| "I once thought I could save the world... now look at it"
— Spoilers for Deus Ex: Mankind Divided follow!
Joseph Manderley is Advisor to the Deputy Administrator, National Preparedness of FEMA. This unwieldy title disguises his true role as an executive officer for the black operations undertaken by the government of the United States; including administrating clandestine internment camps for American dissidents. Joseph Manderley plays an important role as the enforcer of the provisions of the Revised Homeland Security Act of 2012.
Manderley is appointed by U.N. as Director of a newly formed Task Force 29, an anti-terrorist intelligence and response team overseen by Interpol. In this role, he is the second highest person at Interpol after the Secretary General. Branch directors including Jim Miller and Christian Jarreau report directly to Manderley.
|"Manderley is one of the few agents who actually survived to retire from field duty. As luck would have it, concurrent with his being assigned desk duty, the agency began to toy with the concept of mechanical augmentation. In those early, fierce debates, Manderley earned a reputation for fast thinking, sharp negotiating and accurately predicting that pitfalls lay ahead. His ability to manipulate events from behind the scenes was less remarked upon, but similarly impressive. He eventually came to oversee the entire department of augmentation, from choosing likely candidates to handing out assignments. Anyway, that's what it says on his government bio, and who are we to argue?
There was one thing that Manderley didn't foresee, however. As technology evolved and the "older model" augs became out of date, the previous generation of enhanced agents became demoralized and dissatisfied. Instead of building up an army of augmented agents — each new rank adding new talents and abilities — the older agents preferred to retire than than be demoted to shock-troops for the new "hotshot" agents."
|- description of Joseph Manderley to the player, Deus Ex|
When JC Denton initially arrives at UNATCO Headquarters on Liberty Island, Manderley is already under considerable pressure, primarily from Simons, due to the disappointing performance of JC's brother, Paul Denton, as a UNATCO operative. As Paul's Commanding Officer, Manderley had been charged with the task of assuring the success of the "Primary Unit" as the unwitting tool of Bob Page and Majestic 12 by having him assist their efforts through the facade of completing UNATCO anti-terrorism operations. As Paul Denton had become aware of this fact through those he had been sent to eliminate, he continually returned from the majority of his campaigns having "failed" to complete his assigned task. Given one final opportunity to prove his worth by the increasingly agitated Page, Manderley naturally spent most his time with JC reminding him to always follow procedure, never question standing orders, and to obey the commands of superior officers. Manderley also placed JC under the command of a trusted operative, agent Anna Navarre.
When JC, following the advice of his brother, defected to the NSF, Manderley was held solely responsible for the loss of both units. After Manderley's failure, Page and Simons pretend to consider posting him to the Library of Congress, and he tries to object saying that he "can't control a man's mind." As JC attempts to escape UNATCO headquarters, he confronts Manderley and Simons having a demotion-conference over holocom. Manderley wil appear friendly, but attack as soon as JC is about to leave the office. He can either be executed or knocked unconcious beforehand, killed or knocked unconscious in the firefight; or JC can escape him, or not confront him at all. He can also be killed by Miguel. Even if he is killed, an e-mail from Sam Carter reveals that Manderley has disappeared, rumored to be re-assigned while Simons has taken his place. If not killed, Manderley will either way be executed by Majestic 12 to frame JC for his murder.
- In Deus Ex, Manderley's login is "jmanderley" and his password is "knight_killer". This is a reference to his involvement in the attack on the Knights Templar.
- In Deus Ex, soldiers in Brooklyn mention him even though he is already dead by that time.
- "Don't despise training, my boy. Even you would be worthless without the shaping touch of drills and studies."
- "And JC, try to follow orders this time."
- "You Dentons sure hung us out to dry."
- "I refuse to be pushed into some obscure bureaucratic cubbyhole!"
- "You'll behave like a professional, that's an order!"
- "Hey! Who do you think you are?"
- "Grow up, JC!"
- "That's enough, Agent!"