| "I once thought I could save the world... now look at it"
— Spoilers for Deus Ex: Mankind Divided follow!
James "Jim" Miller is the director of the Central European branch of Task Force 29, an international counter-terror force funded by Interpol. He is Adam Jensen's boss in Deus Ex: Mankind Divided and the Deus Ex Universe: Children's Crusade comics.
Before the Aug Incident of 2027, Miller was part of the Australian Tactical Assault Group (TAG, a military counter-terrorism unit) and was described as an excellent marksman by his colleagues. An unknown time later, he left TAG and joined TF29.
Prior to late 2029, Miller had married Neil Mayhew-Smith and they had adopted two children: Susie and Ethan. However, by late 2029 the couple was going through a nasty divorce with the two children living with Neil and Miller refusing to give his consent for a surgery to be done on their daughter whose spine was degenerating.
Despite his personal life, Miller didn't let it interfere with his professional one and was seen as a direct and decisive leader, committed to his job and passionate about protecting civilians. He has gone through his entire career with unwavering respect for the chain of command. But lately, questionable orders passed down by his boss are causing Miller to balk, resulting in him starting to reconsider his stance.
- During the final mission in London, Miller is badly injured. Jensen can save him by using the Antidote found earlier in a Palisade Data Vault in Prague during The Heist. Saving Miller will unlock the He's [Not] Dead, Jim achievement.
- According to The Art of Deus Ex Universe, Jim Miller's appearance is based on the actor Rutger Hauer as a reference to his character Roy Batty from Blade Runner.
- On one of Miller's computers is an e-mail from Bennet, an old comrade during his time in the Special Forces. This is likely a reference to the 1985 film Commando, where Miller's voice actor, Vernon Wells, portrayed the character of the same name.