Stephen Kalyn, best known for starring in the Prime Video series Off Campus, has joined the cast of The Housemaid’s Secret, Lionsgate’s upcoming sequel to its hit psychological thriller The Housemaid. According to the latest casting update, Kalyn will take on the role of Brock, a wealthy lawyer who also happens to be the boyfriend of Sydney Sweeney’s character, Millie. The studio’s decision to add Kalyn to the project continues to build anticipation for a film that has already generated considerable buzz following the box office success of its predecessor.

The forthcoming movie is being directed by Paul Feig, known for Bridesmaids, Spy, and A Simple Favor. The sequel reportedly has a December 2027 release date, giving the creative team ample time to bring the next chapter of Millie’s story to the screen. Alongside Sweeney and Kalyn, the cast will feature Kirsten Dunst and Paul Anthony Kelly, though specific character details for those actors remain under wraps.

Headline and key facts

• Stephen Kalyn has been cast as Brock in The Housemaid’s Secret.
• He will play the wealthy lawyer boyfriend of Sydney Sweeney’s character, Millie.
• Brock is reportedly unaware of Millie’s criminal past.
• Paul Feig is directing the sequel for Lionsgate.
• The cast also includes Sydney Sweeney, Kirsten Dunst, and Paul Anthony Kelly.
• The movie is scheduled for release in December 2027.

A sequel born from box office momentum

The original The Housemaid, based on Freida McFadden’s bestselling novel, became one of the more talked-about psychological thrillers in recent memory. Its blend of domestic tension, unreliable narration, and twist-heavy plotting struck a chord with audiences, making the film a commercial hit. That success made a sequel almost inevitable, and Lionsgate officially confirmed the project on January 6. With a well-regarded director and a rising star like Sweeney attached, the sequel has quickly become one of the studio’s most anticipated releases.

McFadden’s novel The Housemaid’s Secret is the second installment in a series that began with The Housemaid. The books follow Millie Calloway as she tries to build a stable life while hiding from a past she desperately wants to leave behind. In the second novel, Millie takes on a job working for a wealthy Manhattan couple and quickly discovers that their perfect apartment hides dark secrets. The film adaptation appears to be making some notable changes for the screen, including the introduction of Brock as Millie’s boyfriend, but the core setup remains true to the novel’s suspenseful spirit.

The role of Brock

According to the announcement, Brock is a wealthy lawyer who is dating Millie and knows nothing about her criminal history. That description sets up a compelling dramatic conflict. Millie’s relationship with Brock may represent a genuine attempt to move forward, but it also creates new risks. The more connected she becomes to someone with money and legal expertise, the greater the chance that her secrets could be exposed. Brock could be a source of protection, a symbol of the normal life Millie wants, or an obstacle she must eventually escape.

The part also gives Stephen Kalyn a chance to work with a large ensemble and a well-known director. He first gained attention in television, and Off Campus allowed him to show a more grounded side of the college-athlete experience. While his filmography may not be as widely known as some of his co-stars, his casting indicates that Lionsgate is looking for fresh energy in the ensemble. Playing Brock is not just a simple love interest role; it requires an actor who can project warmth and privilege while also conveying the idealized world that Millie is afraid of losing. Kalyn’s previous work suggests he can bring both charm and complexity to that part.

A strong cast taking shape

The sequel benefits from Sydney Sweeney’s massive popularity following her roles in Euphoria, The White Lotus, and Anyone But You. As Millie, she brings a combination of vulnerability and steeliness that makes her easy to root for even when her choices are morally complicated. In The Housemaid’s Secret, Millie is reportedly trying to move forward with her life, and her relationship with Brock represents a chance at normalcy. But Brock has no idea about Millie’s criminal history, which creates a ticking time bomb at the center of the story. The dramatic tension lies in how much longer she can keep up appearances and what will happen when her past finally catches up with her.

Kirsten Dunst’s involvement also adds considerable weight to the project. Dunst has consistently chosen challenging roles, and her presence suggests the sequel will not simply be a retread of the first film. Paul Anthony Kelly, meanwhile, rounds out a cast that seems designed to keep audiences guessing. While details about their characters are limited, fans of the book series may already have theories about how their storylines will connect to Millie’s.

Paul Feig’s approach to suspense

Paul Feig’s direction will be crucial in determining the film’s tone. His work in A Simple Favor demonstrated that he can handle stories with stylish visuals and double-crosses, while his background in comedy ensures that even tense scenes can have moments of wit. For The Housemaid’s Secret, he may lean into the domestic thriller genre with a more serious eye. The setting of a wealthy household offers plenty of opportunities for visual storytelling, and Feig has a good eye for production design and atmosphere. He is also known for working well with actors, which should help the ensemble find the right balance between melodrama and genuine emotion.

The casting news also aligns with the sequel’s likely themes of class, power, and secrets. Brock is described as a wealthy lawyer, which places him in a position of social and financial authority. That dynamic may complicate Millie’s efforts to reinvent herself. It remains to be seen whether Brock is merely an unaware boyfriend or if he will become a more central figure in the film’s twists. The announcement hints that he will be important enough to shape the story, and Kalyn’s involvement suggests the role may be more substantial than a typical cameo.

Source material and fan expectations

The source material has a built-in audience. Freida McFadden became a publishing phenomenon by writing fast-paced, addictive thrillers. The Housemaid sold millions of copies and topped charts around the world. Her follow-up, The Housemaid’s Secret, was enthusiastically received by readers who wanted more of Millie’s story. Adapting a book with such an engaged fandom comes with high expectations. The movie will need to honor the elements that made the original so popular while also feeling fresh enough to stand on its own.

Fans of the book series will likely be watching closely to see how the film handles the book’s most memorable twists. The novel is known for shifting perspectives and making readers question what they know about the characters. A faithful adaptation would preserve those surprises, though the addition of Brock as Millie’s boyfriend represents a clear departure from the books. That change could either annoy purists or make the story feel newly relevant for a cinematic audience. The producers seem willing to take risks, and casting Kalyn signals that the romance will play a central role in the film.

There are also questions about Millie’s criminal past and how much screen time the film will devote to flashbacks. The original novel’s power comes from its slow reveals, and the sequel will need to maintain that sense of dread while also moving the plot forward. The presence of Brock, unaware of Millie’s history, creates a dramatic irony that could make the film more tense than its predecessor. Audiences will know something that at least one character does not, and that can be a highly effective source of suspense.

Production outlook

With a December 2027 release date, The Housemaid’s Secret has a long production timeline. Studios often choose December for major genre films because it gives them time to build an audience through marketing campaigns and awards-season positioning. The gap also allows the filmmakers to develop the script carefully, which is important for a sequel that will have to satisfy both readers of the novels and viewers of the first film. The source material provides a strong foundation, but adaptations often require changes to make the story work more effectively in a movie format.

Lionsgate has been particularly busy expanding book-inspired franchises, and The Housemaid’s Secret could be a key piece of that strategy. If the sequel performs as well as the first film, the studio may adapt the third book in the series or create additional stories around the characters. The fact that the project is already attracting notable actors and a well-known director suggests confidence in the material.

As the project moves through pre-production, more casting announcements and plot details are expected to emerge. For now, Stephen Kalyn’s addition gives audiences another reason to mark December 2027 on their calendars. The blend of a beloved book series, a popular director, and a cast of rising and established stars makes The Housemaid’s Secret one of the most intriguing projects currently in development.

Source:Mid-Day News