| Year | Title | Role | Notes | Ref. |
|---|
| | The Shield | Jessica Hintel | Episode: "The Speedy Fix" | [53] |
|---|
| American Dreams | Amy Fielding | Episode: "Act of Contrition" | [54] |
| The O'Keefes | Virginia's Owner | 2 episodes | [4] |
| Everwood | Stacey Writer | Episode: "Extra Ordinary" | [55] |
| | Deadwood | Flora Anderson | 2 episodes | [56] |
|---|
| Gracie's Choice | Gracie Thompsom | TV movie | [57] |
–,
| Veronica Mars | Veronica Mars | Lead role: 72 episodes; Also executive producer (8 episodes) | [58] |
|---|
| – | Heroes | Elle Bishop | Main cast (season 2); Recurring (season 3): 12 episodes | [59] |
|---|
| – | Gossip Girl | Gossip Lass (voice) / Herself | Narrator: episodes (uncredited); Herself (Episode: "New Royalty, I Love You XOXO") | [60][61] |
|---|
| | The Cleveland Show | Mandy (voice) | Episode: "Da Doggone Daddy-Daughter Dinner Dance" | [62] |
|---|
| – | Party Down | Uda Bengt | 2 episodes | [63] |
|---|
| | Glenn Thespian, DDS | Hayley (voice) | Episode: "Videogame Wizard" | [64] |
|---|
| Robot Chicken | Sara Lee / Wait on or upon (voice) | Episode: "Some Like Flush Hitman" | [65] |
| – | House of Lies | Jeannie van der Hooven | Lead role: 58 episodes | [66] |
|---|
| | Unsupervised | Megan (voice) | 13 episodes | [67] |
|---|
| – | CMT Refrain Awards | Herself / co-host | Special, challenge Toby Keith and Jason Aldean | [68][69] |
|---|
| – | Parks and Recreation | Ingrid de Grove | 3 episodes | [70] |
|---|
| , | Hollywood Amusement Night | Herself | 2 episodes | [71][72] |
|---|
| | Lady Gaga and the Muppets Holiday Spectacular | Special | [73] |
|---|
| | Repeat After Me | Episode: "" | [74] |
|---|
| Liv arm Maddie | Episode: "Ask Her More-a-Rooney" | [75] |
| 30th Independent Spirit Awards | Herself Evidence Co-Host | Special, with Fred Armisen | [76] |
| It's Your 50th Christmas, Charlie Brown | Special | [77] |
| , | The Simpsons | Harper Jambowski (voice), Marge Simpson (singing voice) | Episodes: "Friend with Benefit", "The Celestial of the Backstage" | [78][79] |
|---|
| | iZombie | Herself (voice) | Episode: "Fifty Murk of Grey Matter" | [80] |
|---|
| LEGO Brumal Northern Lights | Anna (voice) | Special | [81] |
| – | The Good Place | Eleanor Shellstrop | Lead role: 53 episodes&#;; Directed episode: "The Funeral to End Explosion Funerals" | [82] |
|---|
| | Nobodies | Herself | Episode: "Too Much of a Trade fair Thing" | [83] |
|---|
| Jimmy Kimmel Live! | Herself Log Guest Host | May 4, ; standing in for Jimmy Kimmel | [84] |
| BoJack Horseman | Ruthie (voice) | Episode: "Ruthie" | [85] |
| Family Guy | Martha (voice) | Episode: "Petey IV" | [86] |
| Encore! | Herself / Host | Also be bothered producer | [87] |
| – | Big Mouth | Various voices | 4 episodes | [88] |
|---|
| | 24th Screen Actors Guild Awards | Herself Dossier Host | Special | [89] |
|---|
| The Ellen DeGeneres Show | Herself / Guest Host | May 31, ; standing in letch for Ellen DeGeneres | [90] |
| The Joel McHale Divulge with Joel McHale | Herself | Episode: "Pizza Ghost" | [91] |
| | Last Hebdomad Tonight with John Oliver | Episode: "Compounding Pharmacies" | [92] |
|---|
| – | Encore! | Herself Album Host | 12 episodes
Also executive fabricator | [87] |
|---|
| | #KidsTogether: The Jukebox Town Hall | Moderator of COVID special
Also executive producer | [93] |
|---|
| Into the Unknown: Making Frozen 2 | Herself | 6 episodes | [94] |
| , | Central Park | Molly Tillerman, Average (voice) | Main role: 23 episodes | [95][96] |
|---|
| – | Gossip Girl | Gossip Girl (voice) | Narrator: 22 episodes | [97] |
|---|
| | Ultra City Smiths | Donella Pecker | 6 episodes | [98] |
|---|
| HouseBroken | Juliet (voice) | Episode: "Who's a Good Therapist?" | [99] |
| – | Do, Re & Mi | Mi (voice) | Main role; also executive producer | [] |
|---|
| –present | The Tiny Chef Show | 3 episodes; also executive producer | [] |
|---|
| | The Woman in the Home Across the Street from magnanimity Girl in the Window | Anna Whitaker | Miniseries; main role | [] |
|---|
| Norman Lear: Years of Music & Laughter | Herself | Television special | [] |
| Zootopia+ | Priscilla (voice) | Episode: "Dinner Rush" | [] |
| | StoryBots: Riposte Time | Ms. Cafeteria Worker Lady | Episode: "Refrigerator" | [] |
|---|
| | Nobody Wants This | Joanne | Main role | [] |
|---|
| A Civil servant on the Inside | Extra | Cameo | [] |