Morgan Spector Confirmed To Play Robert Langdon In Netflix Series Based On Dan Brown’s ‘The Secret Of Secrets’

It’s official: Morgan Spector (Black Rabbit, The Gilded Age), has closed a deal to lead Netflix‘s series adaptation of The Secret of Secrets mystery thriller novel by Dan Brown, which comes from the bestselling author and Carlton Cuse (Lost, Five Days At Memorial). Spector will play Robert Langdon, taking over the role played on the big screen by Tom Hanks.

Langdon is a Harvard professor and world-renowned symbologist whose eidetic memory and puzzle-solving abilities help him unravel mysteries at the intersection of science and spirituality. As Deadline reported earlier this month, Rebecca Hall is poised to play the female lead in the series.

Per the same report, Morgan’s casting does not mean a departure from HBO’s The Gilded Age where he stars as fan favorite railroad tycoon George Russell. Morgan would be able to do both series with proper scheduling should Gilded Age get renewed for a fifth season. (Season 4 is expected to come out this fall.)

The as-yet untitled series adaptation is said to blend futuristic science with mystical lore. In the The Secret of Secrets novel, Robert Langdon (Spector) races against ancient forces and time to rescue his girlfriend, missing scientist and her groundbreaking manuscript whose discoveries have the power to forever change humanity’s understanding of the mind.

Cuse and Brown are co-creators, and executive producers of the series adaptation, with Cuse serving as writer and showrunner. Emma Forman of Cuse’s Genre-Arts also executive produces the project with Zoe Robyn, which landed at Netflix in May 2025 with a straight-to-series order.

“Morgan is a truly wonderful actor whose work is always filled with intelligence, thoughtfulness and humanity,” said Cuse on what makes Morgan the right person this role and specific story. “He’s the perfect fit for Robert Langdon — a brilliant academic whose curiosity, intelligence and intellect are the tools of his trade.”

The Secret of Secrets was published by Doubleday on September 9, 2025.