| Year | Title | Role | Notes |
| 2002 | Titus | Charlie | Episode "Errrr" |
| 2002 | Buffy the Vampire Slayer | Cheryl | Episode: "Him" |
| 2002–2006 | Gilmore Girls | Girl / Juliet | 5 episodes |
| 2006 | Heroes | Car Rental Girl | Episode: "Chapter Three: 'One Giant Leap |
| 2007 | The Minister of Divine | Sally | Episode: "Pilot" |
| 2007 | Raines | Tammy | Episode: "Reconstructing Alice" |
| 2008 | Pushing Daisies | Jeanine | Episode: "Dummy" |
| 2008; 2017 | The Big Bang Theory | Ramona Nowitzki | 3 episodes |
| 2008 | Criminal Minds | Vanessa Holden | Episode: "52 Pickup" |
| 2009 | Bones | Mandy Summers | Episode: "The Bond in the Boot" |
| 2009 | Three Rivers | Beth | Episode: "The Kindness of Strangers" |
| 2009 | Nip/Tuck | McKenzie | Episode: "Willow Banks" |
| 2010 | House | Sarah | Episode: "Lockdown" |
| 2010 | Drop Dead Diva | Marjorie Little | Episode: "Begin Again" |
| 2011 | $#*! My Dad Says | Laura Griffin | Episode: "Who's Your Daddy?" |
| 2011 | United States of Tara | Daisy | Episode: "Dr. Hatteras' Miracle Elixir" |
| 2011 | Traffic Light | Amy | Episode: "Credit Balance" |
| 2011 | Happy Endings | Angie | Episode: "The Code War" |
| 2011 | Enlightened | Harper | 5 episodes |
| 2012 | Garfunkel and Oates | Garfunkel | Episode: "Pilot" |
| 2012 | Sketchy | Female Announcer | Episode: "Junk Pump" |
| 2012 | Staged | Ryda | Episode: "Flo Rida" |
| 2013 | King of the Nerds | Herself | Episode: "Nerdy Dancing" |
| 2013 | House of Lies: Flight Club | Melanie | Episode: "Rom Com" |
| 2013; 2015 | Adventure Time | Island Lady, Ice Cream, John | Voice, 2 episodes |
| 2013 | New Girl | Kylie | Episode: "The Captain" |
| 2013–2014 | Super Fun Night | Hayley | 3 episodes |
| 2013–2014 | Monsters vs. Aliens | Susan Murphy / Ginormica, various voices | Voice, main role |
| 2014 | Garfunkel and Oates | Garfunkel | 8 episodes; also creator, executive producer, writer |
| 2014–2017 | @midnight | Herself | 5 episodes |
| 2015 | The Muppets | Becky | 4 episodes |
| 2015 | Fresh Off the Boat | Arielle | Episode: "Family Business Trip" |
| 2015 | Brooklyn Nine-Nine | Agneta Carlsson | Episode: "The Swedes" |
| 2015–2018 | Another Period | Beatrice Bellacourt | 32 episodes; also creator, executive producer, writer |
| 2016 | House of Lies | Joy | Episode: "One-Eighty" |
| 2016 | Ask the StoryBots | Oxygen Molecule | Episode: "Why Is the Sky Blue?" |
| 2017 | Difficult People | Hostess | Episode: "The Silkwood" |
| 2018 | Modern Family | Poet | Episode: "In Your Head" |
| 2018 | Take My Wife | Clerk | Episode |
| 2018–2020 | Big Hero 6: The Series | Wendy Wower | Voice, 4 episodes |
| 2018 | Kidding | Shaina | Episode: "Every Pain Needs a Name" |
| 2019 | Crazy Ex-Girlfriend | Hungry Cat | Episode: "I Need Some Balance" |
| 2020–2022 | Duncanville | Kimberly Harris | Voice |
| 2020 | The Neighborhood | Kristen | Episode: "Welcome to the Jump" |
| 2020 | Big City Greens | Gina | Voice, episode: "The Gifted" |
| 2020 | Law & Order: Special Victims Unit | Irena Nowak | Episode: "Ballad of Dwight and Irena" |
| 2021 | DuckTales | May | Voice, episode: "The Last Adventure!" |
| 2021 | United States of Al | Chloe | Episode: "Car/Motar" |
| 2021 | Just Beyond | Bonnie | Episode: "Parents Are from Mars, Kids Are from Venus" |
