One of the publishing world’s most talked-about open secrets has finally been laid to rest: globally adored psychological thriller writer Freida McFadden has stepped forward to reveal her real name is Sara Cohen, ending years of public speculation about her private identity.
For years, McFadden never hid that her famous pen name was a pseudonym, nor that she balanced a writing career with work as a full-time medical doctor. But she had guarded her birth name closely, turning away repeated requests to unmask her public persona to protect both her professional work and personal privacy.
In an exclusive interview with USA Today, Cohen explained she had reached a point in her career where keeping her identity secret no longer made sense. “I’m tired of this being a secret,” she said. “I’m tired of people debating if I’m a real person or if I’m three men. I am a real person and I have a real identity and I don’t have anything to hide.”
Cohen’s rise to literary stardom has been one of the most remarkable success stories of modern publishing. In 2025 alone, she claimed the title of the second highest-selling author in the United Kingdom, moving 2.6 million copies, and sold an additional 6 million print books in her native United States. Only beloved children’s author Julia Donaldson, creator of *The Gruffalo*, outranked her in UK sales that year.
Her commercial breakthrough came with the 2022 psychological thriller *The Housemaid*, a viral hit that spawned multiple sequels and was adapted into a major motion picture in 2024 starring A-list actors Sydney Sweeney and Amanda Seyfried. To date, the prolific author has published 29 novels, and three of her titles — *The Housemaid*, *Want to Know a Secret?*, and *Dear Debbie* — have already topped bestseller charts in 2026.
The origin of her pen name traces back to her early medical career, when she first self-published her debut book, *The Devil Wears Scrubs*, a fictionalized account of her experience as a medical resident, in 2013. The name “Freida” comes from a longstanding inside medical reference: the Fellowship and Residency Electronic Interactive Database, a common training registry used by hospitals across the United States, universally shortened to FREIDA.
For more than a decade, Cohen maintained strict separation between her two lives, working full-time as a brain disorder specialist in Boston, Massachusetts while writing thrillers in her spare time. She told *The New York Times* in 2024 that she chose to keep her identities separate out of professional concern: she worried her patients would feel uncomfortable being treated by a best-selling crime writer, and feared they would assume plot points in her medically themed stories were based on her actual patients, a misperception she saw as unethical.
Beyond professional boundaries, Cohen also cited social anxiety and a preference for privacy as core reasons for staying anonymous. “I don’t like to be the centre of attention,” she told *The Washington Post* that same year. “I love that people are reading my books, but the spotlight on me specifically is hard. It’s not just about privacy but also about social anxiety. I had this fear that I may not be that amazing person that everyone expects you to be.”
That dynamic shifted in 2023, when Cohen’s massive book sales allowed her to cut back to part-time medical work. She has since scaled back her clinical hours even further, now only working one or two shifts per month, creating the space for her to step forward publicly. “My whole goal was to keep it a secret until I was ready to step back from my doctor job, so it wouldn’t be like everyone I work with suddenly knew and it compromised my ability to do my job,” she explained to USA Today. “But I have stepped away from my job. I just realised I was completely overwhelmed from trying to do both.”
The push to reveal her identity also came after her cover was accidentally blown by a colleague earlier this year. She told *The New York Times* in January 2026: “One of my colleagues at the hospital recently recognised me in a Freida photo, and told everyone, so the cat is out of the bag. But they’ve been really respectful about not posting anything about me on social media, and I tried to repay them with a book signing at work.”
Addressing one more lingering fan rumor, Cohen clarified that the wig she has worn during all public appearances as Freida McFadden is not an attempt to further hide her identity — it is simply because she has no idea how to style her own hair.
Even as she reveals her real name, Cohen says she expects her loyal fanbase, who call themselves “McFans” and “Freida Readahs,” to continue connecting with her work under the pen name they know and love. “Even though I haven’t told my real name until now, I feel like I have shared the real me all along and everything I’ve told them has been the truth,” she said. “Even though the name will be a surprise, nothing else will. I’ve always been genuine with my readers.”