Hulu's 'The Looming Tower' Enlists Michael Stuhlbarg, Bill Camp (Exclusive)

Dan Futterman ('Foxcatcher') is penning the adaptation based on Lawrence Wright's Pulitzer Prize-winning book.

Hulu's 9/11 drama is adding two to its ensemble.

Michael Stuhlbarg and Bill Camp have come onboard The Looming Tower as series regulars, The Hollywood Reporter has learned.

Based on Lawrence Wright's Pulitzer Prize-winning nonfiction book, the series traces the rising threat of Osama bin Laden and al-Qaeda, taking a controversial look at how the rivalry between the CIA and FBI may have inadvertently set the stage for the tragedy of 9/11 and the war in Iraq.

Stuhlbarg (Boardwalk Empire) will play Richard Clarke, the counter-terrorism czar of the Clinton Administration. Reporting directly to President Bill Clinton for security and infrastructure protection, Clarke chairs regular inter-agency meetings, but is unable to stop the territorial squabbling between John O’Neill of the FBI and Martin Schmidt of the CIA.

Camp (The Night Of) will play Robert Chesney, an FBI veteran with John O’Neill’s counter-terrorism unit in New York. Nearing voluntary retirement age, Chesney is from a different era, when the FBI was concentrated on domestic organized crime. Despite that, his highly developed instincts and interrogation techniques lead him to extract vital information from suspects in the fight against al-Qaeda.

The two join previously cast star Tahar Rahim (The Last Panthers). Dan Futterman (Foxcatcher) penned the adaptation and will executive produce with Alex Gibney (Going Clear) and Wright. The drama hails from Legendary Television.

In addition to Boardwalk Empire, Stuhlbarg's credits include Doctor Strange, Arrival, Transparent and A Serious Man. The actor, whose upcoming roles include season three of Fargo and Call Me By Your Name, is repped by ICM and Viking Entertainment.

Camp, who co-starred in The Night Of, has also recently appeared in the films Jason Bourne, Loving and Gold in addition to roles in Manhattan and Damages. He is repped by Innovative Artists.