Marielle Stiles Heller is an American director, screenwriter and actress. She is best known for directing the films The Diary of a Teenage Girl (2015), Can You Ever Forgive Me? (2018), and A Beautiful Day in the Neighborhood (2019), as well as acting in The Queen’s Gambit (2020).

Casual is an American television comedy drama television series that premiered on October 7, 2015, on Hulu. Created by Zander Lehmann and directed by Jason Reitman, it centers on Valerie, a newly divorced single mother living with her brother Alex and her daughter Laura. The cast also includes Frances Conroy and Nyasha Hatendi.