1999–2012: Early work

Hahn's first appearance on any television program was Hickory Hideout, a local puppet show for children for then-NBC owned-and-operated station WKYC in Cleveland.^[11] (By the time of its cancellation, Hickory Hideout was airing across all of NBC's O&O stations.) While attending a festival, she was introduced to creator/producer Tim Kring. Hahn impressed Kring so favorably that he created the character of Lily Lebowski in Crossing Jordan specifically for her.^[12] The series aired from 2001 to 2007. Hahn has said of meeting Kring, "NBC and Tim Kring took a huge leap of faith in casting me. To be worked into a show that was in production and on the schedule is an amazing stroke of luck." On October 21, 2008, TV Guide reported that Hahn had signed a talent holding deal with Fox.^[13]

In 2003, Hahn appeared in a supporting role alongside Kate Hudson and Matthew McConaughey in the romantic comedy film How to Lose a Guy in 10 Days. The following year she appeared in Win a Date with Tad Hamilton!, Anchorman: The Legend of Ron Burgundy with Will Ferrell and Paul Rudd, Around the Bend, and Wake Up, Ron Burgundy: The Lost Movie. She later had more supporting roles in films, including the 2005 romantic comedy-drama A Lot like Love starring Ashton Kutcher and Amanda Peet; The Holiday (2006) with Cameron Diaz and Kate Winslet; the science fiction adventure drama The Last Mimzy (2007) alongside Rainn Wilson; Step Brothers (2008) starring Will Ferrell and John C. Reilly; Revolutionary Road (2008) starring Leonardo DiCaprio and Kate Winslet; The Goods: Live Hard, Sell Hard (2009), How Do You Know (2010) with Reese Witherspoon, Owen Wilson, Paul Rudd, and Jack Nicholson, Our Idiot Brother (2011) with Paul Rudd, and Wanderlust (2012) with Paul Rudd and Jennifer Aniston.

In 2008, she made her Broadway theatre debut in the revival of the comedy Boeing-Boeing starring opposite Mark Rylance. She starred as Gloria, an American fiancée and airline stewardess. In 2009, she was cast as Eddy in a proposed American remake of the British TV series Absolutely Fabulous. A pilot was filmed but it wasn't picked up to series.^[14][15]

On television, Hahn starred alongside Hank Azaria in the short-lived NBC comedy series Free Agents, a 2011 remake of the British series of the same name.^[16] She had recurring roles on HBO shows Hung and Girls. From 2012 to 2015, she received praise for her recurring role on the NBC comedy series Parks and Recreation as Jennifer Barkley, the campaign manager of Leslie Knope's (Amy Poehler) opponent Bobby Newport (Paul Rudd). (She had previously co-starred with Rudd in Anchorman: The Legend of Ron Burgundy, How Do You Know, Our Idiot Brother, and Wanderlust.)^[17]

She received a 2012 Critics' Choice Television Award nomination for Best Guest Performer in a Comedy Series for her performance in Parks and Recreation.^[18]

2013–2017: Film and television breakthrough

In 2013, Hahn played her first leading role, in the comedy-drama film Afternoon Delight, which was written and directed by Joey Soloway. The film premiered at the 2013 Sundance Film Festival.^[19] For her role, she was nominated for the Gotham Independent Film Award for Breakthrough Actor.^[20] Later that year, Hahn appeared opposite Jennifer Aniston (her co-star in Wanderlust) in the box-office hit We're the Millers, and co-starred alongside Ben Stiller and Kristen Wiig in The Secret Life of Walter Mitty. In 2014 she starred in the comedy film Bad Words alongside Jason Bateman, and the ensemble comedy-drama film This Is Where I Leave You alongside Jason Bateman, Tina Fey, Adam Driver, and Jane Fonda.

In 2014, Hahn was cast as Rabbi Raquel Fein in the Amazon Studios critically acclaimed dark comedy-drama Transparent, whose creator, Joey Soloway, had directed her in Afternoon Delight. She received an Emmy nomination for Outstanding Supporting Actress in a Comedy Series (2017) as well as a Screen Actors Guild Award nomination along with the cast.

In 2015, Hahn starred alongside Steve Coogan in the Showtime comedy-drama Happyish,^[21][22] but the show was canceled after a single season.^[23] That year Hahn co-starred alongside George Clooney and Hugh Laurie in the science-fiction adventure film Tomorrowland,^[24] and starred in the box-office horror hit The Visit.^[25][26] She also starred in Peter Bogdanovich's She's Funny That Way alongside Owen Wilson and Jennifer Aniston.

In 2016, Hahn appeared alongside Viggo Mortensen in the drama film Captain Fantastic,^[27][28] and starred alongside Mila Kunis, Kristen Bell, Christina Applegate, and Jada Pinkett Smith in the comedy film Bad Moms.^[29] IndieWire's Kate Erbland gave the film a B−, noting that it "boasts some good jokes but Hahn's revelatory performance is the big draw." The film went on to earn more than $183.9 million with a budget of $20 million.^[30][31] She next appeared in the Amazon comedy series I Love Dick, based on the novel by the same name by Chris Kraus and directed by Joey Soloway. It premiered on August 19, 2016.^[32][33][34]

Following the financial success from Bad Moms, STX Entertainment greenlit a sequel titled A Bad Moms Christmas. The sequel was released in November 2017 and earned more than $130 million with a budget of $28 million.^[35]

2018–present: Focus on television

In 2018, Hahn starred in the drama film Private Life, directed by Tamara Jenkins. She received critical acclaim for her performance.^[36][37][38] She also began appearing in television commercials for Chrysler.^[39]

The same year, Hahn had voice roles in two animated films from Sony Pictures Animation. First, Hahn provided the voice of character Ericka Van Helsing in the comedy Hotel Transylvania 3: Summer Vacation. Second, Hahn had a voice role in the film Spider-Man: Into the Spider-Verse, as Dr. Olivia "Liv" Octavius / Doctor Octopus.

In 2019, Hahn starred in and produced the HBO comedy miniseries Mrs. Fletcher.^[40][41] Hahn's performance as protagonist Eve Fletcher received critical praise.^[42]

In 2020, Hahn starred in the HBO drama miniseries I Know This Much Is True, based on the novel of the same name by Wally Lamb opposite Mark Ruffalo.^[43] That same year, Hahn began voicing Paige Hunter in the Apple TV+ animated musical comedy series Central Park. Apple Inc. had given a two-season order to Central Park, with each season set to consist of thirteen episodes.^[44]

In 2021, Hahn joined the Marvel Cinematic Universe by starring in the Disney+ limited series WandaVision as Agnes, a mysterious "nosy neighbor", later revealed to be Agatha Harkness.^[45] Her next miniseries The Shrink Next Door, starring Paul Rudd and Will Ferrell, premiered on Apple TV+ on November 12, 2021.^[46] She played Jo Polniaczek in The Facts of Life segment of the third edition of Live in Front of a Studio Audience on December 7, 2021.^[47] She also starred in the sequel to the 2019 mystery film Knives Out^[48] and will also star in the WandaVision spinoff focused on Harkness, Agatha: House of Harkness.^[49] When the series was first reported a month earlier, it was also stated Hahn signed an overall deal with Marvel Studios.^[50] The project was retitled Agatha: Coven of Chaos in July 2022,^[51] and later to Agatha: Darkhold Diaries in September 2023.^[52]

In June 2022, it was announced that she would star in the upcoming Hulu limited series Tiny Beautiful Things based on the bestselling book by Cheryl Strayed.^[53] During the Summer of 2022, Hahn was featured in a series of "Back to School" commercials for Amazon.^[54]

On April 7, 2023, Hulu released all eight episodes of the critically acclaimed series Tiny Beautiful Things, in which Hahn starred in the lead role of Clare. In June, she was announced to voice Honey in a film titled Fixed.^[55]

Film

Television

Theater