‘Off Campus’ Star Stephen Kalyn Joins Sydney Sweeney in ‘The Housemaid’s Secret’
Lionsgate struck box office gold last year with ‘The Housemaid’, a twisty thriller that quietly became one of 2025’s biggest surprises. Based on Freida McFadden’s bestselling novel and led by Sydney Sweeney, the film grossed over $400 million worldwide against a modest $35 million budget, making a sequel almost a certainty.
The sequel, ‘The Housemaid’s Secret’, has been steadily expanding its cast over the past few months, with Paul Feig returning to direct from a script by returning screenwriter Rebecca Sonnenshine. Sweeney reprises her role as Millie Calloway, joined by Michele Morrone as the gardener Enzo, alongside newcomers Kirsten Dunst and Paul Anthony Kelly, who will portray a wealthy couple with their own secrets.
The cast has now grown further, with ‘Off Campus’ breakout Stephen Kalyn officially closing a deal to join the ensemble. Kalyn will portray Brock, a handsome lawyer who becomes Millie’s love interest as she strives to rebuild a semblance of a normal life after years spent rescuing women from abusive situations.
Kalyn joins a growing roster that includes Brittany Snow as Marybeth, an unassuming receptionist at the husband’s company. His casting concludes months of speculation about the actor’s potential fit for the project, with reports first emerging back in July before the deal was finalized.
The narrative picks up with Millie taking a new housekeeping job for a wealthy CEO named Douglas Garrick, portrayed by Kelly, working for a woman she has never actually seen in person. As with the original film, this arrangement conceals a much darker secret behind a locked door, one that threatens to reveal truths more perilous than anything Millie herself is hiding.
Dunst steps into the role of the enigmatic Mrs. Garrick, marking a significant new addition to the franchise’s expanding ensemble of recognizable names. The character dynamics reflect the original film’s central tension between Millie and the affluent family she serves, although this time, the mystery surrounding her employer promises to delve even deeper.
Kalyn’s involvement also marks a significant milestone for the Canadian actor, who first gained attention with a supporting role in Prime Video’s ‘Off Campus’ before quickly becoming one of the platform’s most talked-about new faces. Securing a role opposite Sweeney in a high-profile studio thriller signifies a notable increase in visibility for an actor whose career has rapidly progressed over the past year.
‘The Housemaid’s Secret’ is currently slated for a theatrical release on December 17, 2027, giving Lionsgate about a year and a half to finalize the rest of its cast and crew. With the first film demonstrating a strong appetite for McFadden’s twisty domestic thrillers, expectations are already high for how this follow-up will expand on that success.
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