 2) |
| 2022 | Robot Chicken | Giuliana Rancic / Millie Tabootie (voice) | Episode: "May Cause Indecision... Or Not" |
| God's Favorite Idiot | Satan | Main role |
| 2024 | Palm Royale | Dinah Donahue | Main role |
| 2025 | The White Lotus | Kate | Main role (season 3) |
