Linda Cardellini Joins Bill Hader's New Project: 'They Know' | Exclusive Details (2026)

Bold headline: Linda Cardellini eyes a pivotal lead in Bill Hader’s They Know, a project Hader is crafting behind and in front of the camera.

Linda Cardellini is in negotiations to co-star opposite Bill Hader in They Know, the feature Hader is writing, directing, and producing, as reported by Nexus Point News.

Plot overview: They Know centers on a man who recently separated from his wife and begins to suspect that their new neighbor may be pulling strings on his wife and children. If the deal closes, Cardellini is set to play the wife, with Hader cast as the husband, Kyle. Casting for additional roles is still underway. The film is being produced by MRC, the studio behind Emerald Fennell’s Wuthering Heights and Netflix’s Ozark, in collaboration with Hader. Nexus Point News has reached out to reps for comment.

About the talent:
- Bill Hader is widely recognized for his work on HBO’s Barry, where he portrays a hitman turning toward acting, a role that earned him multiple Emmy Awards. His most recent voice work includes the animated feature IF, directed by John Krasinski, and he is slated to voice the titular character in Warner Bros.’ upcoming animation The Cat in the Hat.
- Linda Cardellini is known for her performances in the live-action Scooby-Doo films and the Netflix dark comedy Dead to Me, as well as her portrayal of Laura Barton in the Marvel Cinematic Universe. Her upcoming projects include DTF St. Louis, Crystal Lake, and Way of the Warrior Kid. Cardellini is represented by CAA, Shelter PR, and Jackoway Austen Tyerman.

Production timeline: Filming for They Know is planned to commence in April.

Why this matters: The pairing of Cardellini and Hader signals a potential blend of sharp character drama with Hader’s signature offbeat humor, inviting audiences to see how they navigate a tense dynamic within a suspense-driven narrative.

Question for readers: Do you think Cardellini’s range—from dark comedy to high-stakes drama—will elevate They Know in ways that resonate with both fans of Barry and Dead to Me? Share your thoughts and predictions in the comments.

Linda Cardellini Joins Bill Hader's New Project: 'They Know' | Exclusive Details (2026)

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