Sophia Lillis is an American actress. She is known for her role as Beverly Marsh in the horror films It (2017) and It: Chapter Two (2019) and for her starring role as a teenager with telekinetic abilities in the Netflix comedy series I Am Not Okay with This (2020). Lillis has also appeared in the HBO psychological thriller miniseries Sharp Objects (2018) and played the titular detective in the film Nancy Drew and the Hidden Staircase (2019).