Bean is best known for his work on TV's "Game of Thrones," as well as in the film "The Lord of the Rings: The Fellowship of the Ring."
TNT said it has ordered 10 episodes of "Legends," which is based on the book by master spy novelist Robert Littell. The cable network previously adapted Littell's book "The Company" as a miniseries.
In "Legends," Bean stars as Martin Odum, an undercover agent working for the FBI's Deep Cover Operations division. Martin has the uncanny ability to transform himself into a completely different person for each job. But he begins to question his own identity when a mysterious stranger suggests that Martin isn't the man he believes himself to be, TNT said in a synopsis.
"'Legends' has everything you want in a good spy drama: intriguing characters, multi-layered plots, a terrific cast and lots of action and suspense," Michael Wright, president and head of programming for TNT, TBS and Turner Classic Movies, said in a statement. "At the center of it all is Sean Bean, giving an outstanding performance in an extremely complex and difficult role. We are very excited to work with Howard Gordon and his fellow executive producers, who have put together a truly extraordinary drama."