Brandon Routh, Gil Bellows, Martin Donovan and Carrie-Anne Moss have boarded the suspense thriller Unthinkable.

According to The Hollywood Reporter, the quartet joins Samuel L. Jackson and Michael Sheen.

Routh and Bellows play members of an FBI anti-terrorism team run by Agent Brody (Moss). With the help of a black-ops agent (Jackson), they're assigned by an FBI director (Donovan) to interrogate an American Muslim man (Sheen) claiming to have nuclear bombs planted in three U.S. cities.

Principal photography is set to begin Oct. 20 in Los Angeles.