Kaitlyn Rochelle Dever (born December 21, 1996) is an American actress. She gained recognition for her roles in the FX crime drama television series Justified (2011–2015), the ABC/Fox sitcom Last Man Standing (2011–2021), the Netflix drama miniseries Unbelievable (2019), and the Hulu drama Dopesick (2021), the last two of which earned her Golden Globe nominations. Dever took on supporting parts in various films, such as Bad Teacher (2011), The Spectacular Now (2013), Short Term 12 (2013), Detroit (2017), Beautiful Boy (2018) and Dear Evan Hansen (2021). She also had leading roles in the 2019 films Them That Follow and Booksmart. Dever appeared in an episode of the anthology series Monsterland for Hulu. In 2021, she starred as Abbi Miller in episode 3 of B.J. Novak's FX anthology series The Premise.