Isabel May is an American actress. She first gained attention as high school student Katie Cooper, one of the co-lead roles on the Netflix series Alexa & Katie (2018–2020), and gained further attention as co-lead character Elsa Dutton on the Paramount+ series 1883 (2021–2022), reprising the role as the narrator of its sequel series, 1923 (2022–2023), and the series finale of Yellowstone (2025).