Sydney Sweeney’s Housemaid’s Secret Cast Confirms Key Book Character With Beloved Netflix Star

Published Aug 4, 2026, 12:08 PM EDT Rianna is the Movie News Editor for ScreenRant. After earning her BA in Film Studies, she began her career as an entertainment writer, contributing to several publications before joining ScreenRant. Her dissertation on the impact of streaming on traditional cinema sharpened her focus on the ever-evolving world of film and media. With 10 years in the industry, Rianna continues to cover the stories she loves while also advocating for awareness and representation of rare disabilities, such as Moebius Syndrome, which she lives with. The Housemaid's Secret has added a deadly addition. The Housemaid was originally a novel series written by Freida McFadden and was a major success. The psychological thriller has sold over 3.5 million copies worldwide and spent over 100 weeks on the New York Times bestseller list. Lionsgate identified and optioned Freida McFadden’s literary trilogy (plus a fourth entry, a short story) early on, long before the books became New York Times bestsellers, recognizing the series’ massive potential. It has been confirmed that Brittany Snow has been added to the cast of the sequel The Housemaid's Secret as Marybeth, the unassuming office receptionist, alongside Sydney Sweeney, Kirsten Dunst, and Paul Anthony Kelly. Michele Morrone will also return to star as Enzo, reprising his role from the first film. Paul Feig returns to direct the project, joined by the producers: Hidden Pictures’ Todd Lieberman; Laura Fischer and Feig, who produce for Pretty Dangerous Pictures; and Sweeney, through her Honey Trap banner. "In The Housemaid’s Secret, Millie returns, taking a job keeping house for a woman she’s never allowed to see, only to discover the truth behind the locked door that threatens to expose secrets far darker than her own." Screenwriter Rebecca Sonnenshine, who adapted the first book, will also return to write The Housemaid’s Secret, based on the bestseller by Freida McFadden. Production has been reported to begin later this year for the highly anticipated sequel. The Housemaid, starring Sweeney, Amanda Seyfried, and Brandon Sklenar, was a major box office success, grossing over $400 million and earning a decent Rotten Tomatoes score of 74% from critics and 92% from audiences. Critics stated that "This adaptation is so faithful that fans of the book will be happy, and new audiences get to experience the twists as they are," and "This is a sleek, smartly constructed thriller that understands how to manipulate expectation, perspective, and fear." Seyfried hasn't been confirmed to return for the sequel, but it has been reported that it's a very high possibility. Snow currently stars in the Netflix series The Hunting Wives, produced by Lionsgate Television, which is headed into its second season on Netflix. Additional recent projects include Netflix’s Emmy-nominated limited series The Beast in Me, opposite Claire Danes and Matthew Rhys, Netflix’s The Night Agent, Hulu’s Murdaugh: Death in the Family, and the Academy Award-nominated short film Red, White and Blue. The Housemaid's Secret will arrive in theaters on December 17. Release Date December 17, 2027 Director Paul Feig Writers Rebecca Sonnenshine Producers Todd Lieberman, Paul Feig, Laura Fischer