American actor and musician Sydney Lemmon only turned professional in 2014, but she has already wowed audiences and critics with her performances in the likes of Helstrom, Succession, and Fear the Walking Dead. Her appearances in three episodes of the latter show earned her a nomination for Best Guest Performance in a Television Series at the 2019 Saturn Awards. That year, she also made her major movie debut, appearing alongside the likes of Jake Gyllenhaal, Toni Collette, and Daveed Diggs in the satirical horror film Velvet Buzzsaw.

Born in Los Angeles in 1990 but raised in Connecticut, Lemmon trained as an actor at the world-famous Yale School of Drama. She also spent time studying at the similarly prestigious London Academy of Dramatic Arts. By the time she graduated from Yale in 2017, she had already made a handful of adverts, television series, and short films, but she began to get bigger and better roles in 2018, appearing in an episode of Law & Order, and more importantly, making her Broadway debut alongside no lesser name than Uma Thurman in a production of The Parisian Woman.

In 2019, she appeared as Isabelle in the fifth season of the hit supernatural series Fear the Walking Dead, winning her first award nomination. She also appeared in an episode of the critically-acclaimed satirical series Succession. In 2020, she got her first co-starring role in Hulu’s Helstrom, which is based on characters in the Marvel superhero universe. Away from acting, she writes and performs songs with her brother, fellow actor Jon Lemmon.