Alexandra Daddario

About Alexandra Daddario

Alexandra Anna Daddario is an American actress, producer, activist, and influencer.

Daddario has said she decided to become an actress at the age of 11. She attended Marymount Manhattan College before leaving to pursue acting full-time. She has spent years studying the Meisner acting technique.

Daddario made her television debut at 15, playing Laurie Lewis in the ABC daytime soap opera All My Children. Her first major role was Annabeth Chase in the fantasy adventure film Percy Jackson & the Olympians: The Lightning Thief (2010). She had a recurring role as Kate Moreau, Neal Caffrey's love interest, in the USA Network series White Collar. In 2011, she appeared in the comedy Hall Pass and had a recurring role as Rachel in the NBC series Parenthood. In 2012, she starred in the music video for Imagine Dragons' "Radioactive", which surpassed 1 billion views on YouTube. She also played Ruby Taft in an episode of the FX sitcom It's Always Sunny in Philadelphia.

She played the lead, Heather Miller, in the slasher film Texas Chainsaw 3D (2013). In August 2013, she reprised her role as Annabeth Chase in Percy Jackson: Sea of Monsters. She then appeared in the romantic horror comedy Burying the Ex, which premiered out of competition at the Venice Film Festival in 2014. In January 2013, she was cast in the first season of the HBO anthology series True Detective, appearing in a four-episode arc as Lisa Tragnetti, a court reporter having an extramarital affair with one of the main characters. The following year, she played Blake Gaines in the disaster film San Andreas and made a cameo in the pilot of the Fox series The Last Man on Earth. That same year, she portrayed a fictionalized version of designer Natacha Rambova in American Horror Story: Hotel.

In 2016, Daddario had a supporting role in the Nicholas Sparks drama The Choice, directed by Ross Katz. She played Summer Quinn in the film adaptation of Baywatch (2017), a role originated by Nicole Eggert in the television series. That year, she also played Kate Jeffries in the road trip comedy The Layover, directed by William H. Macy. In 2018, she appeared in Maroon 5's music video "Wait" and starred opposite co-writer Adam DeVine in the romantic comedy When We First Met. She filmed a cameo as a scuba diver in Rampage, directed by Brad Peyton, but her scenes were cut.

In 2020, she voiced Lois Lane in the animated film Superman: Man of Tomorrow, starred in the noir film Lost Girls & Love Hotels, and appeared in Songbird, the first film shot in Los Angeles during the COVID-19 pandemic. In 2021, she appeared in the HBO series The White Lotus and the film Die in a Gunfight. Her performance in The White Lotus earned her a 2022 Primetime Emmy Award nomination for Outstanding Supporting Actress in a Limited or Anthology Series or Movie. She starred in the 2022 film Wildflower and, beginning in 2023, in the AMC series Mayfair Witches, based on Anne Rice's Lives of the Mayfair Witches novels.

Daddario is the eldest child of Christina, a lawyer, and Richard Daddario, a prosecutor and former head of the New York City Police Department counterterrorism unit. She is of Italian, Irish, English, and Slovak descent. Her younger brother, Matthew Daddario, and younger sister, Catharine Daddario, are also actors. Her paternal grandfather was Emilio Q. Daddario, a Democratic member of the U.S. House of Representatives for Connecticut from 1959 to 1971. Daddario has been in a relationship with producer Andrew Form since 2020. They announced their engagement on December 2, 2021, and married in June 2022. As of February 21, 2026, the couple announced their separation, stating the decision was made "with love and respect" and requesting privacy while they continue to co-parent their young son.