| Year | Title | Role | Other notes |
| 2000 | City Guys | Cheerleader | Episode: "Shock Treatment" |
| Spin City | Bachelorette | Episode: "Blind Faith" |
| 2001 | Boston Public | Laura | Episode: "Chapter Eleven" |
| Off Centre | Angelica | Episode: "A Cute Triangle" |
| Maybe It's Me | Rosa | Episode: "The Exchange-Student Episode" |
| 18 Wheels of Justice | Christina | Episode: "Old Wives' Tale " |
| 2001–2002 | Alias | Jenny | 7 episodes |
| 2002 | Class of '06 | Megan "Meg" | Unsold NBC pilot |
| My Adventures in Television | TV Diva | Episode: "The Chinese Baby" |
| 2003 | Frasier | Reservationist | Episode: "Door Jam" |
| Dawson's Creek | Sadia Shaw / Mystery Girl | Episodes: "Catch-22", "Sex and Violence", and "All the Right Moves" |
| ER | Tara King | Episode: "The Greater Good" |
| 2004 | Century City | Ms. Morris | Episode: "Sweet Child of Mine" |
| 2004, 2007 | Reba | KateBridget | Episode: "To Tell You the Truth"Episode: "Cheyenne's Rival" |
| 2005 | Plan B | Bronwyn | Unsold CMT pilot |
| Supernatural | Constance Welch /The Woman in White | Episode: "Pilot" |
| The Drop | Herself | Episode: "2.49" |
| 2005–2009 | The L Word | Carmen de la Pica Morales | 26 episodes |
| 2006 | Teachers | Tina Torres | Main role |
| Sleeper Cell | Farrah | Episodes: "Faith" and "Torture" |
| 2007 | The Sopranos | Sonya Aragon | Episode: "Kennedy and Heidi" |
| 2007–2009 | Life | Dani Reese | Main character, 32 episodes |
| 2010 | Psych | Ruby | Episode: "Thrill Seekers and Hell Raisers" |
| 2011–2012 | Fairly Legal | Kate Reed | Lead character, 23 episodes |
| 2011 | Young Justice | Killer Frost /Crystal Frost (voice) | Episode: "Terrors" |
| 2012–2013, 2018 | Chicago Fire | Renee Royce | 9 episodes |
| 2013–2016 | Person of Interest | Sameen Shaw | Recurring role (season 2); main role (seasons 3–5) |
| 2015 | Ray Donovan | Hasmig | Episode: "One Night in Yerevan" |
| 2016 | Pitch | Natalie Luongo | Episodes: "Unstoppable Forces & Immovable Objects" and "Scratched" |
| Drew | Nancy Drew | Unsold CBS pilot |
| 2017 | Michael Bolton's Big, Sexy Valentine's Day Special | Carmela | Netflix variety special |
| 2018 | Reverie | Mara Kint | Main role, 10 episodes |
| Halfway There | Carrie Claussen | Television film |
| Hell's Kitchen | Herself | Blue guest diner; Episode: "Fish Out of Water" |
| 2018–2019 | The Rookie | Jessica Russo | Recurring role, 7 episodes |
| 2019 | Heartstrings | Lucy Jane | Episode: "Cracker Jack" |
| City on a Hill | Rachel Behnam | Recurring role |
| 2021–2023 | Sex/Life | Billie Connelly | Main role |
| 2025 | Paradise | Dr. Gabriela Torabi | Main role |
