Rebecca Hall Cast as Katherine Solomon in Netflix’s Dan Brown Adaptation

Deadline reports that actress Rebecca Hall, known for *The Beauty* and *The Listeners*, has been officially confirmed as the female lead, Katherine Solomon, in Netflix’s upcoming series based on Dan Brown’s 2025 novel *The Secret of Secrets*. Hall will appear opposite her husband, actor Morgan Spector, who is set to portray the series’ protagonist, symbologist Robert Langdon.

Deadline Hollywood

According to Deadline, the adaptation is being co-created and executive-produced by Dan Brown and veteran showrunner Carlton Cuse, who also serves as writer and showrunner. Emma Forman of Cuse’s Genre-Arts and Zoe Robyn are listed as additional executive producers. The project received a straight-to-series order from Netflix in May 2025.

Deadline Hollywood

*The Secret of Secrets* was published by Doubleday on September 9, 2025. It marks the sixth entry in Brown’s Robert Langdon saga, following *Angels & Demons* (2000), *The Da Vinci Code* (2003), *The Lost Symbol* (2009), *Inferno* (2013) and *Origin* (2017). The Langdon character previously appeared in a film series starring Tom Hanks, which, per Deadline, had grossed approximately $2.24 billion worldwide as of 2025.

Deadline Hollywood

Hall is represented in London by Julian Belfrage Associates, in the United States by WME, and is advised by attorney Gretchen Rush, as noted by Deadline.

Deadline Hollywood

The series is positioned to blend “futuristic science with mystical lore,” aiming to capture the “heart-pounding suspense and international intrigue” that have made the Langdon franchise a global phenomenon. While a release date has not been disclosed, the combination of Hall’s casting, the involvement of Brown and Cuse, and Netflix’s commitment to a full series suggest a high-profile addition to the platform’s slate of literary adaptations.

Deadline Hollywood