She is best known for her role as Nomi Segal on the Freeform comedy drama Grown-ish (2018–2024), Kate Harris in Big Time Adolescence (2019), and Kim Glassman in You People (2023).
[3] Arlook's debut acting role was in the 1998 mockumentary film 20 Dates, playing a fictional character of herself.
[1][4] In 2018, Arlook joined the main cast of the Freeform teen comedy drama series, Grown-ish as Nomi Segal.
[7] In 2019, Arlook starred as Kate Harris in the Hulu coming-of-age comedy film Big Time Adolescence, starring Pete Davidson, Colson Baker, Sydney Sweeney, and Jon Cryer.
[10] In 2024, Arlook joined the romantic comedy series Nobody Wants This, as Rebecca, which premiered on Netflix in September 2024.