Sweeney first gained attention for appearing in the television series Everything Sucks 2018 The Handmaids Tale 2018 and
the limited series Sharp Objects 2018. In 2019 she was featured in Quentin Tarantino's film Once Upon a Time in Hollywood
and in 2023 she gained praise for portraying Reality Winner in the film Reality.
Sweeney attended Saint Georges School in Spokane.She was active in numerous athletics I was in every single sport possible
she said.I was on the soccer team the baseball team the snow slalom ski team I was wakeboarding. Sweeney also studied multiple
languages and graduated with top grades.She became interested in acting after auditioning to be an extra in an independent film
that was shooting in the Spokane area.
To convince her parents to allow her to pursue acting she presented them with a five-yearbusiness plan. Sweeney began to audition
and book commercial acting jobs in Seattle and Portland Oregon where the family temporarilyresided until choosing to relocate to
Los Angeles California when she was 14 years old.