She started a bachelor's degree at Carnegie Mellon University in Pittsburgh, before dropping out to move to Los Angeles to pursue a career in acting.
[2] The film was well-received by critics, with Ann Hornaday of The Washington Post writing, "[Jenny] Slate and Quinn are completely believable as sisters who occupy a space between twinlike closeness and alienation.
"[3] In 2018, Quinn starred as Josephine Cavallo in the film Radium Girls, alongside Joey King.
[4] In October of that year, she played Kristy Esposito in the Better Call Saul season 4 finale "Winner",[5] and was cast as Annie Moffat in the 2019 film adaptation of Little Women.
[6] In 2019, Quinn starred as Mabel Buchman in the sitcom Mad About You, alongside Helen Hunt and Paul Reiser.