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Ana Kristina Gasteyer (; born May 4, 1967) is an American actress, comedian and singer. She was a cast member on the NBC sketch comedy series Saturday Night Live from 1996 to 2002. She has since starred in such sitcoms as ABC's Suburgatory, TBS's People of Earth, NBC's American Auto, and the film Mean Girls.
| Year | Title | Role |
| 1996 | A Small Domain | Mother |
| 1997 | Courting Courtney | Rosemary Colletti |
| 1998 | Meet the Deedles | Mel |
| 1999 | Dick | Rose Mary Woods |
| 2000 | Woman on Top | Claudia Hunter |
| What Women Want | Sue Cranston | |
| 2001 | What's the Worst That Could Happen? | Ann Marie |
| 2004 | Mean Girls | Betsy Heron |
| 2005 | Reefer Madness: The Musical | Mae Coleman |
| 2007 | The Procedure | Denise |
| 2008 | Finn on the Fly | Dr. Madsen |
| The Women | Pat | |
| 2009 | Dare | Ruth Berger |
| 2012 | Robot & Frank | Shop Lady |
| That's My Boy | Mrs. Ravensdale | |
| Fun Size | Jackie Leroux | |
| 2013 | Geography Club | Mrs. Toles |
| Peeples | Mayor Hodge | |
| Rapture-Palooza | Mrs. Lewis | |
| 2015 | Paul Blart: Mall Cop 2 | Mrs. Gundermutt |
| 2019 | Adam | Mom |
| Wine Country | Catherine | |
| 2020 | Happiest Season | Harry Levin |
| 2024 | Doin' It | Principal |
| TBA | You Deserve Each Other | Deborah Rose |
| Year | Title | Character | Notes |
| 1995 | Seinfeld | Woman | Episode: "The Soup Nazi" |
| 1996 | Hope and Gloria | Girl | Episode: "The Man Upstairs" |
| Party of Five | Emcee | Episode: "Valentine's Day" | |
| NYPD Blue | Angie | Episode: "A Death in the Family" | |
| 1996–2002 | Saturday Night Live | Various | Main role; 121 episodes |
| 1998 | Law & Order | Monica's Social Worker | Episode: "Bad Girl" |
| Just Shoot Me! | April | Episode: "What the Teddy Bear Saw" | |
| Mad About You | Yoga Woman | Episode: "Season Opener" | |
| 2000 | 3rd Rock from the Sun | Dr. Brand / Herself | 3 episodes |
| Behind the Music | Herself | Episode: "Celine Dion" | |
| Geppetto | Sra. Giovanni | TV musical | |
| 2000–2001 | TV Funhouse | Various voices | 3 episodes |
| 2001 | The West Wing | Butterball Hotline Operator (uncredited) | Episode: "The Indians in the Lobby" |
| 2002 | Frasier | Trish Haney | Episode: "Bristle While You Work" |
| 2003 | I'm with Her | Bonnie | Episode: "Alex Misses the Boat" |
| 2009 | Valentine | Mona McAllister | Episode: "Hound Dog" |
| The Electric Company | Sandy Scrambler | Episode: "Friends or Aunts" | |
| 2010 | Chuck | Dasha | Episode: "Chuck Versus the First Fight" |
| Running Wilde | Anna Lowry | Episode: "It's a Trade-Off" | |
| 2010–2014 | The Good Wife | Judge Patrice Lessner | Recurring role; 5 episodes |
| 2011 | Curb Your Enthusiasm | Jennifer | 2 episodes |
| 2011–2014 | Suburgatory | Sheila Shay | Series regular; 42 episodes |
| 2013 | Fish Hooks | Hot Cocoa | Voice, episode: "See Bea Ski" |
| 2014 | Family Guy | Speed Dater | Voice, episode: "The 2000-Year-Old Virgin" |
| 2014–2021 | The Goldbergs | Miss (Susan) Cinoman | Recurring character; 15 episodes |
| 2015 | The Mindy Project | Barb Gurglar | Episode: "Stanford" |
| Girls | Melanie Shapiro | Episode: "Iowa" | |
| Younger | Meredith Montgomery | Episode: "The Boy with the Dragon Tattoo" | |
| Difficult People | Woman at Cafe | Episode: "Even Later" | |
| Celebrity Name Game | Herself (celebrity guest) | Episode: "Ana Gasteyer vs. Billy Gardell" | |
| 2015–2016 | Dawn of the Croods | Meep | Voice, 5 episodes |
| 2015–2017 | Harvey Beaks | Tara | Voice, 9 episodes |
| 2016 | Grease Live! | Principal McGee | TV special |
| Mike Tyson Mysteries | Genevieve | Voice, episode: "The Bard's Curse" | |
| Maya & Marty | Scientist | Episode: "Will Forte, Amy Poehler, Jerry Seinfeld" | |
| The $100,000 Pyramid | Herself (celebrity guest) | Episode: "Ana Gasteyer vs. Rachel Dratch" | |
| 2016–2017 | Lady Dynamite | Karen Grisham | Recurring role; 17 episodes |
| People of Earth | Gina Morrison | Series regular | |
| 2016–2019 | The Lion Guard | Reirei | Voice, recurring role; 12 episodes |
| 2016–2025 | Match Game | Herself (celebrity guest) | 10 episodes |
| 2017 | A Christmas Story Live! | Mrs. Schwartz | Live televised performance |
| 2017–2018 | Great News | Kelly | 3 episodes |
| 2018 | Voltron: Legendary Defender | Krolia | Voice, 9 episodes |
| Full Frontal with Samantha Bee | Samantha's Mom | Episode: "Christmas on I.C.E." | |
| 2019 | Schooled | Miss (Susan) Cinoman | 5 episodes |
| The Masked Singer | Tree | Contestant; 5 episodes | |
| 2019–2021 | Mickey and the Roadster Racers | Wilhelmina the Royal Courtier | Voice, 2 episodes |
| 2019–2020 | At Home with Amy Sedaris | Darlene Cornish / Colleen | 2 episodes |
| 2020 | Prodigal Son | Tilda Carp | Episode: Death's Door |
| Year | Title | Role | Venue |
| 2000 | The Rocky Horror Show | Usherette; Columbia | Circle in the Square Theatre, Broadway |
| 2002 | Funny Girl | Fanny Brice | New Amsterdam Theatre, Broadway(Benefit Concert for The Actors' Fund) |
| 2003 | Kimberly Akimbo | Debra | New York City Center - Stage I, Off-Broadway |
| 2004 | Roulette | Virginia | John Houseman Theatre, Off-Broadway |
| 2004 | Hair | Performer | New Amsterdam Theatre, Broadway(Benefit Concert for The Actors' Fund) |
| 2005 | Wicked | Elphaba | Ford Center for the Performing Arts Oriental Theatre, Chicago |
| 2006 | The Threepenny Opera | Mrs. Peachum | Studio 54, Broadway |
| 2006–2007 | Wicked | Elphaba | Gershwin Theatre, Broadway |
| 2007 | Passion | Fosca | Chicago Shakespeare Theatre |
| 2009 | Chance & Chemistry | Performer | Minskoff Theatre, Broadway(Benefit Concert for The Actors' Fund) |
| 2009 | The Royal Family | Kitty Dean | Samuel J. Friedman Theatre, Broadway |
| 2015 | A New Brain | Mimi Schwinn | New York City Center, Encores! |
| 2018 | Annie | Miss Hannigan | Hollywood Bowl |
| 2024 | Once Upon a Mattress | Queen Aggravain | Hudson Theatre, Broadway |
| 2024–2025 | Ahmanson Theatre |
| Year | Title | Character | Episodes |
| 2015 | Going There with Ana Gasteyer | Herself | 9 |
| Year | Organisation | Category | Project | Result | Ref. |
| 2005 | Jeff Awards | Actress in a Principal Role in a Musical | Wicked | Nominated | |
| 2008 | Passion | Nominated | |||
| 2025 | Children's and Family Emmy Awards | Outstanding Voice Performer in a Preschool Program | RoboGobo | Pending |