Development It was announced that Netflix acquired an unnamed espionage drama on April 28, 2021, with
Entertainment One backing the production. Dubbed
Graymail, the project was created by Alexi Hawley, executive producer of several popular
procedural drama series, such as
Castle,
The Rookie, and
its spin-off. Hawley again served as
executive producer as well as
showrunner. Alongside Hawley, Noah Centineo;
Doug Liman, Gene Klein, and
Dave Bartis of
Hypnotic; and
Adam Ciralsky and
Charlie Ebersol of
P3 Media also joined the project as executive producers. The project was set as an eight-part one-hour television series. It was unveiled on September 28, 2022, that Hawley, George Ghanem, Amelia Roper, Hadi Deeb, Niceole Levy, and Maya Goldsmith served as the series writers. Meanwhile, Doug Liman,
Alex Kalymnios, Emmanuel Osei-Kuffour Jr., and Julian Holmes directed the episodes. On January 26, 2023, Netflix renewed the series for a second season. On March 5, 2025, Netflix canceled the series after two seasons.
Casting When the production was announced on April 28, 2021, Centineo was unveiled as the lead character of the series. In addition, Byron Mann, Angel Parker, and Kaylah Zander were also announced in recurring capacities. On January 25, 2024,
James Purefoy,
Brooke Smith,
Devika Bhise,
Felix Solis, Young-Ah Kim,
Do Hyun Shin,
Sanghee Lee,
Omar Maskati, and
Alana Hawley Purvis joined the cast in recurring capacities for the second season.
Filming Principal photography for the first season took place in
Sorel-Tracy, Quebec, and
Los Angeles, California, on October 25, 2021, Filming for the second season began on January 4, 2024, and took place in
Vancouver, Canada, and
Seoul, South Korea. ==Release==